Paul Scowen is a Senior Research Astrophysicist at the NASA Goddard Space Flight Center. His research interests have been focused on a better understanding of both the formation and evolution of massive stars and how they shape the evolution of galaxies. He also has experience developing ultraviolet instruments and missions to leverage the diagnostic lines in the ultraviolet to gain new insight into these critical objects. In his early career Scowen was a member of the HST-WFPC2 IDT straight out of grad school and worked on the initial servicing mission and repair of the Hubble Space Telescope. Once fixed, he engaged in a series of science programs with the Observatory, including being part of the original Pillars of Creation program, as well as others: Crab Nebula Movie, the Bubble Nebula, and 30 Doradus. Scowen led an effort in the mid-2000's through 2020 to define a UV-visible mission concept named HORUS - this work laid the foundation for both a space-based widefield UV-visible imager and UV spectrograph that informed later efforts such as HabEx and LUVOIR at a larger scale. A derived study that was inspired by HORUS was the Star Formation Camera which was one instrument concept in the mission concept named THEIA that directly informed the 2010 Decadal Survey. Based on this work, Scowen then served as the Instrument Scientist on the HabEx STDT for the Ultraviolet Spectrograph (UVS) instrument on that concept, that then went in to the 2020 Decadal and helped shape the drivers for what has now become the Habitable Worlds Observatory (HWO), the top recommended priority of the 2020 Decadal. Scowen now serves as the Instrument Scientist for the Ultraviolet Instrument (UVI) for HWO which includes both the UV-MOS, the multi-object spectrograph, and the UV-IFU, the integral field unit.
Paul A Scowen
(Rsch AST, Stlr Galctic&Xtrgltc Astr)
| Email: | paul.a.scowen@nasa.gov |
| Phone: | 301.286.8771 |
| Org Code: | 667 |
| Address: |
NASA/GSFC Mail Code 667 Greenbelt, MD 20771 |
| Employer: |
Brief Bio
Research Interests
Massive Star Formation and Evolution
Astrophysics: StarsThe interplay between massive stars and star formation in the surrounding environment. This interest extends both to detailed studies of the physics and dynamics of the gas and dust around regions of high mass star formation, as well as to the study of global effects (e.g. self propagating star formation) in other galaxies. The intent is to use the microphysics we have learned about in nearby star formation regions to tell us more about how larger systems propagate star formation and ultimately affect global modes.
Space Mission Development
Astrophysics: Technology & MissionsSpace Mission Development with personnel at NASA Goddard and universities elsewhere. This development has included serving as design lead on the Ultraviolet Spectrograph for the Habitable Exoplanet Imaging Mission (HabEx) concept; and the instrument assembly and test engineer for the SPARCS Cubesat. He also leads a mission concept for an Explorer mission (Polstar) as Mission Project Scientist.
Ultraviolet Instrumentation Design and Development
Astrophysics: Technology & MissionsInstrumentation Development for both ground-based and space-based applications. Lead role in the development of the UV Astrophysics program at NASA Goddard. He maintains a laboratory at Goddard equipped for UV optical testing and calibration that includes a medium sized TVAC chamber equipped with UV-critical contamination sensors (TQCM, RGA) and is equipped with a VUV monochromator and NUV camera. The chamber is capable of heating to bakeout temperatures for cleaning (> 100 C) and cooling for space simulation testing (down to LN2 temps).
Current Projects
Ultraviolet Instrument (UVI) Instrument Scientist
Technology & Missions
Serving in the Project Office as the Ultraviolet Instrument (UVI) Instrument Scientist for the Habitable Worlds Observatory (HWO) and the Technology Maturation Planning for UV-Vis technologies necessary for the mission.
Next Generation Microshutter Arrays
Technology & Missions
Currently serves as the civil servant lead for the Next Generation Microshutter Array program at Goddard to advance the technology now flying on the JWST mission to provide multi-object spectroscopic capabilities for future UV missions like the Habitable Worlds Observatory. The new design focuses on larger form factor, better contrast performance open-to-closed shutter, better blade flatness, better yield and improved control electronics.
Positions/Employment
Senior Research Astrophysicist
NASA - Goddard Space Flight Center
June 2021 - Present
Currently works in the Laboratory for Exoplanets and Stellar Astrophysics, Code 667, in the Astrophysics Division
Acting Lab Chief, Code 667
NASA - Goddard Space Flight Center
April 2022 - May 2024
Full Research Professor
School of Earth & Space Exploration - Arizona State University
June 2017 - June 2021
Associate Research Professor
School of Earth & Space Exploration - Arizona State University
December 2008 - June 2017
Research Scientist
School of Earth & Space Exploration - Arizona State University
June 2007 - December 2008
Research Professional
School of Earth & Space Exploration - Arizona State University
June 2006 - June 2007
Assistant Research Professional
Dept. of Physics & Astronomy - Arizona State University
July 1998 - June 2006
Teaching Experience
· Co-Instructor (with Mark Robinson), SES 405, “Exploration Systems Engineering”, ASU Spring 2021
· Instructor, AST 540, “Observing Instrumentation and Data Analysis”, ASU Fall 2020
· Co-Instructor (with Mark Robinson), SES 405, “Exploration Systems Engineering”, ASU Spring 2020
· Instructor, AST 111, “Introduction to Solar System Astronomy”, ASU Fall 2019
· Instructor, AST 394, “Astrophysics Research Seminar”, ASU Spring 2019
· Instructor, AST 540, “Observing Instrumentation and Data Analysis”, ASU Fall 2018
· Instructor, AST 394, “Astrophysics Research Seminar”, ASU Spring 2018
· Instructor, SES 330, “Electronics Instrumentation”, ASU Fall 2017
· Co-Instructor (with Mark Robinson), SES 405, “Exploration Systems Engineering”, ASU Spring 2017
· Instructor, AST 394, “Astrophysics Research Seminar”, ASU Spring 2017
· Instructor, SES 405, “Exploration Systems Engineering”, ASU Spring 2016
· Instructor, AST 394, “Astrophysics Research Seminar”, ASU Spring 2016
· Instructor, AST 598, “Observing Instrumentation and Data Analysis”, ASU Fall 2015
· Instructor, AST 394, “Astrophysics Research Seminar”, ASU Spring 2015
· Instructor, AST 114, “Astronomy Lab II.”, ASU Spring 2015
· Instructor, AST 113, “Astronomy Lab I.”, ASU Fall 2014
· Instructor, AST 394, “Astrophysics Research Seminar”, ASU Spring 2014
· Co-Instructor (with Mark Robinson), SES 405, “Exploration Systems Engineering”, ASU Spring 2014
· Co-Instructor (with Mark Robinson), SES 405, “Exploration Systems Engineering”, ASU Spring 2013
· Co-Instructor (with Mark Robinson), SES 405, “Exploration Systems Engineering”, ASU Spring 2012
· Guest Instructor (for Chris Groppi), SES 330, “Practical Electronics and Instrumentation”, ASU November & December 2011
· Instructor, AST 598, “Observing Instrumentation and Data Analysis”, ASU Fall 2011
· Instructor, AST 114, “Astronomy Lab II.”, School of Earth & Space Exploration, ASU Spring 2011
· Instructor, AST/GLG 598, “Astronomical & Remote Sensing Instrumentation and Data Analysis”, School of Earth & Space Exploration, ASU Spring 2009
· Instructor, AST/GLG 598, “Astronomical Instrumentation and Data Analysis”, School of Earth & Space Exploration, ASU Fall 2006
· Guest Instructor, PHY 334, “Advanced Laboratory I.”, Dept. of Physics & Astronomy, ASU Spring 2006
· Guest Instructor, PHY 334, “Advanced Laboratory I.”, Dept. of Physics & Astronomy, ASU Spring 2005
· Guest Instructor, AST 111, “Introductory Astronomy I.”, Dept. of Physics & Astronomy, ASU Fall 2004
· Guest Instructor, AST 111, “Introductory Astronomy I.”, Dept. of Physics & Astronomy, ASU Spring 2004
· Guest Instructor, PHY 334, “Advanced Laboratory I.”, Dept. of Physics & Astronomy, ASU Spring 2004
· Instructor, AST 114, “Astronomy Lab II”, Dept. of Physics & Astronomy, ASU Spring 2001
· Instructor, AST 113, “Astronomy Lab I”, Dept. of Physics & Astronomy, ASU Fall 2000
· Instructor, AST 114, “Astronomy Lab II”, Dept. of Physics & Astronomy, ASU Spring 2000
· Instructor, AST 113, “Astronomy Lab I”, Dept. of Physics & Astronomy, ASU Fall 1997
· Instructor, AST 500, “Astronomical Observing and Data Analysis”, Dept. of Physics & Astronomy, ASU Fall 1995
Education
· Ph. D. (Astronomy), May 1993, Thesis: “A study of the HII Region Populations of M101, M51 and NGC 4449", Rice University, Houston, Texas, USA., Advisor: Prof. Reginald J. Dufour
· M. S. (Astrophysics), May 1989, Thesis: “A Calculation of the Mean Age of Interstellar Dust Particles” , Rice University, Houston, Texas, USA., Advisor: Prof. Donald D. Clayton
· B. S. (Hons) (Physics with Astrophysics), July 1987, University of Birmingham, Birmingham, United Kingdom
Professional Societies
American Astronomical Society
Full Member
1989 - Present
SPIE - the International Society for Optical Engineering
Senior Member
2004 - Present
International Astronomical Union
Member
2015 - Present
Professional Service
· Science Director’s Committee, Member and Secretary, Code 600, NASA Goddard Space Flight Center, June 2022 - present
· Astrophysics Line of Business Committee, Code 660, NASA Goddard Space Flight Center, January 2022 – May 2024
· Graduate Oversight Committee, SESE, May 2019 – June 2021
· Universities Space Research Association (USRA), Nominating Committee, April 2019 – June 2021
· Astronomy Faculty Search Committee, SESE, October 2018 – March 2019
· Graduate Student Committee, SESE, August 2018 – June 2021
· Universities Space Research Association (USRA), Council of Institutions, ASU Representative, February 2018 – June 2021
· Aerospace Engineering Faculty Search Committee, Member, representing SESE, November 2017 – February 2018
· Instrument Design and Fabrication Core Facility Governance Board, CLAS, ASU, Appointed Member, March 2017 – June 2021
· NASA Advisory Council – Astrophysics Advisory Committee, Appointed Member, March 2017 – April 2019
· Small Satellites Faculty Search Committee, Member, SESE, August 2016 – April 2017
· Co-Chair, Graduate Oversight Committee, SESE, August 2016 – April 2017
· School Representative, ASU College of Liberal Arts & Science Special Research Committee, 2016 – June 2021
· NASA Habitable Exoplanet Imager Mission (HabEx) Science and Technology Definition Team, Appointed Member, February 2016 – December 2019
· Nominated for Outstanding Instructor Award, College of Liberal Arts & Sciences, Arizona State University, February 2016
· NASA Cosmic Origins Program Analysis Group, Chair, November 2015 – April 2019
· NASA Advisory Council – Astrophysics Subcommittee, Appointed Member, July 2015 – March 2017
· Referee for the Journal of Astronomical Telescopes, Instruments, and Systems, 2015 - present
· Nominated for Outstanding Instructor Award, College of Liberal Arts & Sciences, Arizona State University, February 2015
· Chair, Science Interest Group on the Future of UV-Visible Astronomy from Space, NASA COPAG / NAC Astrophysics Subcommittee, Nov 2014 – February 2018
· Graduate Oversight Subcommittee, SESE, 2014 - 2017
· Nominated for Outstanding Instructor Award, College of Liberal Arts & Sciences, Arizona State University, March 2014
· NASA Postdoctoral Program, Reviewer, April & August 2013
· Systems Engineering Faculty Search Committee, SESE, Spring 2013
· CASIS Materials Science Review Panel for the ISS, Member, February 2013
· Arizona NASA Space Grant Steering Committee, Member, 2012 – June 2021
· NSF Astrophysics Review Panel, Member, March 26-27, 2012
· Obama Mentor, ASU, Chris Cazares, 2011 - 2012
· Executive Committee Member, Cosmic Origins Program Analysis Group, NASA, Fall 2011 – Fall 2014
· Faculty Advisor, ASU Astronomy Club (AstroDevils), 2011 – 2019
· Undergraduate Oversight Subcommittee, Chair, SESE, 2011 - 2014
· ASU Representative, Dark Sky Stakeholder Group, Maricopa Association of Governance, 2011 - 2012
· Systems Engineering Faculty Search Committee, SESE, Spring 2011
· Exoplanet Faculty Search Committee, SESE, Spring 2011
· Cosmology Observer Faculty Search Committee, SESE, Spring 2011
· Obama Mentor, ASU, Erika Fuentes, 2010-2011
· Chair, Ad-Hoc Committee on Engineering BS Degree within SESE, 2009 – 2012
· Obama Mentor, ASU, Ervin Blanton, 2009-2010
· University of Arizona Observatories, Telescope Allocation Committee, ASU representative, 2009 – 2012
· EH&S Compliance Officer, LASI Lab, SESE, 2009 – June 2021
· Member, University Hearing Board, 2007 – 2015
· Referee for Astronomy and Astrophysics, 1999 - present
· Referee for Astrophysical Journal Letters, 1998 - present
· Referee for Nature, 1997 - present
· Referee for the Astronomical Journal, 1996 - present
· Referee for Publications of the Astronomical Society of the Pacific, 1993 – present
· Referee for the Journal of Astronomical Telescopes, Instruments, and Systems, 2015 - present
Awards
- Astrophysics Large Mission Study Team, Group Achievement Award, NASA, August 2019
- Outstanding Alumnus of the 1990’s, Space Physics & Astronomy Dept., 60th Reunion, Rice University, September 2022
Other Professional Information
· Mission Project Scientist, Polstar Explorer-class Mission Proposal, June 2024 – present
· Payload Systems Engineer, SPARCS Cubesat Mission, Summer 2018 - present
· Principal Investigator, Polstar Explorer-class Mission Proposal, January 2019 – June 2024
· Principal Investigator, ANUBIS Probe-class Mission Concept Study, Summer 2018 – 2020
· Instrument Science Lead – UVS Instrument, HabEx Mission Concept Study – 2016-2020
· Co-Chair, ASTRO-1 Requirements Team, BoldyGo Institute, 2015 – 2021
· Principal Investigator, HORUS Origins Science Mission Study, Summer 2005 – Summer 2020
· Principal Investigator, ORION Explorer Mission Proposal, February 2010 – February 2016
· Principal Investigator, Star Formation Observatory / Camera (SFO/SFC) Concept Study, October 2007 - 2011
· Principal Investigator, ASU Laboratory for Astronomical Space Instrumentation (LASI), School of Earth & Space Exploration, Arizona State University, December 2005 – June 2021
· Principal Investigator, Orion MIDEX Mission Proposal, Winter 2005 – 2009
· Project Scientist, HORUS Origins Science Mission Study, PI Jon Morse, Spring 2004 – Summer 2005
· Project Scientist, Orion MIDEX Mission Proposal, PI Jon Morse, Summer 2003 – Winter 2005
· Project Management & Software Development, Small Radio Telescope Project, Fall 2001 – Fall 2010
· Project Management & Software Development, ASU Braeside Observatory Upgrade and Remote Observing, Summer 2000 – Summer 2008
· Visiting Research Assistant Professor, Department of Physics & Astronomy, Arizona State University, August 1997 - June 1998
· Member NASA Astrophysics Data Program Review Panel, July 1997
· Associate Member of the Wide Field/Planetary Camera 2 Investigation Definition Team, June 1992 - December 1998
· Associate Member of the Wide Field and Planetary Camera Investigation Definition Team, June 1992 - December 1997
· Postdoctoral Research Associate, Department of Physics & Astronomy, Arizona State University, June 1992 - August 1997
Publications
Refereed
2025. "Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars." Galaxies 13 (2): 40 [10.3390/galaxies13020040] [Journal Article/Letter]
2024. "The Polstar UV Spectropolarimetry Mission." Bulletin de la Société Royale des Sciences de Liège 93 (3): 156-172 [10.25518/0037-9565.12308] [Journal Article/Letter]
2024. "The Exoplanet Climate Infrared Telescope (EXCITE): gondola pointing and stabilization qualification." Ground-based and Airborne Telescopes X 13094 136 [10.1117/12.3018442] [Proceedings]
2024. "Artemis-enabled stellar imager (AeSI): a Lunar long-baseline UV/optical imaging interferometer." Optical and Infrared Interferometry and Imaging IX 13095 54 [10.1117/12.3028797] [Proceedings]
2024. "Technological developments of NexGen Micro-Shutter Array (NGMSA) for the future Habitable Worlds Observatory (HWO) flagship mission." Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI 13100 60 [10.1117/12.3020479] [Proceedings]
2024. "Performance of the SPARCS UV camera and detectors." Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray 13093 3 [10.1117/12.3018492] [Proceedings]
2024. "The SmallSat Technology Accelerated Maturation Platform-1 (STAMP-1): a proposal to advance ultraviolet science, workforce, and technology for the Habitable Worlds Observatory." Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray 13093 27 [10.1117/12.3018581] [Proceedings]
2024. "Assembly, integration, and testing of the Star-Planet Activity Research CubeSat (SPARCS)." Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray 13093 119 [10.1117/12.3018163] [Proceedings]
2024. "Photometric calibration in the ultraviolet of the Star-Planet Activity Research CubeSat (SPARCS)." Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray 13093 120 [10.1117/12.3019065] [Proceedings]
2024. "Characterizing fabrication quality and UV performance of UV gratings." Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray 13093 154 [10.1117/12.3016276] [Proceedings]
2024. "Assembly, integration, and laboratory testing of the EXCITE spectrograph." Ground-based and Airborne Instrumentation for Astronomy X 13096 390 [10.1117/12.3019286] [Proceedings]
2024. "Integration and testing of a cryogenic receiver for the Exoplanet Climate Infrared Telescope (EXCITE)." Ground-based and Airborne Instrumentation for Astronomy X 13096 140 [10.1117/12.3020522] [Proceedings]
2023. "Scalable microshutter focal plane masks for UV, visible, and infrared spectroscopy." UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII 12678 140 [10.1117/12.2692393] [Proceedings]
2023. "An enhanced contrast evaluation testbed for next-generation microshutter arrays." UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXIII 12678 33 [10.1117/12.2677770] [Proceedings]
2023. "The IAU recommended photometric system for ultraviolet astronomy." Experimental Astronomy 56 (1): 171-195 [10.1007/s10686-023-09894-9] [Journal Article/Letter]
2022. "UV spectropolarimetry with Polstar: massive star binary colliding winds." Astrophysics and Space Science 367 (12): 118 [10.1007/s10509-022-04102-0] [Journal Article/Letter]
2022. "Ultraviolet spectropolarimetry: conservative and nonconservative mass transfer in OB interacting binaries." Astrophysics and Space Science 367 (12): 119 [10.1007/s10509-022-04106-w] [Journal Article/Letter]
2022. "Ultraviolet spectropolarimetry with Polstar: using Polstar to test magnetospheric mass-loss quenching." Astrophysics and Space Science 367 (12): 120 [10.1007/s10509-022-04113-x] [Journal Article/Letter]
2022. "UV spectropolarimetry with Polstar: protoplanetary disks." Astrophysics and Space Science 367 (12): 122 [10.1007/s10509-022-04125-7] [Journal Article/Letter]
2022. "Understanding structure in line-driven stellar winds using ultraviolet spectropolarimetry in the time domain." Astrophysics and Space Science 367 (12): 123 [10.1007/s10509-022-04142-6] [Journal Article/Letter]
2022. "Ultraviolet Spectropolarimetry: on the origin of rapidly rotating B stars." Astrophysics and Space Science 367 (12): 124 [10.1007/s10509-022-04127-5] [Journal Article/Letter]
2022. "UV spectropolarimetry for stellar, interstellar, and exoplanetary astrophysics with Polstar." Astrophysics and Space Science 367 (12): 126 [10.1007/s10509-022-04143-5] [Journal Article/Letter]
2022. "Ultraviolet spectropolarimetry with polstar: interstellar medium science." Astrophysics and Space Science 367 (12): 127 [10.1007/s10509-022-04153-3] [Journal Article/Letter]
2022. "The Polstar high resolution spectropolarimetry MIDEX mission." Astrophysics and Space Science 367 (12): 121 [10.1007/s10509-022-04107-9] [Journal Article/Letter]
2022. "Design drivers for the Polstar spectropolarimeter: an FUV/NUV design achieving high spectral resolving power with precise 4-Stokes measurements." Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray 12181 11 [10.1117/12.2629556] [Proceedings]
2022. "Calibration approach for the Polstar spectropolarimeter." Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray 12181 121 [10.1117/12.2630553] [Proceedings]
2022. "Star-planet activity research CubeSat (SPARCS) science payload assembly, integration, and testing plan." Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray 12181 [10.1117/12.2629562] [Proceedings]
2022. "Star-planet activity research CubeSat (SPARCS) instrument vacuum testing setup." Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray 12181 242 [10.1117/12.2630555] [Proceedings]
2022. "Solar transition region ultraviolet explorer (STRUVE) requirements flow down to design." Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray 12181 175 [10.1117/12.2630386] [Proceedings]
2022. "Solar transition region ultraviolet explorer (STRUVE) pointing performance modeling." Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray 12181 176 [10.1117/12.2630789] [Proceedings]
2022. "The EXoplanet Climate Infrared TElescope (EXCITE)." Ground-based and Airborne Instrumentation for Astronomy IX 12184 31 [10.1117/12.2629373] [Proceedings]
2022. "Design and testing of a low-resolution NIR spectrograph for the EXoplanet Climate Infrared TElescope." Ground-based and Airborne Instrumentation for Astronomy IX 12184 80 [10.1117/12.2629717] [Proceedings]
2022. "The design and development status of the cryogenic receiver for the EXoplanet Climate Infrared TELescope (EXCITE)." Ground-based and Airborne Instrumentation for Astronomy IX 12184 90 [10.1117/12.2629588] [Proceedings]
2021. "Onboard dynamic image exposure control for the Star–Planet Activity Research CubeSat (SPARCS)." Monthly Notices of the Royal Astronomical Society 509 (4): 5702-5712 [10.1093/mnras/stab3396] [Journal Article/Letter]
2021. "Time-Resolved Photometry of the High-Energy Radiation of M Dwarfs with the Star-Planet Activity Research CubeSat (SPARCS)." Astronomische Nachrichten [10.1002/asna.20210068] [Journal Article/Letter]
2021. "Development of a thermal vacuum chamber, performance tests plan, and contamination control procedures for the Star-Planet Activity Research CubeSat (SPARCS)." Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III 11820 12 [10.1117/12.2594894] [Proceedings]
2021. "Design drivers for the PolStar telescope and UV spectropolarimeter instrument." Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems III 11820 16 [10.1117/12.2594798] [Proceedings]
2021. "Star-Planet Activity Research CubeSat (SPARCS) test tank thermal methods." UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts X 11819 20 [10.1117/12.2594804] [Proceedings]
2020. "Camera articulation prototype of the Giant Magellan Telescope Multi-object Astronomical and Cosmological Spectrograph (GMACS)." Software and Cyberinfrastructure for Astronomy VI 11452 [10.1117/12.2561237] [Proceedings]
2020. "SPARCS payload assembly, integration, and test update." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series 11444 114440A [10.1117/12.2562582] [Proceedings]
2020. "Giant Magellan Telescope Multi-object Astronomical and Cosmological Spectrograph (GMACS): conceptual design." Advances in Optical Astronomical Instrumentation 2019 11203 6 [10.1117/12.2547889] [Proceedings]
2019. "The HabEx Ultraviolet Spectrograph (UVS): design and science drivers." UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX 11115 32 [10.1117/12.2531658] [Proceedings]
2019. "Habitable Exoplanet Observatory (HabEx) telescope and optical instruments." Techniques and Instrumentation for Detection of Exoplanets IX 11117 4 [10.1117/12.2530737] [Proceedings]
2018. "The Habitable Exoplanet Observatory (HabEx)." Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave 10698 24 [10.1117/12.2312278] [Proceedings]
2018. "HabEx space telescope optical system overview: general astrophysics instruments." Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave 10698 117 [10.1117/12.2314406] [Proceedings]
2018. "Hexapod actuated focal plane for high-resolution suborbital and ground-based exploration." Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave 10698 214 [10.1117/12.2312289] [Proceedings]
2018. "HabEx ultraviolet spectrograph design and DRM." Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray 10699 4 [10.1117/12.2313496] [Proceedings]
2018. "Monitoring the high-energy radiation environment of exoplanets around low-mass stars with SPARCS (Star-Planet Activity Research CubeSat)." Space Telescopes and Instrumentation 2018: Ultraviolet to Gamma Ray 10699 14 [10.1117/12.2315543] [Proceedings]
2017. "HabEx space telescope optical system." UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII 10398 4 [10.1117/12.2275191] [Proceedings]
2017. "Science and architecture drivers for the HabEx Ultraviolet Spectrograph (UVS)." UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII 10398 6 [10.1117/12.2275147] [Proceedings]
2017. "Recent developments in next-generation UV-visible space telescope planning and design." UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VIII 10398 29 [10.1117/12.2275198] [Proceedings]
2017. "Finding the UV–Visible Path Forward: Proceedings of the Community Workshop to Plan the Future of UV/Visible Space Astrophysics." Publications of the Astronomical Society of the Pacific 129 (977): 076001 [10.1088/1538-3873/129/977/076001] [Journal Article/Letter]
2017. "Single-Photon Intensity Interferometry (SPIIFy): utilizing available telescopes." Monthly Notices of the Royal Astronomical Society 467 (3): 3048-3055 [10.1093/mnras/stx272] [Journal Article/Letter]
2016. "The Habitable Exoplanet (HabEx) Imaging Mission: preliminary science drivers and technical requirements." Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave 9904 99040L [10.1117/12.2240457] [Proceedings]
2016. "Use of plasma enhanced ALD to construct efficient interference filters for astronomy in the FUV." Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II 9912 99122F [10.1117/12.2232704] [Proceedings]
2016. "Focal plane actuation by hexapod for the development of a high-resolution suborbital telescope." Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II 9912 99126B [10.1117/12.2230834] [Proceedings]
2015. "Aluminum mirror coatings for UVOIR telescope optics including the far UV." UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts VII 9602 96020I [10.1117/12.2188981] [Proceedings]
2014. "Focal plane actuation to achieve ultra-high resolution on suborbital balloon payloads." Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation 9151 915115 [10.1117/12.2056393] [Proceedings]
2013. "Scientific objectives for UV/visible astrophysics investigations: a summary of responsesby the community (2012)." Experimental Astronomy 37 (1): 11-35 [10.1007/s10686-013-9363-0] [Journal Article/Letter]
2013. "TIDAL TAILS OF MINOR MERGERS. II. COMPARING STAR FORMATION IN THE TIDAL TAILS OF NGC 2782." The Astrophysical Journal 774 (2): 125 [10.1088/0004-637x/774/2/125] [Journal Article/Letter]
2013. "OBSERVATIONS OF THE CRAB NEBULA'S ASYMMETRICAL DEVELOPMENT." The Astrophysical Journal 765 (2): 152 [10.1088/0004-637x/765/2/152] [Journal Article/Letter]
2012. "Modified modular imaging system designed for a sounding rocket experiment." Ground-based and Airborne Instrumentation for Astronomy IV 8446 84467F [10.1117/12.925592] [Proceedings]
2012. "TIDAL TAILS OF MINOR MERGERS: STAR FORMATION EFFICIENCY IN THE WESTERN TAIL OF NGC 2782." The Astrophysical Journal 749 (1): L1 [10.1088/2041-8205/749/1/l1] [Journal Article/Letter]
2011. "Inferring Rotation Periods of Young Stars from Synoptic Observations." Proceedings of the International Astronomical Union 7 (S285): 327-330 [10.1017/s1743921312000956] [Journal Article/Letter]
2010. "Design and implementation of the NUV/optical widefield Star Formation Camera for the Theia Observatory." Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave 7731 77314Y [10.1117/12.857475] [Proceedings]
2010. "Multiband filters for near-infrared astronomical applications." Ground-based and Airborne Instrumentation for Astronomy III 7735 77356C [10.1117/12.856737] [Proceedings]
2010. "MAPPING THE RECENT STAR FORMATION HISTORY OF THE DISK OF M51." The Astronomical Journal 140 (2): 379-389 [10.1088/0004-6256/140/2/379] [Journal Article/Letter]
2008. "The Star Formation Observatory (SFO) mission to study cosmic origins near and far." Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter 7010 70103Z [10.1117/12.788038] [Proceedings]
2006. "Programmatics and development update for the Orion MIDEX star formation survey mission." Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter 6265 626547 [10.1117/12.671680] [Proceedings]
2004. "Telescope and focal plane instrumentation for the ORION MIDEX Mission." Optical, Infrared, and Millimeter Space Telescopes 5487 1581 [10.1117/12.550639] [Proceedings]
2004. "Observing programmatics and planning for the ORION MIDEX mission." Optical, Infrared, and Millimeter Space Telescopes 5487 1598 [10.1117/12.552419] [Proceedings]
2002. "Analysis and Models of Photoionized Structures Seen in Hubble Space Telescope Images of NGC 7635." The Astronomical Journal 124 (6): 3305-3312 [10.1086/344597] [Journal Article/Letter]
2002. "Hubble Space Telescope Observations of the Windblown Nebula NGC 7635." The Astronomical Journal 124 (6): 3313-3324 [10.1086/344596] [Journal Article/Letter]
2002. "Hubble Space Telescope and Chandra Monitoring of the Crab Synchrotron Nebula." The Astrophysical Journal 577 (1): L49-L52 [10.1086/344132] [Journal Article/Letter]
2000. "Jet‐induced Star Formation in Centaurus A." The Astrophysical Journal 536 (1): 266-276 [10.1086/308927] [Journal Article/Letter]
2000. "Hubble Space Telescope Observations of the Wolf-Rayet Nebula NGC 6888." The Astronomical Journal 119 (6): 2991-3002 [10.1086/301389] [Journal Article/Letter]
1999. "Observations and Implications of the Star Formation History of the Large Magellanic Cloud." The Astronomical Journal 118 (5): 2262-2279 [10.1086/301097] [Journal Article/Letter]
1999. "The Age of the Sculptor Dwarf Spheroidal Galaxy from Imaging with WFPC2." Publications of the Astronomical Society of the Pacific 111 (765): 1392-1397 [10.1086/316447] [Journal Article/Letter]
1999. "Stellar Populations at the Center of IC 1613." The Astronomical Journal 118 (4): 1657-1670 [10.1086/301042] [Journal Article/Letter]
1999. "WFPC2 Observations of Compact Star Cluster Nuclei in Low-Luminosity Spiral Galaxies." The Astronomical Journal 118 (1): 208-235 [10.1086/300909] [Journal Article/Letter]
1999. "The Etched Hourglass Nebula MyCn 18. I. HUBBLE SPACE TELESCOPE Observations." The Astronomical Journal 118 (1): 468-476 [10.1086/300939] [Journal Article/Letter]
1999. "A Variable Asymmetry in the Circumstellar Disk of HH 30." The Astrophysical Journal 516 (2): L95-L98 [10.1086/312001] [Journal Article/Letter]
1999. "Detection of Surface Brightness Fluctuations in NGC 4373 Using the Hubble Space Telescope." The Astrophysical Journal 515 (1): 79-88 [10.1086/306998] [Journal Article/Letter]
1999. "Hubble Space Telescope WFPC2 Imaging of XZ Tauri:Time Evolution of a Herbig-Haro Bow Shock." The Astrophysical Journal 515 (1): L35-L38 [10.1086/311961] [Journal Article/Letter]
1999. "Deep Hubble Space Telescope Observations of Blue Star Clusters in NGC 3597." The Astronomical Journal 117 (4): 1700-1707 [10.1086/300819] [Journal Article/Letter]
1998. "Hubble Space Telescope Imaging of the Circumstellar Nebulosity of T Tauri." The Astrophysical Journal 508 (2): 736-743 [10.1086/306422] [Journal Article/Letter]
1998. "M32 ± 1." The Astronomical Journal 116 (5): 2263-2286 [10.1086/300617] [Journal Article/Letter]
1998. "Far‐Ultraviolet and Visible Imaging of the Nucleus of M32." The Astrophysical Journal 505 (1): 230-235 [10.1086/306169] [Journal Article/Letter]
1998. "WFPC2 Studies of the Crab Nebula. II. Ionization Structure of the Crab Filaments." The Astrophysical Journal 504 (1): 344-358 [10.1086/306078] [Journal Article/Letter]
1998. "Saturn's hydrogen aurora: Wide field and planetary camera 2 imaging from the Hubble Space Telescope." Journal of Geophysical Research: Planets 103 (E9): 20237-20244 [10.1029/98je01324] [Journal Article/Letter]
1998. "Hubble Space Telescope WFPC2 Imaging of FS Tauri and Haro 6‐5B." The Astrophysical Journal 501 (2): 841-852 [10.1086/305861] [Journal Article/Letter]
1998. "Hubble Space Telescope Wide Field Planetary Camera 2 Observations of HH 1–2." The Astronomical Journal 116 (1): 372-395 [10.1086/300396] [Journal Article/Letter]
1998. "Ionization Structure in the 30 Doradus Nebula as Seen with Hubble Space Telescope Wide Field Planetary Camera 2." The Astronomical Journal 116 (1): 163-179 [10.1086/300411] [Journal Article/Letter]
1998. "Deep Hubble Space Telescope Observations of Star Clusters in NGC 1275." The Astronomical Journal 115 (5): 1778-1790 [10.1086/300334] [Journal Article/Letter]
1998. "Stellar Populations in Three Outer Fields of the Large Magellanic Cloud." The Astronomical Journal 115 (3): 1045-1056 [10.1086/300252] [Journal Article/Letter]
1998. "Asteroid Trails in Hubble Space TelescopeWFPC2 Images: First Results." Icarus 131 (2): 261-282 [10.1006/icar.1997.5873] [Journal Article/Letter]
1998. "Imaging of the Egg Nebula (CRL 2688) with WFPC2/HST: A History of AGB/Post‐AGB Giant Branch Mass Loss." The Astrophysical Journal 493 (1): 301-311 [10.1086/305121] [Journal Article/Letter]
1998. "[Hubble Space Telescope Observations of the Draco Dwarf Spheroidal Galaxy." The Astronomical Journal 115 (1): 144-151 [10.1086/300169] [Journal Article/Letter]
1997. "Far-Ultraviolet Imaging of the Large Magellanic Cloud Populous Cluster NGC 1978 with WFPC2." The Astronomical Journal 114 1945 [10.1086/118616] [Journal Article/Letter]
1997. "Hubble Space Telescope WFPC Images of Emission Nebulosity near XZ Tauri." The Astrophysical Journal 481 (1): 447-451 [10.1086/304056] [Journal Article/Letter]
1997. "The Star-Formation History in the Vicinity of NGC 1866 in the Large Magellanic Cloud." Publications of the Astronomical Society of the Pacific 109 292 [10.1086/133888] [Journal Article/Letter]
1997. "Stellar Populations in the Large Magellanic Cloud:Evidence for a Significant Number of Older Stars or a Steeper IMF?." The Astronomical Journal 113 656 [10.1086/118284] [Journal Article/Letter]
1997. "H(alpha), Far-Infrared and Thermal Radio Continuum Emission Within the Late-Type Spiral Galaxy M33." The Astronomical Journal 113 236 [10.1086/118248] [Journal Article/Letter]
1997. "Preliminary results of the ASU/UGA O-star project." AIP Conference Proceedings 393 291-294 [10.1063/1.52795] [Proceedings]
1997. "Hα, far infrared & thermal radio continuum emission within the late-type spiral galaxy M33." AIP Conference Proceedings 393 518-521 [10.1063/1.52824] [Proceedings]
1996. "Hubble Space Telescope Observations of the Disk and Jet of HH 30." The Astrophysical Journal 473 (1): 437-451 [10.1086/178156] [Journal Article/Letter]
1996. "WFPC2 Observations of the Cooling Flow Elliptical in Abell 1795." The Astrophysical Journal 468 (1): L13-L16 [10.1086/310219] [Journal Article/Letter]
1996. "Star Clusters in Interacting and Cooling Flow Galaxies." The Astronomical Journal 112 416 [10.1086/118025] [Journal Article/Letter]
1996. "The Discovery of Young, Luminous, Compact Stellar Clusters in the Starburst Galaxy NGC 253." The Astronomical Journal 112 534 [10.1086/118032] [Journal Article/Letter]
1996. "Main-Sequence Stars and the Star Formation History of the Outer Disk in the Large Magellanic Cloud." The Astrophysical Journal 466 732 [10.1086/177546] [Journal Article/Letter]
1996. "Visible and Far-Ultraviolet WFPC2 Imaging of the Nucleus of the Galaxy NGC 205." The Astrophysical Journal 466 742 [10.1086/177547] [Journal Article/Letter]
1996. "Low Mass Stars in an Outer Field in NGC 6397." Publications of the Astronomical Society of the Pacific 108 682 [10.1086/133785] [Journal Article/Letter]
1996. "Detection of the Tip of the Red Giant Branch in NGC 5128." The Astrophysical Journal 465 79 [10.1086/177403] [Journal Article/Letter]
1996. "Hubble Space Telescope WFPC2 Imaging of M16: Photoevaporation and Emerging Young Stellar Objects." The Astronomical Journal 111 2349 [10.1086/117968] [Journal Article/Letter]
1996. "Far-Ultraviolet Imaging of the Globular Cluster NGC 7099 with the Second Wide-Field and Planetary Camera." The Astrophysical Journal 461 762 [10.1086/177100] [Journal Article/Letter]
1996. "WFPC2 Studies of the Crab Nebula. III. Magnetic Rayleigh-Taylor Instabilities and the Origin of the Filaments." The Astrophysical Journal 456 225 [10.1086/176643] [Journal Article/Letter]
1995. "Evidence for Mass Outflow from the Nucleus of M101: Knots, Rings, and a Geyser." The Astronomical Journal 110 2088 [10.1086/117671] [Journal Article/Letter]
1995. "Hubble Space Telescope Observations of the SN 1987A Triple Ring Nebula." The Astrophysical Journal 452 680 [10.1086/176339] [Journal Article/Letter]
1995. "Hubble Space Telescope Imaging of the Wind-blown Lobe NGC 6165." The Astrophysical Journal 450 196 [10.1086/176131] [Journal Article/Letter]
1995. "WFPC2 Imaging of the Circumstellar Nebulosity of HL Tauri." The Astrophysical Journal 449 888 [10.1086/176106] [Journal Article/Letter]
1995. "WFPC2 Studies of the Crab Nebula. I. HST and ROSAT Imaging of the Synchrotron Nebula." The Astrophysical Journal 448 240 [10.1086/175956] [Journal Article/Letter]
1995. "Gas near the center of 30 Doradus as revealed by Hubble Space Telescope images." The Astrophysical Journal 444 758 [10.1086/175648] [Journal Article/Letter]
1995. "The performance and calibration of WFPC2 on the Huble Space Telescope." Publications of the Astronomical Society of the Pacific 107 156 [10.1086/133533] [Journal Article/Letter]
1994. "The on-orbit performance of WFPC2." The Astrophysical Journal 435 L3 [10.1086/187580] [Journal Article/Letter]
1994. "First Hubble Space Telescope observations of the brightest stars in the Virgo galaxy M100 = NGC 4321." The Astrophysical Journal 435 L31 [10.1086/187587] [Journal Article/Letter]
1994. "Far-ultraviolet imaging of the globular cluster NGC 6681 with WFPC2." The Astrophysical Journal 435 L55 [10.1086/187593] [Journal Article/Letter]
1994. "The origin of the far-infrared luminosity within the spiral galaxy M101." The Astronomical Journal 108 1244 [10.1086/117150] [Journal Article/Letter]
1993. "A Study of the H II Region Populations of M101, M51, and NGC 4449." Publications of the Astronomical Society of the Pacific 105 124 [10.1086/133136] [Journal Article/Letter]
1992. "The H II regions of the galaxy M101." The Astronomical Journal 104 92 [10.1086/116223] [Journal Article/Letter]
1991. "The H II regions of the spiral galaxy M 101." Publications of the Astronomical Society of the Pacific 103 902 [10.1086/132904] [Journal Article/Letter]
1991. "Observation of a pulsar wind - CCD polarimetry of the Crab Nebula." The Astrophysical Journal 368 463 [10.1086/169710] [Journal Article/Letter]
1989. "Age structure of refractory interstellar dust and isotopic consequences." The Astrophysical Journal 346 531 [10.1086/168035] [Journal Article/Letter]
Non-Refereed
2009. "THEIA: Telescope for Habitable Exoplanets and Interstellar/Intergalactic Astronomy." American Astronomical Society, AAS Meeting #213, #45804; Bulletin of the American Astronomical Society, Vol 41, p362 213 362 [Full Text] [Proceedings]