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The NASA EPOXI mission of opportunity to gather ultraprecise photometry of known transiting exoplanets

Published online by Cambridge University Press:  01 May 2008

Jessie L. Christiansen ,
David Charbonneau ,
Michael F. A'Hearn ,
Drake Deming ,
Matthew J. Holman ,
Sarah Ballard ,
David T. F. Weldrake ,
Richard K. Barry ,
Marc J. Kuchner  and
Timothy A. Livengood
...Show all authors
Jessie L. Christiansen
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA email: [email protected]
David Charbonneau
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA email: [email protected]
Michael F. A'Hearn
Affiliation:
University of Maryland, College Park, MD 20742, USA
Drake Deming
Affiliation:
Goddard Space Flight Center, Greenbelt, MD 20771, USA
Matthew J. Holman
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA email: [email protected]
Sarah Ballard
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA email: [email protected]
David T. F. Weldrake
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA email: [email protected]
Richard K. Barry
Affiliation:
Goddard Space Flight Center, Greenbelt, MD 20771, USA
Marc J. Kuchner
Affiliation:
Goddard Space Flight Center, Greenbelt, MD 20771, USA
Timothy A. Livengood
Affiliation:
Goddard Space Flight Center, Greenbelt, MD 20771, USA
Jeffrey Pedelty
Affiliation:
Goddard Space Flight Center, Greenbelt, MD 20771, USA
Alfred Schultz
Affiliation:
Goddard Space Flight Center, Greenbelt, MD 20771, USA
Tilak Hewagama
Affiliation:
University of Maryland, College Park, MD 20742, USA
Jessica M. Sunshine
Affiliation:
University of Maryland, College Park, MD 20742, USA
Dennis D. Wellnitz
Affiliation:
University of Maryland, College Park, MD 20742, USA
Don L. Hampton
Affiliation:
University of Alaska Fairbanks, Fairbanks, AK 99775, USA
Carey M. Lisse
Affiliation:
Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, USA
Sara Seager
Affiliation:
Massachusetts Institute of Technology, Cambridge, MA 02159, USA
Joseph F. Veverka
Affiliation:
Cornell University, Space Sciences Dept, Ithaca, NY 14853, USA
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Abstract

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The NASA Discovery mission EPOXI, utilizing the Deep Impact flyby spacecraft, comprises two phases: EPOCh (Extrasolar Planet Observation and Characterization) and DIXI (Deep Impact eXtended Investigation). With EPOCh, we use the 30-cm high resolution visible imager to obtain ultraprecise photometric light curves of known transiting planet systems. We will analyze these data for evidence of additional planets, via transit timing variations or transits; for planetary moons or rings; for detection of secondary eclipses and the constraint of geometric planetary albedos; and for refinement of the system parameters. Over a period of four months, EPOCh observed four known transiting planet systems, with each system observed continuously for several weeks. Here we present an overview of EPOCh, including the spacecraft and science goals, and preliminary photometry results.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 301 - 307
Copyright
Copyright © International Astronomical Union 2009

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