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HST/FGS High-Speed Photometric Observations of Transits of HD 209458b

Published online by Cambridge University Press:  19 September 2017

William F. Welsh ,
A. B. Schultz ,
W. Kinzel ,
M. Kochte ,
I. Jordan ,
F. Hamilton ,
F. Bruhweiler ,
H. Hart ,
D.P. Hamilton  and
G. Henry
...Show all authors
William F. Welsh
Affiliation:
San Diego State University, 5500 Campanile Drive, San Diego, CA 92182, U.S.A.
A. B. Schultz
Affiliation:
CSC/STScI
W. Kinzel
Affiliation:
CSC/STScI
M. Kochte
Affiliation:
CSC/STScI
I. Jordan
Affiliation:
CSC/STScI
F. Hamilton
Affiliation:
CSC/STScI
F. Bruhweiler
Affiliation:
IACS/CUA
H. Hart
Affiliation:
CSC/JHU
D.P. Hamilton
Affiliation:
UMD
G. Henry
Affiliation:
TSU
C. Miskey
Affiliation:
GSFC
M. Rodrigue
Affiliation:
UNR
D. Bennum
Affiliation:
UNR
J. Rassuchine
Affiliation:
UNR
A. Storrs
Affiliation:
Towson U.
S. Vogt
Affiliation:
UCSD
J. A. Orosz
Affiliation:
SDSU
R. Wittenmyer
Affiliation:
SDSU

Abstract

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We present preliminary analysis of new HST observations of the transiting extrasolar planet HD 209458b. Photometric observations were obtained with the Fine Guidance Sensor (FGS) on the Hubble Space Telescope (HST), providing milli-mag precision and high time resolution (40 Hz). The FGS photometry allows us to derive precise stellar/orbital parameters (ephemeris, inclination, limb darkening) and planetary radius, and also allows a search for the presence of planetary rings and satellites. We discuss preliminary results and two approaches to modelling the observations.

Type
Extrasolar Planets
Information
Symposium - International Astronomical Union , Volume 213: Bioastronomy 2002: Life Among the stars , 2004 , pp. 89 - 92
Copyright
Copyright © Astronomical Society of the Pacific 2004 

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