MOST spacebased photometry of the transiting exoplanet system HD 209458: I. Albedo Measurements of an Extrasolar Planet

Autor(en)

Jason F. Rowe, Jaymie M. Matthews, Sara Seager, Rainer Kuschnig, David B. Guenther, Anthony F J Moffat, Slavek M. Rucinski, Dimitar Sasselov, Gordon A. H. Walker, Werner Wolfgang Weiss

Abstrakt

We present space-based photometry of the transiting exoplanetary system HD 209458 obtained by the MOST (\textit{Microvariablity and Oscillations of STars}) satellite. MOST has observed the system with 14 day and 44 day observing runs separated by one year. We will report on observations and analysis for secondary eclipse detection in this system. We present reduced photometry and its implications for the depth of the eclipse which in turn is translated into an optical albedo (or an albedo upper limit) of the exoplanet. We discuss the implications of the albedo for constraining planet atmosphere and cloud models.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

University of British Columbia (UBC), Carnegie Institution for Science, Saint Mary's University, Université de Montréal, University of Toronto, Harvard-Smithsonian Center for Astrophysics

Journal

Bulletin of the American Astronomical Society

Band

37

Seiten

1339

ISSN

0002-7537

Publikationsdatum

2005

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/4e7e420b-7d2f-4a3a-ad72-9e9a6bf769db