MOST Spacebased Photometry of the Transiting Exoplanet System HD 209458: III. Transit Timing to Search for Other Planets

Autor(en)

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

Abstrakt

We report on the measurement of transit times for the HD 209458 planetary system from photometry obtained with the MOST space telescope. Deviations from a constant orbital period can indicate the presence of additional planets in the system that have not yet been detected, potentially with masses approaching Earth mass. The MOST data sets of HD 209458 from 2004 and 2005 represent unprecedented time coverage with observations spanning 14 and 44 days and monitoring 2 and 13 transits, respectively. Transit times for the eclipses are being analyzed and implications for the planetary system will be discussed.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

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

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/32b757d4-20e2-45dc-a125-343bd1dc72e2