Strong Limits on the Infrared Spectrum of HD 209458 b Near 2.2 Micron
Loading...
Date
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We present a brief summary of observations of the transiting extrasolar planet, HD 209458 b, designed to detect the secondary eclipse. We employ the method of `occultation spectroscopy', which searches in combined light (star and planet) for the disappearance and reappearance of weak infrared spectral features due to the planet as it passes behind the star and reappears. We have searched for a continuum peak near 2.2 micron (defined by CO and H2O absorption bands), as predicted by some models of the planetary atmosphere to be approximately 6E-4 of the stellar flux, but no such peak is detected at a level of about 3E-4 of the stellar flux. Our results represent the strongest limits on the infrared spectrum of the planet to date and carry significant implications for understanding the planetary atmosphere.
Brief summary of results discussed in Richardson, Deming, and Seager (2003, ApJ, 597, 581). This is a summary of a poster presented at the conference "Extrasolar Planets, Today and Tomorrow" and it will appear in the conference proceedings to be published in the ASP Conference Series in 2004
Brief summary of results discussed in Richardson, Deming, and Seager (2003, ApJ, 597, 581). This is a summary of a poster presented at the conference "Extrasolar Planets, Today and Tomorrow" and it will appear in the conference proceedings to be published in the ASP Conference Series in 2004