A Ground-Based Search for L Band Thermal Emission from TrES-1

Details A Ground-Based Search for L Band Thermal Emission from TrES-1 A Ground-Based Search for L Band Thermal Emission from TrES-1

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..366..259k&link_type=abstract

Transiting Extrapolar Planets Workshop ASP Conference Series, Vol. 366, Proceedings of the conference held 25-28 September, 2006

Astronomy and Astrophysics

Astronomy

Scientific paper

Recent observations using the Spitzer Space Telescope have detected the thermal emission from several transiting planets, including TrES-1. \citet{char05} found that the 4.5 µ eclipse depth for TrES-1 was smaller than expected; theoretical models predict that hot Jupiters like TrES-1 should have a strong peak in their emission at 4 µ. We followed up this initial Spitzer measurement with spectral observations of the secondary eclipse of TrES-1 in L band using NIRI on Gemini North, which allowed us to create a bandpass centered on the predicted 4 µ peak. The simultaneous observation of a second star allows us to calibrate out time-dependent variations in the common-mode terrestrial atmospheric absorption and seeing effects. We obtained a series of 758 spectra spanning two secondary eclipses of TrES-1 and present the preliminary results of our analysis in this poster.

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