Analysis of Secondary Eclipse Observations of Hot-Jupiters WASP-26b and CoRoT-1b
Abstract
WASP-26b is a hot-Jupiter planet that orbits an early G star every 2.7566 days at a distance of 0.03985 AU. Using the Spitzer Space Telescope in 2010 as a part of the Spitzer Exoplanet Target of Opportunity program (program 60003) we observed two secondary eclipses of the planet, one in the 3.6 μm channel on 7 September and one in the 4.5 μm channel on 3 August. We also reanalize archival Spitzer data of CoRoT-1b, which is another hot Jupiter orbiting a G star every 1.5089686 days at a distance of 0.0254 AU, in the 3.6 and 4.5 μm channels. The eclipse depths for WASP-26b are 0.00117 ± 0.00012 and 0.001507 ± 0.00016, for the 3.6 and 4.5 μm channels respectively. The eclipse depths for CoRoT-1b are 0.0047 ± 0.0003 and 0.0046 ± 0.0004 respecitvely. We also refine their orbits using our own secondary eclipse measurements in combination with external radial-velocity and transit observations from both professional and amateur observers. Using our Bayesian Atmostpheric Radiative Transfer code, we characterize the atmospheres of these planets. Spitzer is operated by the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA. This work was supported by NASA Planetary Atmospheres grant NNX12AI69G and NASA Astrophysics Data Analysis Program grant NNX13AF38G. Blecic holds a NASA Earth and Space Science Fellowship.
- Publication:
-
American Astronomical Society Meeting Abstracts #227
- Pub Date:
- January 2016
- Bibcode:
- 2016AAS...22721204D