GROUND-BASED DETECTIONS OF THERMAL EMISSION FROM CoRoT-1b AND WASP-12b

作者：Zhao Ming^*; Monnier John D; Swain Mark R; Barman Travis; Hinkley Sasha

来源：Astrophysical Journal, 2012, 744(2): 122.

DOI：10.1088/0004-637X/744/2/122

• infrared: planetary systems
• planetary systems
• stars: individual (CoRoT-1, WASP-12)

We report a new detection of the H-band thermal emission of CoRoT-1b and two confirmation detections of the Ks-band thermal emission of WASP-12b at secondary eclipses. The H-band measurement of CoRoT-1b shows an eclipse depth of 0.145% +/- 0.049% with a 3 sigma percentile between 0.033% and 0.235%. This depth is consistent with the previous conclusions that the planet has an isothermal region with inefficient heat transport from day side to night side, and has a dayside thermal inversion layer at high altitude. The two Ks-band detections of WASP-12b show a joint eclipse depth of 0.299% +/- 0.065%. This result agrees with the measurement of Croll & collaborators, providing independent confirmation of their measurement. The repeatability of the WASP-12b measurements also validates our data analysis method. Our measurements, in addition to a number of previous results made with other telescopes, demonstrate that ground-based observations are becoming widely available for characterization of atmospheres of hot Jupiters.

• 出版日期2012-1-10