Thermal Emission of Exoplanet XO-1b
| dc.creator | Machalek, Pavel | |
| dc.creator | McCullough, Peter R. | |
| dc.creator | Burke, Christopher J. | |
| dc.creator | Valenti, Jeff A. | |
| dc.creator | Burrows, Adam | |
| dc.creator | Hora, Joseph L. | |
| dc.date | 2008-05-16 | |
| dc.date.accessioned | 2026-07-07T10:01:35Z | |
| dc.date.available | 2026-07-07T10:01:35Z | |
| dc.description | We estimate flux ratios of the extrasolar planet XO-1b to its host star XO-1 at 3.6, 4.5, 5.8 and 8.0 microns with the IRAC on the Spitzer Space Telescope to be 0.00086 +/- 0.00007, 0.00122 +/- 0.00009, 0.00261 +/- 0.00031 and 0.00210 +/- 0.00029, respectively. The fluxes are inconsistent with a canonical cloudless model for the thermal emission from a planet and suggest an atmosphere with a thermal inversion layer and a possible stratospheric absorber. A newly emerging correlation between the presence of a thermal inversion layer in the planetary atmosphere and stellar insolation of the planet (Burrows et al. 2007b) is refined. The sub-stellar point flux from the parent star at XO-1b of ~ 0.49 x 10^9 erg cm^-2 s^-1 sets a new lower limit for the occurrence of a thermal inversion in a planetary atmosphere. | |
| dc.description | 7 pages, 4 figures, 2 tables, accepted for publication to ApJ | |
| dc.identifier | https://arxiv.org/abs/0805.2418 | |
| dc.identifier | http://arxiv.org/abs/0805.2418 | |
| dc.identifier | 2008ApJ...684.1427M | |
| dc.identifier | doi:10.1086/590140 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/168679 | |
| dc.subject | Astrophysics | |
| dc.title | Thermal Emission of Exoplanet XO-1b | |
| dc.type | text |