2008ApJ...684.1427M

Query : 2008ApJ...684.1427M

2008ApJ...684.1427M - Astrophys. J., 684, 1427-1432 (2008/September-2)

Thermal emission of exoplanet XO-1b.

MACHALEK P., McCULLOUGH P.R., BURKE C.J., VALENTI J.A., BURROWS A. and HORA J.L.

Abstract (from CDS):

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 µm with 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, as by Burrows and colleagues, is refined. The substellar point flux from the parent star at XO-1b of ∼0.49x109 erg/cm2/s sets a new lower limit for the occurrence of a thermal inversion in a planetary atmosphere.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: Eclipsing - Infrared: Stars - Stars: Planetary Systems - stars: individual (XO-1)

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * ups And b Pl 01 36 47.8415443907 +41 24 19.651368029           ~ 284 1
2 BD+57 793 * 04 21 52.7048156328 +57 49 01.889294952   10.27 9.85     F5V 170 2
3 BD+57 793b Pl 04 21 52.7048156328 +57 49 01.889294952           ~ 234 1
4 BD+50 1471 PM* 07 48 06.4723053776 +50 13 32.920598923   12.002 11.138 10.669 10.243 G9V 203 1
5 BD+50 1471b Pl 07 48 06.4723053776 +50 13 32.920598923           ~ 170 1
6 NAME OGLE-TR-132b Pl 10 50 34.5943868112 -61 57 26.138690064           ~ 105 1
7 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
8 2MASS J16020133+2809268 * 16 02 01.3377584448 +28 09 26.843002200           ~ 1 0
9 BD+28 2507 V* 16 02 11.8462322592 +28 10 10.420201452   11.88 11.25     G1V 118 1
10 BD+28 2507b Pl 16 02 11.8462322592 +28 10 10.420201452           ~ 195 1
11 2MASS J16021311+2809004 * 16 02 13.1153143440 +28 09 00.465252372           ~ 9 0
12 TYC 2041-186-1 SB* 16 02 17.9563491168 +28 13 32.649237516   12.40 11.63     K0V 3 0
13 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 388 1
14 NAME OGLE-TR-56b Pl 17 56 35.5016678064 -29 32 21.479240220           ~ 202 1
15 NAME V672 Lyr b Pl 19 04 09.8515616256 +36 37 57.446680296           ~ 354 1
16 Kepler-1 Em* 19 07 14.0375836512 +49 18 59.091482160   11.85 11.25     G0V 195 2
17 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 349 2
18 HD 179949b Pl 19 15 33.2300695008 -24 10 45.671448072           ~ 135 1
19 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 991 1
20 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
21 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1
22 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1193 1

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