2008ApJ...678.1436B


Query : 2008ApJ...678.1436B

2008ApJ...678.1436B - Astrophys. J., 678, 1436-1457 (2008/May-2)

Theoretical spectra and light curves of close-in extrasolar giant planets and comparison with data.

BURROWS A., BUDAJ J. and HUBENY I.

Abstract (from CDS):

We present theoretical atmosphere, spectral, and light-curve models for extrasolar giant planets (EGPs) undergoing strong irradiation for which Spitzer planet/star contrast ratios or light curves have been published (circa 2007 June). These include HD 209458b, HD 189733b, TrES-1, HD 149026b, HD 179949b, and υ And b. By comparing models with data, we find that a number of EGP atmospheres experience thermal inversions and have stratospheres. This is particularly true for HD 209458b, HD 149026b, and υ And b. This finding translates into qualitative changes in the planet/star contrast ratios at secondary eclipse and in close-in EGP orbital light curves. Moreover, the presence of atmospheric water in abundance is fully consistent with all the Spitzer data for the measured planets. For planets with stratospheres, water absorption features invert into emission features and mid-infrared fluxes can be enhanced by a factor of 2. In addition, the character of near-infrared planetary spectra can be radically altered. We derive a correlation between the importance of such stratospheres and the stellar flux on the planet, suggesting that close-in EGPs bifurcate into two groups: those with and without stratospheres. From the finding that TrES-1 shows no signs of a stratosphere, while HD 209458b does, we estimate the magnitude of this stellar flux breakpoint. We find that the heat redistribution parameter, Pn, for the family of close-in EGPs assumes values from ∼0.1 to ∼0.4. This paper provides a broad theoretical context for the future direct characterization of EGPs in tight orbits around their illuminating stars.

Abstract Copyright:

Journal keyword(s): Stars: Planetary Systems - Planets and Satellites: General - Stars: Individual: Henry Draper Number: HD 209458 - stars: individual (HD 189733) - Stars: Individual: Alphanumeric: TrES-1 - stars: individual (HD 149026) - Stars: Individual: Constellation Name: υ Andromedae - Stars: Individual: Henry Draper Number: HD 179949

Simbad objects: 54

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Number of rows : 54
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 WASP-1b Pl 00 20 40.0746033057 +31 59 23.953709844           ~ 126 1
2 * ups And b Pl 01 36 47.84216 +41 24 19.6443           ~ 263 1
3 HD 17156b Pl 02 49 44.4866941172 +71 45 11.632197644           ~ 172 1
4 HD 17156 PM* 02 49 44.4871034544 +71 45 11.629235988   8.78 8.16     F9V 159 2
5 BD+57 793b Pl 04 21 52.7044170433 +57 49 01.892074012           ~ 200 1
6 BD+57 793 * 04 21 52.7048156328 +57 49 01.889294952   10.27 9.85     F5V 143 2
7 CoRoT-1 * 06 48 19.1723766840 -03 06 07.710745140     13.6 13.44 12.88 G0V 116 2
8 CoRoT-1b Pl 06 48 19.1724141241 -03 06 07.710423478           ~ 166 1
9 BD+50 1471b Pl 07 48 06.4723053776 +50 13 32.920598923           ~ 146 1
10 BD+50 1471 PM* 07 48 06.4723053776 +50 13 32.920598923   12.002 11.138 10.669 10.243 G9V 156 1
11 OGLE-TR 211 * 10 40 14.3828284632 -62 27 20.018236464       15.24   ~ 34 1
12 OGLE-TR 132 V* 10 50 34.5943868112 -61 57 26.138690064         15.72 F 95 1
13 NAME OGLE-TR-132b Pl 10 50 34.5945727713 -61 57 26.140283621           ~ 102 1
14 NAME OGLE-TR-113b Pl 10 52 24.2808297652 -61 26 48.845891762           ~ 114 1
15 OGLE-TR 113 SB* 10 52 24.2810533560 -61 26 48.845675976     16.08 15.41 14.42 K 115 1
16 NAME OGLE-TR-111b Pl 10 53 17.8066842748 -61 24 20.606379347           ~ 110 1
17 OGLE-TR 111 V* 10 53 17.8069115424 -61 24 20.607791112     16.96 16.05 15.55 G 92 1
18 NAME OGLE-TR 182b Pl 11 09 18.7248184151 -61 05 42.963716098           ~ 35 1
19 OGLE-TR 182 * 11 09 18.7248783144 -61 05 42.962710884     16.84 16.37   ~ 34 1
20 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 580 1
21 Ross 905b Pl 11 42 11.0933874353 +26 42 23.658083337           ~ 720 1
22 HAT-P-3 * 13 44 22.5937349736 +48 01 43.205733624   12.53 11.86     K1V 75 1
23 HAT-P-3b Pl 13 44 22.5939154049 +48 01 43.206257583           ~ 83 1
24 * tau Boo b Pl 13 47 15.74340 +17 27 24.8552           ~ 262 1
25 BD+36 2593b Pl 15 19 57.9205371377 +36 13 46.737977732           ~ 73 1
26 BD+28 2507 V* 16 02 11.8462322592 +28 10 10.420201452   11.88 11.25     G1V 98 1
27 BD+28 2507b Pl 16 02 11.8463105423 +28 10 10.419642379           ~ 171 1
28 HD 147506 * 16 20 36.3576063720 +41 02 53.106772488   9.15 8.69     F8V 154 2
29 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 237 1
30 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 326 1
31 HD 149026 PM* 16 30 29.6185771608 +38 20 50.308980864   8.75 8.14     G0IV 214 1
32 NAME OGLE-TR-10b Pl 17 51 28.2589927588 -29 52 35.232998832           ~ 86 1
33 OGLE-TR 10 EB* 17 51 28.2593510544 -29 52 35.231024064     15.780 16.193 14.92 G2V 87 1
34 TrES-3 Pl 17 52 07.0185036683 +37 32 46.237002085           ~ 215 2
35 TrES-4 Pl 17 53 13.0490781575 +37 12 42.586106196           ~ 194 2
36 NAME OGLE-TR-56b Pl 17 56 35.5015759807 -29 32 21.476706712           ~ 197 1
37 OGLE-TR 56 EB* 17 56 35.5016678064 -29 32 21.479240220     16.560 16.07 15.30 ~ 165 1
38 HAT-P-5 * 18 17 37.3126923960 +36 37 17.170401468   12.92 11.95     G1V 60 1
39 HAT-P-5b Pl 18 17 37.3127577964 +36 37 17.168584830           ~ 59 1
40 BD+35 3293b Pl 18 34 31.6255913635 +35 39 41.489193276           ~ 108 1
41 NAME V672 Lyr b Pl 19 04 09.8516024106 +36 37 57.445911611           ~ 321 1
42 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 305 2
43 HD 179949 BY* 19 15 33.2300695008 -24 10 45.671448072   6.772 6.237     F8V 382 1
44 HD 179949b Pl 19 15 33.2300861317 -24 10 45.673372382           ~ 116 1
45 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 816 1
46 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1293 1
47 WASP-2b Pl 20 30 54.1279218812 +06 25 46.338261893           ~ 97 1
48 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1059 1
49 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1709 1
50 * 51 Peg b Pl 22 57 27.9804167474 +20 46 07.782240714           ~ 604 1
51 BD+37 4734B PM* 22 57 46.8442481880 +38 40 30.358351704   10.82 9.87     G0V 153 1
52 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 225 1
53 BD+41 4831b Pl 23 39 05.8101319829 +42 27 57.503480354           ~ 79 1
54 BD+41 4831 * 23 39 05.8102996968 +42 27 57.505293900   10.88 10.47     F8V 77 1

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2022.10.05-06:57:51

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