2020A&A...639A..36B


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.11CEST09:36:26

2020A&A...639A..36B - Astronomy and Astrophysics, volume 639A, 36-36 (2020/7-1)

A transition between the hot and the ultra-hot Jupiter atmospheres.

BAXTER C., DESERT J.-M., PARMENTIER V., LINE M., FORTNEY J., ARCANGELI J., BEAN J.L., TODOROV K.O. and MANSFIELD M.

Abstract (from CDS):

A key hypothesis in the field of exoplanet atmospheres is the trend of atmospheric thermal structure with planetary equilibrium temperature. We explore this trend and report here the first statistical detection of a transition in the near-infrared atmospheric emission between hot and ultra-hot Jupiters. We measure this transition using secondary eclipse observations and interpret this phenomenon as changes in atmospheric properties, and more specifically in terms of transition from non-inverted to inverted thermal profiles. We examine a sample of 78 hot Jupiters with secondary eclipse measurements at 3.6 and 4.5µm measured with Spitzer Infrared Array Camera. We calculate the planetary brightness temperatures using PHOENIX models to correct for the stellar flux. We measure the deviation of the data from the blackbody, which we define as the difference between the observed 4.5µm eclipse depth and that expected at this wavelength based on the brightness temperature measured at 3.6µm. We study how the deviation between 3.6 and 4.5µm changes with theoretical predictions with equilibrium temperature and incoming stellar irradiation. We reveal a clear transition in the observed emission spectra of the hot Jupiter population at 1660±100K in the zero albedo, full redistribution equilibrium temperature. We find the hotter exoplanets have even hotter daysides at 4.5µm compared to 3.6µm, which manifests as an exponential increase in the emitted power of the planets with stellar insolation. We propose that the measured transition is a result of seeing carbon monoxide in emission due to the formation of temperature inversions in the atmospheres of the hottest planets. These thermal inversions could be caused by the presence of atomic and molecular species with high opacities in the optical and/or the lack of cooling species. Our findings are in remarkable agreement with a new grid of 1D radiative and convective models varying metallicity, carbon to oxygen ratio (C/O), surface gravity, and stellar effective temperature. We find that the population of hot Jupiters statistically disfavors high C/O planets (C/O≥0.85).

Abstract Copyright: © ESO 2020

Journal keyword(s): planets and satellites: atmospheres - planets and satellites: composition - planets and satellites: gaseous planets - surveys - techniques: photometric

Simbad objects: 82

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Number of rows : 82

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 WASP-1b Pl 00 20 40.0746033057 +31 59 23.953709844           ~ 120 1
2 HAT-P-19b Pl 00 38 04.0136161838 +34 42 41.552260901           ~ 47 1
3 HD 10069b Pl 01 37 25.0335097438 -45 40 40.376513381           ~ 250 1
4 CD-56 324b Pl 01 38 25.0566798190 -55 46 19.526723475           ~ 11 0
5 BD+01 316b Pl 01 46 31.8576707085 +02 42 02.033178181           ~ 69 0
6 HAT-P-32b Pl 02 04 10.2775457769 +46 41 16.210382751           ~ 96 1
7 HD 15082b Pl 02 26 51.0582746497 +37 33 01.737746137           ~ 222 1
8 BD-07 436A PM* 02 28 37.2275829401 -07 03 38.378689023   11.07 10.29     G8 22 1
9 WASP-78b Pl 04 15 01.5043965171 -22 06 59.103918835           ~ 27 1
10 BD+57 793b Pl 04 21 52.7044170433 +57 49 01.892074012           ~ 179 1
11 CD-30 1812b Pl 04 25 29.0168304676 -30 36 01.610961515           ~ 52 1
12 CPD-64 356b Pl 04 35 50.3302174829 -64 01 37.332771736           ~ 19 0
13 CPD-64 484b Pl 05 48 33.5937810570 -63 59 18.386834103           ~ 36 1
14 HD 42176 * 06 10 39.3452456624 +30 57 25.717178081   9.23 8.71     F7V 44 1
15 HD 42176b Pl 06 10 39.3452456624 +30 57 25.717178081           ~ 27 1
16 CD-38 2551b Pl 06 17 20.7486066719 -38 19 23.754191460           ~ 29 1
17 WASP-12b Pl 06 30 32.7966788910 +29 40 20.266334158           G0 593 1
18 CPD-23 1329b Pl 06 33 24.2672798716 -23 29 10.296975033           ~ 24 0
19 WASP-64b Pl 06 44 27.6052132708 -32 51 30.178710998           ~ 15 1
20 CoRoT-1b Pl 06 48 19.1724141241 -03 06 07.710423478           ~ 156 1
21 CD-38 3220b Pl 07 10 24.0606039387 -39 05 50.570553937           ~ 142 0
22 XO-4b Pl 07 21 33.1602110129 +58 16 05.111704885           ~ 53 1
23 HAT-P-20b Pl 07 27 39.9487418539 +24 20 11.518276475           ~ 58 1
24 HAT-P-33b Pl 07 32 44.2170736940 +33 50 06.118002888           ~ 33 1
25 BD+50 1471b Pl 07 48 06.4726006390 +50 13 32.921121328           ~ 135 1
26 BD+06 1909b Pl 08 15 47.9805310385 +05 50 12.352063199           ~ 36 1
27 HAT-P-13b Pl 08 39 31.8073600797 +47 21 07.275628863           ~ 90 1
28 WASP-36b Pl 08 46 19.2977797896 -08 01 37.012684040           ~ 30 1
29 WASP-65b Pl 08 53 17.8286747380 +08 31 22.811264443           ~ 13 2
30 WASP-19b Pl 09 53 40.0764883458 -45 39 33.055979403           ~ 283 1
31 BD+41 2024b Pl 09 54 34.3870731862 +40 23 16.978979299           ~ 25 1
32 WASP-43b Pl 10 19 38.0089444408 -09 48 22.603103969           ~ 237 1
33 WASP-104b Pl 10 42 24.6020578066 +07 26 06.294613167           ~ 14 0
34 CD-52 4998b Pl 12 21 17.9260345313 -52 50 26.999496779           ~ 11 0
35 HAT-P-3b Pl 13 44 22.5939154049 +48 01 43.206257583           ~ 74 1
36 HD 122173b Pl 14 00 46.4447791056 -30 35 00.837656212           ~ 12 0
37 HAT-P-26b Pl 14 12 37.5329989220 +04 03 36.117671696           ~ 115 1
38 WASP-39b Pl 14 29 18.4151765921 -03 26 40.203046112           ~ 107 1
39 BD+22 2716b Pl 14 33 06.3573673505 +21 53 40.982782397           ~ 129 1
40 WASP-24b Pl 15 08 51.7366806893 +02 20 35.964406086           ~ 40 1
41 BD+36 2593b Pl 15 19 57.9205371377 +36 13 46.737977732           ~ 66 1
42 BD+28 2507b Pl 16 02 11.8463105423 +28 10 10.419642379           ~ 162 1
43 HD 147506b Pl 16 20 36.3579144486 +41 02 53.109043943           ~ 218 1
44 HD 149026b Pl 16 30 29.6184841164 +38 20 50.310893575           ~ 305 1
45 WASP-103b Pl 16 37 15.5753608801 +07 11 00.119024745           ~ 108 1
46 HAT-P-18b Pl 17 05 23.1475847690 +33 00 44.939145027           ~ 68 1
47 TrES-3 Pl 17 52 07.0185036683 +37 32 46.237002085           ~ 200 2
48 TrES-4 Pl 17 53 13.0490781575 +37 12 42.586106196           ~ 185 2
49 NAME OGLE-TR-56b Pl 17 56 35.5015759807 -29 32 21.476706712           ~ 195 1
50 Kepler-12b Pl 19 04 58.4220911942 +50 02 25.271416732           ~ 70 1
51 Kepler-1b Pl 19 07 14.0379171930 +49 18 59.090895318           ~ 290 2
52 NAME BD+46 2629Ab Pl 19 07 53.1396671301 +46 52 05.931203366           ~ 122 1
53 WASP-48b Pl 19 24 38.9615585228 +55 28 23.331729234           ~ 40 1
54 CoRoT-2b Pl 19 27 06.4944821296 +01 23 01.357597206           ~ 193 1
55 BD+47 2846b Pl 19 28 59.3538131541 +47 58 10.216250846           ~ 298 1
56 WASP-67b Pl 19 42 58.5217085119 -19 56 58.523005452           ~ 39 1
57 Kepler-6b Pl 19 47 20.9379174935 +48 14 23.759506909           ~ 89 1
58 HAT-P-41b Pl 19 49 17.4399552361 +04 40 20.783585782           ~ 30 1
59 Kepler-17b Pl 19 53 34.8642919207 +47 48 54.049941399           ~ 82 1
60 Kepler-5b Pl 19 57 37.6884816070 +44 02 06.189528905           ~ 90 1
61 HD 189733b Pl 20 00 43.7130382888 +22 42 39.071811263           ~ 1167 1
62 WASP-80b Pl 20 12 40.1691752075 -02 08 39.191157456           ~ 70 1
63 Qatar 1b Pl 20 13 31.6176375816 +65 09 43.490914045           ~ 49 1
64 BD-01 3943b Pl 20 18 09.3209296034 -01 04 32.610392746           ~ 20 0
65 HAT-P-23b Pl 20 24 29.7235032857 +16 45 43.810322954           ~ 49 1
66 WASP-2b Pl 20 30 54.1279218812 +06 25 46.338261893           ~ 91 1
67 HD 195689b Pl 20 31 26.3534038246 +39 56 19.765154336           ~ 128 0
68 NAME CD-34 14724Ab Pl 20 55 07.9445087070 -34 08 08.007683146           ~ 19 0
69 CD-34 14724A PM* 20 55 07.9445087070 -34 08 08.007683146   10.74 10.05 10.17 9.774 F8 36 0
70 BD-05 5432b Pl 21 00 06.1969250596 -05 05 40.037007561           ~ 61 1
71 WASP-46b Pl 21 14 56.8596386903 -55 52 18.460013390           ~ 33 1
72 HAT-P-17b Pl 21 38 08.7311406378 +30 29 19.445574063           ~ 60 1
73 HD 209458b Pl 22 03 10.7729598762 +18 53 03.548248479           ~ 1567 1
74 HAT-P-40b Pl 22 22 03.0875821831 +45 27 26.515961773           ~ 15 1
75 BD+34 4779b Pl 22 52 09.8635559135 +35 26 49.606963112           ~ 66 1
76 NAME BD+37 4734Bb Pl 22 57 46.8443014981 +38 40 30.355384717           ~ 209 1
77 WASP-6b Pl 23 12 37.7368657624 -22 40 26.277489164           ~ 106 1
78 WASP-10b Pl 23 15 58.3005497925 +31 27 46.294728182           ~ 95 1
79 WASP-4b Pl 23 34 15.0858223039 -42 03 41.049468209           ~ 131 1
80 BD+41 4831b Pl 23 39 05.8101319829 +42 27 57.503480354           ~ 71 1
81 WASP-5b Pl 23 57 23.7565609528 -41 16 37.745589460           ~ 78 1
82 CD-35 16019b Pl 23 59 36.0711854449 -35 01 52.923483315           ~ 100 0

    Equat.    Gal    SGal    Ecl

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2021.05.11-09:36:26

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