2011A&A...529A.136E

Query : 2011A&A...529A.136E

2011A&A...529A.136E - Astronomy and Astrophysics, volume 529A, 136-136 (2011/5-1)

Mass-loss rates for transiting exoplanets.

EHRENREICH D. and DESERT J.-M.

Abstract (from CDS):

Exoplanets at small orbital distances from their host stars are submitted to intense levels of energetic radiations, X-rays, and extreme ultraviolet (EUV). Depending on the masses and densities of the planets and on the atmospheric heating efficiencies, the stellar energetic inputs can lead to atmospheric mass loss. These evaporation processes are observable in the ultraviolet during planetary transits. The aim of the present work is to quantify the mass-loss rates ({dot}(m)), heating efficiencies (η), and lifetimes for the whole sample of transiting exoplanets, now including hot Jupiters, hot Neptunes, and hot super-Earths. The mass-loss rates and lifetimes are estimated from an ``energy diagram'' for exoplanets, which compares the planet gravitational potential energy to the stellar X/EUV energy deposited in the atmosphere. We estimate the mass-loss rates of all detected transiting planets to be within 106 to 1013g/s for various conservative assumptions. High heating efficiencies would imply that hot exoplanets such the gas giants WASP-12b and WASP-17b could be completely evaporated within 1Gyr. We also show that the heating efficiency can be constrained when {dot}(m) is inferred from observations and the stellar X/EUV luminosity is known. This leads us to suggest that η≃100% in the atmosphere of the hot Jupiter HD 209458b, while it could be lower for HD 189733b. Simultaneous observations of transits in the ultraviolet and X-rays are necessary to further constrain the exospheric properties of exoplanets.

Abstract Copyright: ∼

Journal keyword(s): planets and satellites: general - planets and satellites: atmospheres - ultraviolet: planetary systems - ultraviolet: stars - X-rays: stars

Simbad objects: 106

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Number of rows : 106
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 WASP-26b Pl 00 18 24.7008060816 -15 16 02.275778784           ~ 46 1
2 WASP-1b Pl 00 20 40.0745768856 +31 59 23.954809596           ~ 133 1
3 HAT-P-19b Pl 00 38 04.0135699416 +34 42 41.553538560           ~ 63 1
4 HAT-P-16b Pl 00 38 17.5584024024 +42 27 47.216738232           ~ 60 1
5 HD 10069b Pl 01 37 25.0332798696 -45 40 40.374717456           ~ 369 1
6 HD 15082b Pl 02 26 51.0582618096 +37 33 01.736482032           ~ 337 1
7 HD 17156b Pl 02 49 44.4871034544 +71 45 11.629235988           ~ 184 1
8 WASP-11b Pl 03 09 28.5433589520 +30 40 24.862993356           ~ 75 1
9 HAT-P-25b Pl 03 13 44.4981245184 +25 11 50.689343148           ~ 39 1
10 WASP-22b Pl 03 31 16.3267124400 -23 49 10.840600632           ~ 48 1
11 BD+57 793b Pl 04 21 52.7048156328 +57 49 01.889294952           ~ 217 1
12 HAT-P-15b Pl 04 24 59.5350210144 +39 27 38.312978976           ~ 54 1
13 WASP-12b Pl 06 30 32.7966092352 +29 40 20.263502460           ~ 763 1
14 CoRoT-12b Pl 06 43 03.7630314144 -01 17 47.144066352           ~ 38 1
15 CoRoT-7b Pl 06 43 49.4690164104 -01 03 46.826642700           ~ 402 1
16 CoRoT-5b Pl 06 45 06.5406550272 +00 48 54.905787036           ~ 50 1
17 CoRoT-1b Pl 06 48 19.1723766840 -03 06 07.710745140           ~ 181 1
18 CoRoT-4b Pl 06 48 46.7134456728 -00 40 21.969631416           ~ 67 1
19 CoRoT-13b Pl 06 50 53.0726565720 -05 05 11.190799896           ~ 37 1
20 HAT-P-24b Pl 07 15 18.0193656720 +14 15 45.408025008           ~ 43 1
21 HAT-P-9b Pl 07 20 40.4564614032 +37 08 26.342829060           ~ 69 1
22 XO-4b Pl 07 21 33.1602434760 +58 16 05.109533364           ~ 71 1
23 HAT-P-20b Pl 07 27 39.9488720808 +24 20 11.516231112           ~ 82 1
24 XO-5b Pl 07 46 51.9614762400 +39 05 40.460854956           ~ 55 1
25 BD+50 1471b Pl 07 48 06.4723053776 +50 13 32.920598923           ~ 159 1
26 HAT-P-13b Pl 08 39 31.8072358440 +47 21 07.273799280           ~ 115 1
27 BD+34 1976b Pl 09 20 24.7145388600 +33 52 56.696039796           ~ 62 1
28 HD 80606b Pl 09 22 37.5768032712 +50 36 13.435326684           ~ 328 1
29 WASP-19b Pl 09 53 40.0765648584 -45 39 33.057187596           ~ 370 1
30 HD 233731b Pl 10 22 43.5923328528 +50 07 42.062425248           ~ 47 1
31 NAME OGLE-TR 211b Pl 10 40 14.3828284632 -62 27 20.018236464           ~ 31 1
32 NAME OGLE-TR-132b Pl 10 50 34.5943868112 -61 57 26.138690064           ~ 105 1
33 NAME OGLE-TR-113b Pl 10 52 24.2810533560 -61 26 48.845675976           ~ 119 1
34 NAME OGLE-TR-111b Pl 10 53 17.8069115424 -61 24 20.607791112           ~ 114 1
35 OGLE2-TR L9 * 11 07 55.1808382920 -61 08 46.537684260       14.60   F3 35 1
36 NAME OGLE-TR 182b Pl 11 09 18.7248783144 -61 05 42.962710884           ~ 37 1
37 HAT-P-21b Pl 11 25 05.9859193536 +41 01 40.664937216           ~ 38 1
38 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 810 1
39 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 645 1
40 WASP-25b Pl 13 01 26.3760406392 -27 31 19.922387484           ~ 46 1
41 HAT-P-3b Pl 13 44 22.5937349736 +48 01 43.205733624           ~ 100 1
42 CD-31 10766b Pl 13 55 42.7120177608 -32 09 34.616222028           ~ 72 1
43 HAT-P-12b Pl 13 57 33.4668726399 +43 29 36.601508739           ~ 176 1
44 HAT-P-26b Pl 14 12 37.5331103311 +04 03 36.116569918           ~ 162 1
45 WASP-16b Pl 14 18 43.9225013904 -20 16 31.843626168           ~ 52 1
46 BD+22 2716b Pl 14 33 06.3571702344 +21 53 40.981395876           ~ 160 1
47 WASP-37b Pl 14 47 46.5619510032 +01 03 53.799541704           ~ 33 1
48 WASP-24b Pl 15 08 51.7367171808 +02 20 35.962165104           ~ 55 1
49 BD+36 2593b Pl 15 19 57.9203617176 +36 13 46.738078788           ~ 81 1
50 Lupus-TR 3b Pl 15 30 18.6671811840 -42 58 41.663992332           ~ 19 1
51 CD-27 10695b Pl 15 59 50.9491505016 -28 03 42.312819096           ~ 261 1
52 BD+28 2507b Pl 16 02 11.8462322592 +28 10 10.420201452           ~ 184 1
53 HD 146389b Pl 16 15 50.3653280520 +10 01 57.284258556           ~ 54 1
54 HD 147506b Pl 16 20 36.3576063720 +41 02 53.106772488           ~ 253 1
55 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 351 1
56 HAT-P-18b Pl 17 05 23.1475097496 +33 00 44.940001716           ~ 118 1
57 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 720 1
58 BD+38 2917b Pl 17 20 27.8781604680 +38 14 31.908984936           ~ 82 1
59 NAME OGLE-TR-10b Pl 17 51 28.2593510544 -29 52 35.231024064           ~ 89 1
60 TrES-3 Pl 17 52 07.0184259768 +37 32 46.237377840           ~ 230 2
61 TrES-4 Pl 17 53 13.0489562760 +37 12 42.586493328           ~ 214 2
62 NAME OGLE-TR-56b Pl 17 56 35.5016678064 -29 32 21.479240220           ~ 201 1
63 SWEEPS 4 Pl 17 58 53.92 -29 11 20.6     18.80   17.70 ~ 27 1
64 SWEEPS 11 Pl 17 59 02.67 -29 11 53.5           ~ 29 1
65 HAT-P-5b Pl 18 17 37.3126923960 +36 37 17.170401468           ~ 67 1
66 BD+35 3293b Pl 18 34 31.6252443960 +35 39 41.491899468           ~ 118 1
67 CoRoT-11b Pl 18 42 44.9499236256 +05 56 15.652972716           ~ 51 1
68 CoRoT-9b Pl 18 43 08.8100358120 +06 12 14.913236808           ~ 68 1
69 CoRoT-6b Pl 18 44 17.4078666144 +06 39 47.513042100           ~ 46 1
70 Kepler-8b Pl 18 45 09.1489991376 +42 27 03.891327156           ~ 94 1
71 Kepler-9c Pl 19 02 17.7544327200 +38 24 03.176851896           ~ 99 1
72 Kepler-9d Pl 19 02 17.7544327200 +38 24 03.176851896           ~ 58 1
73 Kepler-9b Pl 19 02 17.7544327200 +38 24 03.176851896           ~ 106 1
74 Kepler-4b Pl 19 02 27.6979514832 +50 08 08.703945600           ~ 101 1
75 Kepler-10b Pl 19 02 43.0613892904 +50 14 28.701617339           ~ 297 1
76 NAME V672 Lyr b Pl 19 04 09.8515616256 +36 37 57.446680296           ~ 339 1
77 Kepler-1b Pl 19 07 14.0375836512 +49 18 59.091482160           ~ 330 2
78 Kepler-7b Pl 19 14 19.5623105760 +41 05 23.367379128           ~ 205 1
79 CoRoT-10b Pl 19 24 15.2869439208 +00 44 46.002641280           ~ 57 1
80 CoRoT-8b Pl 19 26 21.2425572360 +01 25 35.177500524           ~ 53 1
81 CoRoT-2b Pl 19 27 06.4944378024 +01 23 01.359897468           ~ 236 1
82 CoRoT-3b Pl 19 28 13.2642131544 +00 07 18.613986132           ~ 137 1
83 BD+47 2846b Pl 19 28 59.3538826128 +47 58 10.217007804           ~ 377 1
84 Kepler-6b Pl 19 47 20.9379557640 +48 14 23.759029608           ~ 102 1
85 BD+47 2936b Pl 19 50 50.2472976936 +48 04 51.101390496           ~ 416 1
86 Kepler-5b Pl 19 57 37.6884643560 +44 02 06.189718884           ~ 101 1
87 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1436 1
88 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 896 1
89 HAT-P-23b Pl 20 24 29.7234392904 +16 45 43.811510112           ~ 71 1
90 WASP-2b Pl 20 30 54.1282355304 +06 25 46.341284844           ~ 108 1
91 HD 197286b Pl 20 44 10.2208462488 -39 13 30.855881604           ~ 70 1
92 HAT-P-17b Pl 21 38 08.7310010424 +30 29 19.446386748           ~ 82 1
93 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 1859 1
94 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1115 1
95 BD+34 4779b Pl 22 52 09.8636387352 +35 26 49.608422844           ~ 81 1
96 NAME BD+37 4734Bb Pl 22 57 46.8442481880 +38 40 30.358351704           ~ 247 1
97 WASP-21b Pl 23 09 58.2534443016 +18 23 45.885822792           ~ 65 1
98 WASP-6b Pl 23 12 37.7368282608 -22 40 26.273805024           ~ 138 1
99 WASP-10b Pl 23 15 58.3006181424 +31 27 46.296056268           ~ 111 1
100 WASP-4b Pl 23 34 15.0857248317 -42 03 41.047972591           ~ 174 1
101 K2-1b Pl 23 34 27.8814904872 -01 34 48.110067912           ~ 43 1
102 BD+41 4831b Pl 23 39 05.8102996968 +42 27 57.505293900           ~ 88 1
103 CD-40 15273b Pl 23 51 31.0839097560 -39 54 24.258188484           ~ 77 1
104 WASP-5b Pl 23 57 23.7564672192 -41 16 37.743700800           ~ 97 1
105 CD-35 16019b Pl 23 59 36.0711872328 -35 01 52.923618408           ~ 129 0
106 NAME Galactic Bulge reg ~ ~           ~ 4299 0

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