2015A&A...573A..11B

Query : 2015A&A...573A..11B

2015A&A...573A..11B - Astronomy and Astrophysics, volume 573A11-11 (2015/1-1)

The Mg I line: a new probe of the atmospheres of evaporating exoplanets.

BOURRIER V., LECAVELIER DES ETANGS A. and VIDAL-MADJAR A.

Abstract (from CDS):

Transit observations of HD209458b in the UV revealed signatures of neutral magnesium escaping the planet's upper atmosphere. The absorption detected in the Mgi line provides unprecedented information on the physical conditions at the altitude where the atmospheric blow-off takes place. Here we use a 3D model of atmospheric escape to estimate the transit absorption signatures in the Mgi line of their host stars. The detectability of these signatures depends on the brightness of the star and the escape rate of neutral magnesium. We identify a sample of potentially evaporating exoplanets that covers a wide range of stellar and planetary properties, and whose extended exospheres might be detected through Mgi line observations with current UV facilities, allowing further steps in comparative exoplanetology.

Abstract Copyright: ∼

Journal keyword(s): surveys - planets and satellites: atmospheres - methods: numerical

Simbad objects: 38

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Number of rows : 38
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 WASP-1b Pl 00 20 40.0745768856 +31 59 23.954809596           ~ 134 1
2 * tau Cet PM* 01 44 04.0831371922 -15 56 14.927607677 4.43 4.22 3.50 2.88 2.41 G8V 1354 1
3 HAT-P-32b Pl 02 04 10.2774374568 +46 41 16.212315084           ~ 198 1
4 HD 15082b Pl 02 26 51.0582618096 +37 33 01.736482032           ~ 403 1
5 HD 15082 EB* 02 26 51.0582618096 +37 33 01.736482032   8.41 8.14     kA5hA8mF4 229 1
6 WASP-78b Pl 04 15 01.5042985272 -22 06 59.103350532           ~ 55 1
7 CD-30 1812b Pl 04 25 29.0166589296 -30 36 01.610731368           ~ 104 1
8 CPD-64 484b Pl 05 48 33.5933253192 -63 59 18.388382028           ~ 73 1
9 HD 42176b Pl 06 10 39.3452642664 +30 57 25.713412668           ~ 43 1
10 HD 42176 * 06 10 39.3452642664 +30 57 25.713412668   9.23 8.71     F7V 71 1
11 WASP-12b Pl 06 30 32.7966092352 +29 40 20.263502460           ~ 847 1
12 HAT-P-24b Pl 07 15 18.0193656720 +14 15 45.408025008           ~ 47 1
13 HAT-P-9b Pl 07 20 40.4564614032 +37 08 26.342829060           ~ 73 1
14 XO-4b Pl 07 21 33.1602434760 +58 16 05.109533364           ~ 76 1
15 HAT-P-33b Pl 07 32 44.2173520776 +33 50 06.115051104           ~ 59 1
16 * rho01 Cnc b Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 267 1
17 * rho01 Cnc e Pl 08 52 35.8111044043 +28 19 50.954994470           ~ 682 1
18 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1223 1
19 BD+34 1976b Pl 09 20 24.7145388600 +33 52 56.696039796           ~ 69 1
20 BD+41 2024b Pl 09 54 34.3869331248 +40 23 16.973758176           ~ 49 1
21 WASP-31b Pl 11 17 45.3578677224 -19 03 17.217631800           ~ 143 1
22 Ross 905b Pl 11 42 11.0933350978 +26 42 23.650782778           ~ 913 1
23 Ross 905 PM* 11 42 11.0933350978 +26 42 23.650782778   12.06 10.613 10.272 8.24 M3V 750 1
24 BD+00 3088b Pl 13 41 49.0301166312 -00 07 41.032748568           ~ 30 1
25 CD-27 10695b Pl 15 59 50.9491505016 -28 03 42.312819096           ~ 313 1
26 HD 149026b Pl 16 30 29.6185771608 +38 20 50.308980864           ~ 388 1
27 TOI-2124b Pl 17 53 13.0489562760 +37 12 42.586493328           ~ 228 2
28 BD+35 3293b Pl 18 34 31.6252443960 +35 39 41.491899468           ~ 126 1
29 Kepler-20b Pl 19 10 47.5233433920 +42 20 19.301370684           ~ 123 1
30 WASP-67b Pl 19 42 58.5218345280 -19 56 58.521259680           ~ 60 1
31 HAT-P-41b Pl 19 49 17.4398486136 +04 40 20.786070360           ~ 85 1
32 HD 189733b Pl 20 00 43.7129433648 +22 42 39.073143456           ~ 1610 1
33 HD 189733 BY* 20 00 43.7129433648 +22 42 39.073143456 9.241 8.578 7.648 7.126 6.68 K2V 991 1
34 HD 209458b Pl 22 03 10.7727465312 +18 53 03.549393384           ~ 2037 1
35 HD 209458 V* 22 03 10.7727465312 +18 53 03.549393384   8.21 7.63     F9V 1193 1
36 HAT-P-40b Pl 22 22 03.0875673648 +45 27 26.518064616           ~ 30 1
37 BD+34 4779b Pl 22 52 09.8636387352 +35 26 49.608422844           ~ 85 1
38 BD+41 4831b Pl 23 39 05.8102996968 +42 27 57.505293900           ~ 94 1

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