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

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

2015A&A...573A..11B - Astronomy and Astrophysics, volume 573A, 11-11 (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

Full paper

View the references in ADS

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 - 2022	#notes
1	WASP-1b	Pl	00 20 40.0746033057	+31 59 23.953709844						~	124	1
2	* tau Cet	PM*	01 44 04.0831371922	-15 56 14.927607677	4.43	4.22	3.50	2.88	2.41	G8V	1171	1
3	HAT-P-32b	Pl	02 04 10.2775457769	+46 41 16.210382751						~	112	1
4	HD 15082	dS*	02 26 51.0582618096	+37 33 01.736482032		8.41	8.14			kA5hA8mF4	168	1
5	HD 15082b	Pl	02 26 51.0582746497	+37 33 01.737746137						~	270	1
6	WASP-78b	Pl	04 15 01.5043965171	-22 06 59.103918835						~	36	1
7	CD-30 1812b	Pl	04 25 29.0168304676	-30 36 01.610961515						~	63	1
8	CPD-64 484b	Pl	05 48 33.5937810570	-63 59 18.386834103						~	47	1
9	HD 42176b	Pl	06 10 39.3452456624	+30 57 25.717178081						~	33	1
10	HD 42176	*	06 10 39.3452642664	+30 57 25.713412668		9.23	8.71			F7V	49	1
11	WASP-12b	Pl	06 30 32.7966788910	+29 40 20.266334158						G0	660	1
12	HAT-P-24b	Pl	07 15 18.0194123517	+14 15 45.409653547						~	31	1
13	HAT-P-9b	Pl	07 20 40.4562402899	+37 08 26.342807726						~	55	1
14	XO-4b	Pl	07 21 33.1602110129	+58 16 05.111704885						~	57	1
15	HAT-P-33b	Pl	07 32 44.2170736940	+33 50 06.118002888						~	40	1
16	* rho01 Cnc	PM*	08 52 35.8111044043	+28 19 50.954994470	7.45	6.82		5.4		K0IV-V	1036	1
17	* rho01 Cnc e	Pl	08 52 35.8113282132	+28 19 50.956901366						~	486	1
18	* rho01 Cnc b	Pl	08 52 35.8113282132	+28 19 50.956901366						~	242	1
19	BD+34 1976b	Pl	09 20 24.7143829845	+33 52 56.699778302						~	50	1
20	BD+41 2024b	Pl	09 54 34.3870731862	+40 23 16.978979299						~	32	1
21	WASP-31b	Pl	11 17 45.3578468391	-19 03 17.216528280						~	107	1
22	Ross 905	PM*	11 42 11.0933350978	+26 42 23.650782778		12.06	10.613	10.272	8.24	M3V	568	1
23	Ross 905b	Pl	11 42 11.0933874353	+26 42 23.658083337						~	700	1
24	BD+00 3088b	Pl	13 41 49.0301976803	-00 07 41.033730455						~	16	1
25	CD-27 10695b	Pl	15 59 50.9489706053	-28 03 42.309432433						~	218	1
26	HD 149026b	Pl	16 30 29.6184841164	+38 20 50.310893575						~	321	1
27	TrES-4	Pl	17 53 13.0490781575	+37 12 42.586106196						~	191	2
28	BD+35 3293b	Pl	18 34 31.6255913635	+35 39 41.489193276						~	106	1
29	Kepler-20b	Pl	19 10 47.5234815840	+42 20 19.299357667						~	99	1
30	WASP-67b	Pl	19 42 58.5217085119	-19 56 58.523005452						~	45	1
31	HAT-P-41b	Pl	19 49 17.4399552361	+04 40 20.783585782						~	44	1
32	HD 189733	BY*	20 00 43.7129433648	+22 42 39.073143456	9.241	8.578	7.648	7.126	6.68	K2V	799	1
33	HD 189733b	Pl	20 00 43.7130382888	+22 42 39.071811263						~	1253	1
34	HD 209458	V*	22 03 10.7727465312	+18 53 03.549393384		8.21	7.63			F9V	1042	1
35	HD 209458b	Pl	22 03 10.7729598762	+18 53 03.548248479						~	1666	1
36	HAT-P-40b	Pl	22 22 03.0875821831	+45 27 26.515961773						~	21	1
37	BD+34 4779b	Pl	22 52 09.8635559135	+35 26 49.606963112						~	71	1
38	BD+41 4831b	Pl	23 39 05.8101319829	+42 27 57.503480354						~	76	1

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