2012ApJ...751L...4M

Query : 2012ApJ...751L...4M

2012ApJ...751L...4M - Astrophys. J., 751, L4 (2012/May-3)

Gaseous material orbiting the polluted, dusty white dwarf He 1349-2305.

MELIS C., DUFOUR P., FARIHI J., BOCHANSKI J., BURGASSER A.J., PARSONS S.G., GANSICKE B.T., KOESTER D. and SWIFT B.J.

Abstract (from CDS):

We present new spectroscopic observations of the polluted, dusty, helium-dominated atmosphere white dwarf star HE 1349-2305. Optical spectroscopy reveals weak Ca II infrared triplet emission indicating that metallic gas debris orbits and is accreted by the white dwarf. Atmospheric abundances are measured for magnesium and silicon while upper limits for iron and oxygen are derived from the available optical spectroscopy. HE 1349-2305 is the first gas disk-hosting white dwarf star identified among previously known polluted white dwarfs. Further characterization of the parent body polluting this star will require ultraviolet spectroscopy.

Abstract Copyright: ∼

Journal keyword(s): circumstellar matter - planet-star interactions - stars: abundances - stars: individual: HE 1349-2305 - white dwarfs

Simbad objects: 13

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Number of rows : 13
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 GD 40 WD* 03 02 53.1037481136 -01 08 33.798683976   15.479 15.384     DBZ4 187 0
2 GD 61 WD* 04 38 39.3740627256 +41 09 32.353957332 13.801 14.767 14.879 14.932 14.970 DBAZ3 112 0
3 HD 289002 * 06 45 13.3725491952 +02 08 14.685250596 10.06 10.62 10.44     B1 277 0
4 GALEX J073842.6+183509 WD* 07 38 42.5662133112 +18 35 09.713206464           DBZ 67 0
5 CD-32 5613 WD* 08 41 32.4290850497 -32 56 32.915823461   12.07 11.85 12.3   DA5.5 325 0
6 Ton 345 WD* 08 45 39.1819378488 +22 57 28.251061956   15.2 16.07     DB 89 0
7 SDSS J095904.69-020047.6 WD* 09 59 04.6971277717 -02 00 47.634624567           DAZ 35 0
8 GALEX J104341.5+085558 WD* 10 43 41.5313708256 +08 55 58.340933400           DAZ 70 0
9 GALEX J122859.9+104032 WD* 12 28 59.9341604496 +10 40 33.045988944           DAZe: 152 0
10 HD 119752 PM* 13 45 36.8912239248 -26 06 57.636899388   5.814 5.795     A0V 42 0
11 HD 120467 PM* 13 49 44.8063802009 -22 06 39.931905725 10.69 9.427 8.166 7.394 6.777 K6Va 139 1
12 HE 1349-2305 WD* 13 52 44.1241675416 -23 20 05.386384320   17.9 16.3 16.6   DBAZ 43 0
13 CD-38 10980 WD* 16 23 33.8380498896 -39 13 46.161043572 9.916 10.885 11.029 10.936 10.841 DA2 526 0

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