2009AJ....137.3191J

Query : 2009AJ....137.3191J

2009AJ....137.3191J - Astron. J., 137, 3191-3197 (2009/February-0)

Six white dwarfs with circumstellar silicates.

JURA M., FARIHI J. and ZUCKERMAN B.

Abstract (from CDS):

Spitzer Space Telescope spectra reveal 10 µm silicate emission from circumstellar dust orbiting six externally polluted white dwarfs. Micron-size glasses with an olivine stoichiometry can account for the distinctively broad wings that extend to 12 µm; these particles likely are produced by tidal disruption of asteroids. The absence of infrared polycyclic aromatic hydrocarbon features is consistent with a scenario where extrasolar rocky planets are assembled from carbon-poor solids.

Abstract Copyright: ∼

Journal keyword(s): minor planets, asteroids - planetary systems - white dwarfs

CDS comments: In tab.1 EC 11507-153 (WD 1150-503) is a misprint for EC 11507-1519 (WD 1150-153).

Simbad objects: 17

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Number of rows : 17
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 Wolf 88 WD* 01 48 56.7965896608 +19 02 27.484961100   15.5   15.4   DAZB 68 0
2 BD+20 307 SB* 01 54 50.3440413288 +21 18 22.461011784   9.57 9.01     G0 113 0
3 GD 40 WD* 03 02 53.1037481136 -01 08 33.798683976   15.479 15.384     DBZ4 187 0
4 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
5 HD 23514 * 03 46 38.3922026460 +22 55 11.199934340 9.95 9.93 9.43 8.96 8.84 F5V 157 0
6 GD 56 WD* 04 11 02.1686667960 -03 58 22.586865708   15.64 15.50 15.1   DA3.3 92 0
7 Ton 345 WD* 08 45 39.1819378488 +22 57 28.251061956   15.2 16.07     DB 89 0
8 PG 1015+161 WD* 10 18 03.8273436048 +15 51 58.566029940   15.596 15.607 16.000   DA2.5 92 0
9 GD 133 WD* 11 19 12.3988618680 +02 20 33.045927216   14.734 14.617 14.855   DA4.0 107 0
10 EC 11507-1519 WD* 11 53 15.2581290960 -15 36 36.506488428   16.16 16.00 15.9   DA4.0 61 0
11 GALEX J122859.9+104032 WD* 12 28 59.9341604496 +10 40 33.045988944           DAZe: 152 0
12 HD 113766 ** 13 06 35.83622 -46 02 02.0178           F3/5V 112 0
13 EGGR 298 WD* 14 58 06.4884482642 +29 37 29.515263565   15.86   15.3   DA6.8 99 0
14 PG 1457-086 WD* 14 59 52.9901145672 -08 49 29.645894676   15.68 15.77 15.8   DA2.3 51 0
15 GD 362 WD* 17 31 34.3168718112 +37 05 20.711767812   16.3   16.4   DAZB 200 0
16 LAWD 84 WD* 21 19 36.5325585235 -55 50 14.465412588 13.94 14.50 14.27 14.5   DA5.1 96 0
17 V* ZZ Psc WD* 23 28 47.6365087803 +05 14 54.235051503   13.217   13.106   DA4.1 536 0

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