2015ApJ...799..109J

Query : 2015ApJ...799..109J

2015ApJ...799..109J - Astrophys. J., 799, 109 (2015/January-3)

Evidence for an anhydrous carbonaceous extrasolar minor planet.

JURA M., DUFOUR P., XU S., ZUCKERMAN B., KLEIN B., YOUNG E.D. and MELIS C.

Abstract (from CDS):

Using Keck/HIRES, we report abundances of 11 different elements heavier than helium in the spectrum of Ton 345, a white dwarf that has accreted one of its own minor planets. This particular extrasolar planetesimal, which was at least 60% as massive as Vesta, appears to have been carbon-rich and water-poor; we suggest it was compositionally similar to those Kuiper Belt Objects with relatively little ice.

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Journal keyword(s): planetary systems - white dwarfs

Simbad objects: 6

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Number of rows : 6
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 GALEX J073842.6+183509 WD* 07 38 42.5662133112 +18 35 09.713206464           DBZ 67 0
4 Ton 345 WD* 08 45 39.1819378488 +22 57 28.251061956   15.2 16.07     DB 89 0
5 PG 1225-079 WD* 12 27 47.3585913504 -08 14 37.972720428   14.86 14.74 15.15   DZA4 85 0
6 GD 362 WD* 17 31 34.3168718112 +37 05 20.711767812   16.3   16.4   DAZB 200 0

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