1999MNRAS.302L..49V

Query : 1999MNRAS.302L..49V

1999MNRAS.302L..49V - Mon. Not. R. Astron. Soc., 302, L49-L52 (1999/January-3)

The new magnetic/non-magnetic double degenerate system EUVE J1439+75.0.

VENNES S., FERRARIO L. and WICKRAMASINGHE D.T.

Abstract (from CDS):

Optical spectroscopy of the extreme ultraviolet source EUVE J1439 + 75.0 revealed a new unresolved double degenerate system. The system is composed of two hot white dwarfs (Teff≥ 20, 000 K), one magnetic (<B≳ 10 MG) and the other apparently non-magnetic. Surface gravity measurements imply masses of ∼ 1.0 and ∼ 0.9 M☉ for the magnetic and non-magnetic white dwarfs, respectively. Proposed radial velocity and spectro-polarimetric studies may help uncover evidence of past interactions and clarify the evolutionary status of the pair.

Abstract Copyright: 1998, Royal Astronomical Society

Journal keyword(s): stars: individual: EUVE J1439+75.0 - stars: magnetic fields - white dwarfs

Simbad objects: 9

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Number of rows : 9
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 LAWD 10 WD* 01 37 59.3936818351 -04 59 44.668541360   13.20 12.83 12.8   DA+D1 191 0
2 V* CL Oct WD* 03 17 15.8468594712 -85 32 25.558244556   13.78 13.66 15.19   DAP 180 1
3 LB 9802 WD* 03 17 19.1282833488 -85 32 31.288377552   13.78 13.66 14.43   DA 141 1
4 RX J0823.6-2525 WD* 08 23 34.6655665968 -25 25 14.953058544   16.7   15.9   DA1.2 37 1
5 PG 0922+162A WD* 09 25 13.5000090888 +16 01 44.361174756   15.29   16.73   DA2.0 29 0
6 PG 0945+246 ** 09 48 46.6405381296 +24 21 25.877233728   14.14 14.25 14.50 14.47 DA+DXP 69 0
7 WG 15 WD* 09 58 54.9418463856 -66 53 10.179562092   14.40 14.60     DA1.8 65 0
8 HS 1440+7518 WD* 14 40 05.1341163672 +75 05 33.787957776   15.1 15.3 15.2   DA1 59 0
9 PG 1658+441 WD* 16 59 48.4241073768 +44 01 04.038522204   14.3 14.6     DAP1.6 156 0

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