2005A&A...439.1159D


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.15CET12:27:16

2005A&A...439.1159D - Astronomy and Astrophysics, volume 439, 1159-1163 (2005/9-1)

A near-IR spectrum of the DO white dwarf RE J0503-285.

DOBBIE P.D., BURLEIGH M.R., LEVAN A.J., BARSTOW M.A., NAPIWOTZKI R. and HUBENY I.

Abstract (from CDS):

We present a near-IR spectroscopic analysis of the intriguing DO white dwarf RE J0503-285. The IR spectrum fails to reveal evidence of the presence of a spatially unresolved, cool, late-type companion. Hence we have placed an approximate limit on the spectral-type and mass of a putative companion (later than M8, M<0.085M). This result rules out ongoing interaction between the white dwarf and a close companion with M≥0.085M as responsible for the discrepancies between the observed photospheric abundances and model predictions. As the possibility remains that there is a cooler companion lying beyond the detection threshold of this study we use our modelling to estimate the improvement in sensitivity offered by a Spitzer observation.

Abstract Copyright:

Journal keyword(s): stars: white dwarfs - stars: atmospheres - stars: binaries: spectroscopic - stars: individual: RE J0503-285

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 - 2020
#notes
1 DENIS J025503.3-470049 BD* 02 55 03.6945042584 -47 00 51.345365454     22.921 19.906 17.454 L9 120 0
2 RX J0503.9-2854 WD* 05 03 55.5147387403 -28 54 34.631014015 12.29 13.55 13.58     DO 89 0
3 HD 42044 PM* 06 07 07.7834701071 -31 53 50.753186866   8.44 7.91     F7V 20 0
4 V* IN CMa No* 07 20 47.9110068282 -31 47 02.732886173           DAO+dM 86 0
5 RX J1016.4-0520 WD* 10 16 28.6043781785 -05 20 35.222043934     14.1     DAO+Me 101 0
6 RX J2013.1+4002 WD* 20 13 09.3685301695 +40 02 24.240184767     14.6     DAO+M2/3e 85 1

    Equat.    Gal    SGal    Ecl

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2019.11.15-12:27:16

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