SIMBAD references

2010MNRAS.404L..40V - Mon. Not. R. Astron. Soc., 404, L40-L44 (2010/May-1)

The heavily polluted atmosphere of the DAZ white dwarf GALEX J193156.8+011745.

VENNES S., KAWKA A. and NEMETH P.

Abstract (from CDS):

We report on the discovery of a new heavily polluted white dwarf. The DAZ white dwarf GALEX J193156.8+011745 was identified in a joint Galaxy Evolution Explorer (GALEX)/GSC survey of ultraviolet-excess objects. Optical spectra obtained at ESO New Technology Telescope show strong absorption lines of magnesium and silicon, and a detailed abundance analysis based on Very Large Telescope-Kueyen UVES spectra reveal super-solar abundances of silicon and magnesium and near-solar abundances of oxygen, calcium and iron. The overall abundance pattern bears the signature of on-going accretion on to the white dwarf atmosphere. The infrared spectral energy distribution shows an excess in the H and K bands likely associated with the accretion source.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): stars: abundance - stars: individual: GALEX J193156.8+011745 - white dwarfs

Nomenclature: [VKN2010] GALEX J193156.8+011745 N=1.

Status at CDS:  

Simbad objects: 12

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2020.03.28-22:20:02

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