METALS IN THE VARIABLE DA G29-38

Authors
KOESTER D PROVENCAL J SHIPMAN HL
Citation
D. Koester et al., METALS IN THE VARIABLE DA G29-38, Astronomy and astrophysics, 320(3), 1997, pp. 57-59
Citations number
16
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
320
Issue
3
Year of publication
1997
Pages
57 - 59
Database
ISI
SICI code
0004-6361(1997)320:3<57:MITVDG>2.0.ZU;2-K
Abstract
We report the detection of the heavy elements Ca, Mg, Fe in the atmosp here of the variable DA white dwarf G29-38. The abundance of Ca can be understood only if accretion from interstellar matter is going on cur rently at a high rate. This lends support also to the interpretation o f the observed infrared excess as due to heated circumstellar material , from which the accretion onto the star takes place.