Letter to the Editor
Metals in the variable DA G29-38 *
Received 20 February 1997 / Accepted 10 March 1997
We report the detection of the heavy elements Ca, Mg, Fe in the atmosphere of the variable DA white dwarf G29-38. The abundance of Ca can be understood only if accretion from interstellar matter is going on currently at a high rate. This lends support also to the interpretation of the observed infrared excess as due to heated circumstellar material, from which the accretion onto the star takes place.
Key words: stars: white dwarfs - stars: abundances - stars: G29-38
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© European Southern Observatory (ESO) 1997
Online publication: June 30, 1998