A4 Refereed article in a conference publication
White Dwarfs with Carbon Dominated Atmoshpere: New Observations and Analysis
Authors: Dufour P, Vornanen T, Bergeron P, Fontaine, Berdyugin A
Editors: Krzesinski I, Stachowski G, Moskalik P, Bajan K
Publication year: 2013
Book title : 18th European White Dwarf Workshop
Series title: ASP Conference Series
Volume: 469
First page : 167
ISBN: 978-1-58381-820-6
eISBN: 978-1-58381-821-3
Abstract
White dwarf stars with a surface composition completely dominated by carbon and oxygen, the so-called Hot DQs, are found to be magnetic in an extremely high proportion. Here we present new high-resolution spectroscopic observations with the VLT and try to determine whether all Hot DQs could be magnetic at some level. We also discuss further the idea that most, if not all, white dwarfs showing either CI or CII atomic absorption lines in the optical may form a continuos sequence of massive white stars.
White dwarf stars with a surface composition completely dominated by carbon and oxygen, the so-called Hot DQs, are found to be magnetic in an extremely high proportion. Here we present new high-resolution spectroscopic observations with the VLT and try to determine whether all Hot DQs could be magnetic at some level. We also discuss further the idea that most, if not all, white dwarfs showing either CI or CII atomic absorption lines in the optical may form a continuos sequence of massive white stars.
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