Abundance analysis of DAZ white dwarfs
Solar and Stellar Astrophysics
2015-05-20 v1
Abstract
We present an abundance analysis of a sample of 33 hydrogen-rich (DA) white dwarfs. We have used archival high-resolution spectra to measure abundances of calcium, magnesium and iron in a set of 30 objects. In addition, we present preliminary calcium abundances in three new white dwarfs based on low-dispersion spectra. We investigate some abundance ratios (Mg/Ca, Fe/Ca) that may help uncover the composition of the accretion source.
Keywords
Cite
@article{arxiv.1012.2639,
title = {Abundance analysis of DAZ white dwarfs},
author = {Adela Kawka and Stephane Vennes and Frantisek Dinnbier and Helena Cibulkova and Peter Nemeth},
journal= {arXiv preprint arXiv:1012.2639},
year = {2015}
}
Comments
Part of PlanetsbeyondMS/2010 proceedings http://arxiv.org/html/1011.6606