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Spectral analysis of PG 1034+001, the exciting star of Hewett 1

Published online by Cambridge University Press:  30 August 2012

Marin Mahsereci ,
Ellen Ringat ,
Thomas Rauch ,
Klaus Werner  and
Jeffrey W. Kruk
Marin Mahsereci
Affiliation:
Institute for Astronomy and Astrophysics, Kepler Center for Astro and Particle Physics, Eberhard Karls University, Sand 1, 72076 Tübingen, Germany email: maren.mahsereci@astro.uni-tuebingen.de
Ellen Ringat
Affiliation:
Institute for Astronomy and Astrophysics, Kepler Center for Astro and Particle Physics, Eberhard Karls University, Sand 1, 72076 Tübingen, Germany email: maren.mahsereci@astro.uni-tuebingen.de
Thomas Rauch
Affiliation:
Institute for Astronomy and Astrophysics, Kepler Center for Astro and Particle Physics, Eberhard Karls University, Sand 1, 72076 Tübingen, Germany email: maren.mahsereci@astro.uni-tuebingen.de
Klaus Werner
Affiliation:
Institute for Astronomy and Astrophysics, Kepler Center for Astro and Particle Physics, Eberhard Karls University, Sand 1, 72076 Tübingen, Germany email: maren.mahsereci@astro.uni-tuebingen.de
Jeffrey W. Kruk
Affiliation:
NASA Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A.
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Abstract

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PG 1034+001 is an extremely hot, helium-rich DO-type star that excites the planetary nebula Hewett 1 and large parts of the surrounding interstellar medium. We present preliminary results of an ongoing spectral analysis by means of non-LTE model atmospheres that consider most elements from hydrogen to nickel. This analysis is based on high-resolution ultraviolet (FUSE, IUE) and optical (VLT/UVES, Keck) data. The results are compared with those of PG 1034+001's spectroscopic twin, the DO star PG 0038+199.

Keywords

stars: abundancesstars: AGB and post-AGBstars: atmospheresstars: evolutionstars: individual (PG 1034+001, PG 0038+199)planetary nebulae: individual (Hewett 1)

References

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