U
Ulrich Heber
Researcher at University of Erlangen-Nuremberg
Publications - 274
Citations - 7550
Ulrich Heber is an academic researcher from University of Erlangen-Nuremberg. The author has contributed to research in topics: Stars & Subdwarf. The author has an hindex of 45, co-authored 266 publications receiving 6703 citations. Previous affiliations of Ulrich Heber include University of Kiel.
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Hot Subdwarf Stars
TL;DR: The discovery of an sdO star unbound to the Galaxy, potential SN Ia progenitors and probably a hidden population of neutron stars or black hole companions have great impact on astrophysics at large.
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The binary fraction of extreme horizontal branch stars
TL;DR: In this article, the authors used radial velocity measurements of subdwarf-B stars from the Palomar-Green catalogue to look for binary extreme horizontal branch (EHB) stars.
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Hot subluminous stars
TL;DR: Spectroscopic analyses of blue horizontal branch stars, subluminous B- and O-stars are reviewed in this paper, where the resulting atmospheric parameters and abundances are used to obtain constraints on the evolutionary status of different classes of stars.
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US 708 – an unbound hyper-velocity subluminous O star
TL;DR: In this paper, the discovery of an unbound hyper-velocity star, US 708, in the Milky Way halo, with a heliocentric radial velocity of +708 ± 15 km s -1.
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Hot subluminous stars
TL;DR: In this paper, the mass distribution in the Hertzsprung-Russell diagram of He-rich vs. He-poor hot subdwarf stars of the globular clusters omega Cen and NGC~2808 differ from that of their field counterparts.