Hot Subdwarfs in the Galactic Bulge
Copyright policy )Hot Subdwarfs in the Galactic Bulge
Recent observations and theories suggest that extreme horizontal branch (EHB) stars and their progeny should be the cause of the UV excess seen in the spectra of many elliptical galaxies. Since the Galactic Bulge is the closest representation of an old, metal-rich spheroid in which we are able to study the EHB scenario in detail, we obtained spectra of bulge EHB star candidates and we confirm their status as hot evolved stars. It is the first time that such stars are unambiguously identified in the Galactic Bulge.
10 pages, 3 figures, Astrophysical Journal Letter, accepted
- University of Erlangen-Nuremberg Germany
- University of Oxford United Kingdom
- Catholic University of Santiago de Guayaquil Ecuador
- Department of Physics of Oxford University United Kingdom
- Yonsei University Korea (Republic of)
Astronomía, Astrofísica, Galaxias espirales, Astrophysics (astro-ph), FOS: Physical sciences, Galaxias - Evolución, Astrophysics, 520
Astronomía, Astrofísica, Galaxias espirales, Astrophysics (astro-ph), FOS: Physical sciences, Galaxias - Evolución, Astrophysics, 520
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