Hot subdwarfs in the galactic bulge

G. Busso, S. Moehler, M. Zoccali, U. Heber, S. K. Yi

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Abstract

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. This is the first time that such stars have been unambiguously identified in the Galactic bulge.

Original languageEnglish
Pages (from-to)L29-L32
JournalAstrophysical Journal
Volume633
Issue number1 II
DOIs
Publication statusPublished - 2005 Nov 1

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Busso, G., Moehler, S., Zoccali, M., Heber, U., & Yi, S. K. (2005). Hot subdwarfs in the galactic bulge. Astrophysical Journal, 633(1 II), L29-L32. https://doi.org/10.1086/498212