Hot subdwarfs in the Galactic bulge

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

Research output: Contribution to journalArticle

Abstract

Recent observations and theories suggest that extreme horizontal branch (EHB) stars and their progeny should be the cause of the UV excess that many elliptical galaxies show in their spectra. 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 observed in the Galactic bulge.

Original languageEnglish
Pages (from-to)25-31
Number of pages7
JournalBaltic Astronomy
Volume15
Issue number1
Publication statusPublished - 2006 May 18

Fingerprint

horizontal branch stars
galactic bulge
progeny
hot stars
spheroids
elliptical galaxies
stars
causes
metal
metals

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. (2006). Hot subdwarfs in the Galactic bulge. Baltic Astronomy, 15(1), 25-31.
Busso, G. ; Moehler, S. ; Zoccali, M. ; Heber, U. ; Yi, S. K. / Hot subdwarfs in the Galactic bulge. In: Baltic Astronomy. 2006 ; Vol. 15, No. 1. pp. 25-31.
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Busso, G, Moehler, S, Zoccali, M, Heber, U & Yi, SK 2006, 'Hot subdwarfs in the Galactic bulge', Baltic Astronomy, vol. 15, no. 1, pp. 25-31.

Hot subdwarfs in the Galactic bulge. / Busso, G.; Moehler, S.; Zoccali, M.; Heber, U.; Yi, S. K.

In: Baltic Astronomy, Vol. 15, No. 1, 18.05.2006, p. 25-31.

Research output: Contribution to journalArticle

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Busso G, Moehler S, Zoccali M, Heber U, Yi SK. Hot subdwarfs in the Galactic bulge. Baltic Astronomy. 2006 May 18;15(1):25-31.