Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-26T05:07:54.507Z Has data issue: false hasContentIssue false
  • English
  • Français

Spectroscopic analyses of HdBe stars

Published online by Cambridge University Press:  26 May 2016

C.S. Jeffery
C.S. Jeffery*
Affiliation:
Dept of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, FIFE KY16 9SS, Scotland

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A few hydrogen-deficient B stars (or extreme helium stars: EHes) exhibit Be-type behaviour (the HdBe stars). The principal class members are BD −9°4395, LSE 78 and DY Cen. The hot RCrB stars MV Sgr and V348 Sgr and the hot EHes HD 160641 and LSS 5121 are related to these objects. Since there are wide abundance variations amongst the EHes, as well as wide variations in Be-type behaviour, the principal HdBes have been analysed for atmospheric parameters, including Teff, log g and composition.

Type
5. Be Stars: Spectroscopy and Photometry
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 331 - 332
Copyright
Copyright © Kluwer 1994 

References

Heber, U.: 1983, AA 118, 39 Google Scholar
Jeffery, C.S.: 1993, AA , in press Google Scholar
Jeffery, C.S., Heber, U.: 1992, AA 260, 133 Google Scholar
Jeffery, C.S., Heber, U.: 1993, AA 270, 167 Google Scholar
Jeffery, C.S., Heber, U., Hill, P.W., Pollacco, D.: 1988, MNRAS 231, 175 Google Scholar
Leuenhagen, U., Hamann, W.-R.: 1993a, AA , submitted Google Scholar
Leuenhagen, U., Heber, U., Jeffery, C.S.: 1993b, AAS , in press Google Scholar
Peters, G.J.: 1976, ApJS 65, 95 Google Scholar
Schönberner, D., Wolf, R.E.A.: 1974, AA 37, 87 Google Scholar
Walker, H.J., Schönberner, D.: 1981, AA 97, 291 Google Scholar