CAOSP abstracts, Volume: 27, No.: 3, year: 1998
- Author(s): HUBRIG, S.; BERGHOFER, T.W.; MATHYS, G.
- Journal: Contributions of the Astronomical Observatory Skalnate Pleso,
vol. 27, no. 3, p. 464-466.
- Date: 04/1998
- Title: HgMn stars as apparent X-ray emitters
- Keyword(s): X-RAY SOURCES, HGMN STARS
- Pages: 464 -- 466
Abstract:
In the ROSAT all-sky survey 11 HgMn stars were detected as soft X-ray
emitters. Prior to ROSAT, X-ray observations with the Einstein Observatory had
suggested that stars in the spectral range B5-A7 are devoid of X-ray
emission. Since there is no X-ray emitting mechanism available for these stars
(also not for HgMn stars), the usual argument in the case of an X-ray
detected star of this spectral type is the existence of an unseen low-mass
companion which is responsible for the X-ray emission. The purpose of the
present work is to use all available data for our sample of X-ray detected
HgMn stars and conclude on the nature of possible companions.
Full text version of this article in
PostScript
(600dpi) format compressed by gzip; or in
PDF.
