ROSAT EUV and soft X-ray studies of atmospheric composition and structure in G191-B2B

Details ROSAT EUV and soft X-ray studies of atmospheric composition and structure in G191-B2B ROSAT EUV and soft X-ray studies of atmospheric composition and structure in G191-B2B

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.260..631b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 260, no. 3, p. 631-634.

Astronomy and Astrophysics

Astronomy

18

Rosat Mission, Stellar Atmospheres, Stellar Composition, Ultraviolet Astronomy, White Dwarf Stars, X Ray Astronomy, Extreme Ultraviolet Radiation, Opacity, Photosphere, Spaceborne Astronomy, Stellar Models

Scientific paper

Previous studies of the hot DA white dwarf GI91-B2B have been unable to determine whether the observed soft X-ray and EUV opacity arises from a stratified hydrogen and helium atmosphere or from the presence of trace metals in the photosphere. New EUV and soft X-ray photometry of this star, made with the ROSAT observatory, when analyzed in conjunction with the earlier data, shows that the stratified models cannot account for the observed fluxes. Consequently, we conclude that trace metals must be a substantial source of opacity in the photosphere of G191-B2B.

Affiliated with

Also associated with

No associations

Rating

ROSAT EUV and soft X-ray studies of atmospheric composition and structure in G191-B2B does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with ROSAT EUV and soft X-ray studies of atmospheric composition and structure in G191-B2B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ROSAT EUV and soft X-ray studies of atmospheric composition and structure in G191-B2B will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1275913