Other
Scientific paper
May 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...316..763d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 316, May 15, 1987, p. 763-770.
Other
1
H Alpha Line, Stellar Spectra, Subdwarf Stars, Ultraviolet Spectra, B Stars, Binary Stars, Iue, Stellar Models, Stellar Temperature
Scientific paper
During the course of a survey for ultraviolet-excess objects, a group of objects were found that spectroscopically resemble the subdwarf B stars, except for variable strength H-alpha absorption. The H-alpha line can have the nominal strength predicted from the other Balmer lines, or it can be completely absent. Observations reveal significant changes in the H-alpha profile on both a night-to-night and month-to-month basis. IUE observations of three stars reveal few features in the ultraviolet region and, when combined with optical data, allow a rough determination of photospheric temperatures. A binary model is proposed for these systems, and the ramifications of the objects found here and in the Palomar-Green survey are discussed.
No associations
LandOfFree
The stars with H-alpha missing 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 The stars with H-alpha missing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The stars with H-alpha missing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-857069