Abstract
view Abstract Citations (25) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the separation by Balmer-line photometry of high and low luminosity stars having H-alpha in emission. Abt, H. A. ; Golson, J. C. Abstract Among the early-type stars found in objective-prism surveys to have lla in emission, the majority are dwarf Be stars but about 10 per cent are normal Ia supergiants, whose absolute magnitudes are about = - 7. This paper describes a search for an efficient method of separating these two groups. It is found that, with photoelectric measures using narrow-band filters centered on Ha and H , it is possible to separate from a mixed sample about two-thirds of the Be stars and two-thirds of the supergiants. Publication: The Astrophysical Journal Pub Date: February 1966 DOI: 10.1086/148513 Bibcode: 1966ApJ...143..306A full text sources ADS | data products SIMBAD (59) GCPD (1) CDS (1)
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