Title: The initial mass function for massive stars
Abstract: view Abstract Citations (379) References (49) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The initial mass function for massive stars. Garmany, C. D. ; Conti, P. S. ; Chiosi, C. Abstract A machine readable catalog of over 750 galactic O stars with published photometry, spectral types, and luminosity classes has been compiled. The catalog is probably complete to a distance of about 2.5 kpc. From this volume-limited data, the initial mass function (IMF) for stars more massive than 20 solar masses has been derived. This IMF differs from that of Miller and Scalo (1979) and of Lequeux (1979), in having proportionately more O type stars and not as steep a fall-off in number of stars with increasing mass. Dividing the sample into stars inside and outside the solar circle, a substantial difference in the IMF of the most massive stars is found. There are proportionally more toward the galactic center. This gradient in the IMF may be related to the observed space density of Wolf-Rayet stars, which are descendants of O type stars. Publication: The Astrophysical Journal Pub Date: December 1982 DOI: 10.1086/160548 Bibcode: 1982ApJ...263..777G Keywords: Astronomical Catalogs; Milky Way Galaxy; O Stars; Star Distribution; Stellar Mass; Supermassive Stars; Wolf-Rayet Stars; Hertzsprung-Russell Diagram; Mass To Light Ratios; Stellar Evolution; Stellar Luminosity; Stellar Spectra; Ubv Spectra; Astrophysics full text sources ADS | data products SIMBAD (402) CDS (2) Related Materials (1) Catalog: 1994yCat.2082....0G
Publication Year: 1982
Publication Date: 1982-12-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 185
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