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The form of the initial mass function in an H II complex in NGC 6946

DeGioia-Eastwood, Kathleen (1985) The form of the initial mass function in an H II complex in NGC 6946. The Astrophysical Journal, 288. pp. 175-181. ISSN 0004-637X


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Publisher’s or external URL: http://adsabs.harvard.edu/abs/1985ApJ...288..175D


Evidence is beginning to accumulate that the initial mass function (IMF) is not the same everywhere but suffers at least spatial variations. A simple model aimed at determining the slope of the IMF in a cluster of young stars is constructed. Narrow-band photometry of H II complex C in the Sc I galaxy NGC 6946 is presented, and the observations are compared with the results of the model. The regions of the complex are very young and the observations fall in an ambiguous area of the model results; thus a precise value for the IMF slope is indeterminable. The star formation rate and eficiency of massive star formation are calculated using a Salpeter IMF and are compared to the average values over the entire galaxy.

Item Type: Article
Publisher’s Statement: © 1985 The American Astronomical Society. Published in the Astrophysical Journal.
ID number or DOI: 10.1086/162777
Keywords: Astronomical Models; Astronomical photometry; blue stars; Early Stars; Electron Density (Concentration); Galaxies; Hydrogen Clouds; Nebulae; Star Clusters; Stellar Evolution; Stellar Mass; Supergiant stars
Subjects: Q Science > QB Astronomy
NAU Depositing Author Academic Status: Faculty/Staff
Department/Unit: College of Engineering, Forestry, and Natural Science > Physics and Astronomy
Date Deposited: 16 Oct 2015 20:50
URI: http://openknowledge.nau.edu/id/eprint/1339

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