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arXiv · 0708.3510

The young stellar population of NGC 4214 as observed with HST. II. Results

Leonardo Úbeda·J. Maíz-Apellániz·John MacKenty
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Abstract

We present the results of a detailed UV-optical study of the nearby dwarf starburst galaxy NGC 4214 using multifilter HST/WFPC2+STIS photometry. The stellar extinction is found to be quite patchy, with some areas having values of E(4405-5495)< 0.1 mag and others, associated with star forming regions, much more heavily obscured, a result which is consistent with previous studies of the nebular extinction. We determined the ratio of blue-to-red supergiants and found it to be consistent with theoretical models for the metallicity of the SMC. The stellar IMF of the field in the range 20-100 solar masses is found to be steeper than Salpeter. A number of massive clusters and associations with ages between a few and 200 million years are detected and their properties are discussed.

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Leonardo Úbeda, J. Maíz-Apellániz, John MacKenty. 2007-08-26. The young stellar population of NGC 4214 as observed with HST. II. Results. https://doi.org/10.1086/509503

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