The study of M31’s OB associations started with Hubble’s (1929) work on NGC 206 (which he called a star cluster), as discussed in Chapter 2. More complete examination of this type of star group didn’t occur until about 30 years later. Recently, with the advent of sensitive digital detectors, optical studies of the OB associations are rapidly progressing.
KeywordsStar Formation Star Cluster Luminosity Function Star Formation Rate Magnitude Limit
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