Starbursts, blue stragglers, and binary stars in local superclusters and groups. II - The old disk and halo populations

Details Starbursts, blue stragglers, and binary stars in local superclusters and groups. II - The old disk and halo populations Starbursts, blue stragglers, and binary stars in local superclusters and groups. II - The old disk and halo populations

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97..431e&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, Feb. 1989, p. 431-457.

Astronomy and Astrophysics

Astronomy

105

Blue Stars, Cepheid Variables, Eclipsing Binary Stars, Star Formation, Starburst Galaxies, Stellar Spectrophotometry, Main Sequence Stars, Open Clusters, Star Clusters, Star Distribution, Stellar Luminosity, Stellar Winds

Scientific paper

A study of the distribution in the HR diagram of stars in several old-disk population aggregates and in several halo-population aggregates indicates that the blue straggler phenomenon is ubiquitous. In all the cases considered, several stars are found to lie far from the locus defined by a semiempirical isochrone that best fits the distribution of the bulk of the stars in the aggregate. The results support the starburst interpretation of blue stragglers in young-disk aggregates.

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