Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...235...22j&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 235, no. 1-2, Aug. 1990, p. 22-34.
Astronomy and Astrophysics
Astrophysics
17
Cosmology, Galactic Clusters, Spiral Galaxies, Star Distribution, Starburst Galaxies, Astronomical Spectroscopy, Chemical Evolution, Galactic Evolution, Metallicity, Star Formation
Scientific paper
Published observational data on the Abell 370 cluster of galaxies are analyzed statistically using a population-synthesis method based on the integrated spectral properties of star clusters. The data sets and analysis techniques are described, and the results are presented in extensive tables and graphs and characterized in detail. Five groups of objects are identified on the basis of color, two associated with blue galaxies (B1 and B2) and three associated with red galaxies (R1, R2, and R3). The R1 and R2 objects are found to be the results of galactic mergers, while R3 represents giant elliptical galaxies; the objects in B1 and B2 are typical of late spiral galaxies and regions of recent (5 Myr ago) bursts of star formation, respectively.
Alloin Danielle
Bica Eduardo
Jablonka Pascale
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