Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...350...73b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 350, Feb. 10, 1990, p. 73-88.
Astronomy and Astrophysics
Astronomy
69
Galactic Bulge, Galactic Structure, Infrared Astronomy, Spiral Galaxies, Star Formation, Astronomical Photometry, Brightness Distribution, Elliptical Galaxies, Stellar Color
Scientific paper
Optical and infrared photometry of about 35 S0 disks and bulges has been acquired. Comparison to model colors suggests that the disks are 3-5 Gyr younger than the bulges. In some extreme cases, evidence of AGB light is found, indicating that star formation was active as little as 2-3 Gyr ago. This extended period of formation for S0 disks provides the most natural explanation for the prevalence of blue galaxies observed in intermediate redshift clusters of galaxies. The preponderance of S0 galaxies in nearby clusters indicates that they probably were born in that environment and experienced a star formation history that was either terminated by astration or by the process of cluster virialization.
Bothun Gregory D.
Gregg Michael D.
No associations
LandOfFree
The mean ages of S0 disks - Evidence for star formation 5 gigayears ago does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The mean ages of S0 disks - Evidence for star formation 5 gigayears ago, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The mean ages of S0 disks - Evidence for star formation 5 gigayears ago will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1841414