Structure and stellar populations in early-type galaxies

Details Structure and stellar populations in early-type galaxies Structure and stellar populations in early-type galaxies

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004ogci.conf..505v&link_type=abstract

Outskirts of Galaxy Clusters: Intense Life in the Suburbs. Edited by Antonaldo Diaferio, IAU Colloquium #195, p.505-507

Physics

Scientific paper

We explore possible correlations between the light profile shapes of early-type galaxies, as parameterized by the Sérsic index n, and relevant stellar population parameters, which were obtained from spectra of extremely high signal-to-noise and stellar population models that provide an age indicator that is virtually free of the effects of metallicity. We do not find any robust correlation between n and mean age or metallicity. However, we find evidence for a strong positive correlation between n and [Mg/Fe] abundance ratio. We speculate that early-type galaxies settle up their structure on short time-scales in agreement with those imposed by their [Mg/Fe] ratios, suggesting that the global structure was already at place at high z.

Affiliated with

Also associated with

No associations

Rating

Structure and stellar populations in early-type galaxies 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 Structure and stellar populations in early-type galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure and stellar populations in early-type galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1728643