Mathematics – Logic
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1111..111s&link_type=abstract
PROBING STELLAR POPULATIONS OUT TO THE DISTANT UNIVERSE: CEFALU 2008, Proceedings of the International Conference. AIP Conferen
Mathematics
Logic
Stellar Clusters And Associations, Normal Galaxies, Extragalactic Objects And Systems, Star Formation
Scientific paper
ATLAS3D is a multi-wavelength, volume-limited survey of 263 morphologically-selected early-type galaxies within a distance of 42 Mpc and complete to MK<=-21.5. Here we present the ATLAS3D project and our first results on the stellar populations of galaxies in the ATLAS3D sample based on SAURON integral-field spectroscopy. We show relations between integrated line-strength indices and stellar velocity dispersion σ in the range 55<=σ(km/s)<=350. We derive simple-stellar-population-equivalent age, metallicity and α/Fe abundance ratio and discuss their relation to stellar velocity dispersion, environment and galaxy internal kinematics. These preliminary results indicate that slow rotators tend to be older and have less variation in age than fast rotators. We also find that galaxies in lower density environments are on average younger than those in denser environments, as found by other authors.
Alatalo Katherine
Blitz Leo
Bois Maxime
Bournaud Frederic
Bureau Martin
No associations
LandOfFree
Stellar populations of early-type galaxies in the ATLAS3D sample 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 Stellar populations of early-type galaxies in the ATLAS3D sample, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar populations of early-type galaxies in the ATLAS3D sample will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1109336