Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21733515h&link_type=abstract
American Astronomical Society, AAS Meeting #217, #335.15; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Understanding the formation and properties of massive galaxies allows us to constrain models of galaxy formation. In the ΛCDM framework, massive galaxies are assumed to form by a combination of dry mergers at z < 1 and AGN feedback. A third of the present day brightest cluster galaxies are expected to have built up half their mass since z = 0.5.
We introduce our new project which aims to examine a well-defined sample of massive galaxies at 0.1 < z < 0.4, selected from the SDSS database. Optical HST/ACS imaging as well as Gemini/GMOS spectroscopy has been obtained for our objects. Due to the high signal-to-noise of the galaxy spectra, we are able to perform a detailed study of the kinematics and stellar populations of the galaxies. We will present the fundamental plane as well as accurate new measurements of the internal dynamics for our sample.
Fritz Alexander
Hoenig Michael D.
Schiavon Ricardo P.
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