Properties of luminous spheroids at redshifts z ~ 1 from Keck and HST

Details Properties of luminous spheroids at redshifts z ~ 1 from Keck and HST Properties of luminous spheroids at redshifts z ~ 1 from Keck and HST

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..245..379k&link_type=abstract

Formation and Evolution of Galaxy Bulges, Proceedings of the International Astronomical Union, IAU Symposium, Volume 245, p. 379

Physics

Optics

1

Galaxies: Bulges, Galaxies: Evolution, Galaxies: High-Redshift, Galaxies: Photometry, Galaxies: Interactions, Galaxies: Kinematics, Surveys, Techniques: High Angular Resolution

Scientific paper

Three new and still on-going surveys that combine the power of spectroscopy or adaptive optics from the Keck Telescopes with HST images are DEEP, AEGIS, and CATS. The advantages of each for the study of distant bulges are accompanied by a few highlights. We find that the vast fraction of luminous distant bulges appear very red, independent of the bulge luminosity, bulge fraction, disk color, and environment. Yet early-type galaxies appear to be relatively young at redshifts z ~ 1, are less numerous then, host many X-ray AGN's with some that are highly obscured, and have low but increasing dry-dry and dry-wet merger rates over time.

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