Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20919505n&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #195.05; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
We present a comprehensive view of star formation since z 1 in massive field galaxies. For 3000 galaxies in the All Wavelength Extended Groth Strip Survey" (AEGIS), we combine UV-to-IR star formation rate tracers, stellar masses, quantitative HST morphologies and rest-frame photometry.
Star-forming galaxies form a distinct "Main Sequence", with a narrow range of star formation rates at a given mass and redshift. The range of star formation (1) limits the amplitude of episodic star formation; (2) constrains the effect of major mergers; (3) shows that a gradual decrease of star formation in most galaxies dominated since z 1, not a decrease of strong starbursts; (4) shows Luminous Infrared galaxies at z 1 to be mostly normal star-forming galaxies, not strong bursts.
This gradual decrease of star formation can be reproduced by a model of gas exhaustion with timescales increasing to less massive galaxies, quantifying mass depencencies of star formation histories. The data and models also indicate a new picture of "staged galaxy formation", where the onset of major star formation shifts to lower redshifts for less massive galaxies.
AEGIS Collaboration
Noeske Kai
No associations
LandOfFree
History and Modes of Star Formation since z 1 in Field Galaxies: A New Picture from the AEGIS Collaboration 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 History and Modes of Star Formation since z 1 in Field Galaxies: A New Picture from the AEGIS Collaboration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and History and Modes of Star Formation since z 1 in Field Galaxies: A New Picture from the AEGIS Collaboration will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1163345