Spitzer View on the Downsizing Scenario of Galaxy Formation and the Role of AGN

Bibcode
2010hsa5.conf..337P
DOI
10.1007/978-3-642-11250-8_68
Pérez-González, P. G.; Alonso-Herrero, A.; Donley, J.; Rieke, G.; Barro, G.; Gallego, J.; Zamorano, J.
Bibliographical reference

Highlights of Spanish Astrophysics V, Astrophysics and Space Science Proceedings. ISBN 978-3-642-11249-2. Springer-Verlag Berlin Heidelberg, 2010, p. 337

Advertised on:
0
2010
Number of authors
7
IAC number of authors
0
Citations
0
Refereed citations
0
Description
We present the latest results of the Spitzer Cosmological Surveys concerning the characterization of the evolution of galaxies in the last 12Gyr (from z=4). We have analyzed the stellar mass function up to z=4 using a sample of more than 28,000 galaxies selected in the rest-frame near-infrared with Spitzer/IRAC. Our results confirm and quantify the downsizing scenario of galaxy formation. Based on the study of the specific Star Formation Rates (SFRs) of X-ray emitters, we discuss the role of AGN in the evolution of galaxies, arguing against the link between nuclear activity and the quenching of the star formation in massive galaxies at z<1.4.
Type
Non-refereed

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