A Caltech Library Service

Star formation and dust obscuration at z ≈ 2

Pannella, M. and Carilli, C. L. and Daddi, E. and McCracken, H. J. and Owen, F. N. and Renzini, A. and Schinnerer, E. and Smolčić, V. (2009) Star formation and dust obscuration at z ≈ 2. In: Probing Stellar Populations Out to the Distant Universe. AIP Conference Proceedings. No.1111. American Institute of Physics , Melville, NY, pp. 203-206. ISBN 978-0-7354-0648-3.

[img] PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We present preliminary results of a study aimed to constrain the star formation rate and dust content of galaxies as a function of mass at z≈ 2,, a crucial time for galaxy evolution: this is the cosmic epoch when most of the stars in the Universe are formed. We use a sample of star forming galaxies to perform a stacking analysis of their 1.4 GHz radio continuum as a function of different stellar population properties. Dust unbiased star formation rates are retrieved from radio fluxes. The main results of this work are: i) Galaxies in our sample show no downsizing pattern: specific star formation rates are constant over more than 1 dex in mass and up to the highest stellar mass probed; ii) a model independent UV dust attenuation law is provided which can be used to retrieve UV corrected SFR for extensive samples and hence a dust free cosmic star formation rate density.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Carilli, C. L.0000-0001-6647-3861
Daddi, E.0000-0002-3331-9590
McCracken, H. J.0000-0002-9489-7765
Renzini, A.0000-0002-7093-7355
Schinnerer, E.0000-0002-3933-7677
Smolčić, V.0000-0002-3893-8614
Additional Information:© 2009 American Institute of Physics. Published online 03 May 2009. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. The HST COSMOS Treasury program was supported through NASA grant HST-GO-09822. We gratefully acknowledge the contributions of the entire COSMOS collaboration consisting of more than 100 scientists (
Funding AgencyGrant Number
Subject Keywords:galaxies: formation and evolution - galaxies: star formation - galaxies: dust attenuation
Series Name:AIP Conference Proceedings
Issue or Number:1111
Classification Code:PACS: 98.62.Ai, 98.62.Ck, 98.62.Lv, 98.62.Qz
Record Number:CaltechAUTHORS:20160505-154751576
Persistent URL:
Official Citation:Star formation and dust obscuration at z≈2 Pannella, M. and Carilli, C. L. and Daddi, E. and Mc Cracken, H. J. and Owen, F. and Renzini, A. and Schinnerer, E. and Smolčić, V., AIP Conference Proceedings, 1111, 203-206 (2009), DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66699
Deposited By: George Porter
Deposited On:09 May 2016 17:45
Last Modified:11 Nov 2021 00:01

Repository Staff Only: item control page