X-Ray and Radio Emission from Ultraviolet-selected Star-forming Galaxies at Redshifts 1.5 ≲ z ≲ 3.0 in the GOODS-North Field

We have examined the stacked radio and X-ray emission from UV-selected galaxies spectroscopically confirmed to lie in the redshift range 1.5 ≲ z ≲ 3.0 in the Great Observatories Origins Deep Survey-North field to determine their average extinction and star formation rates (SFRs). The X-ray and radio data are obtained from the Chandra 2 Ms survey and the Very Large Array, respectively. There is a good agreement among the X-ray, radio, and dereddened UV estimates of the average SFR for our sample of z ~ 2 galaxies of ~50 M☉ yr-1, indicating that the locally calibrated SFR relations appear to be statistically valid in the redshift range 1.5 ≲ z ≲ 3.0. We find that UV-estimated SFRs (uncorrected for extinction) underestimate the bolometric SFRs as determined from the 2-10 keV X-ray luminosity by a factor of ~4.5-5.0 for galaxies over a large range in redshift, 1.0 ≲ z ≲ 3.5.

[1]  C. Steidel,et al.  Star-Forming Galaxies in the 'Redshift Desert' , 2004, astro-ph/0401061.

[2]  Max Pettini,et al.  Optical Selection of Star-forming Galaxies at Redshifts 1 < z < 3 , 2004, astro-ph/0401445.

[3]  V. Charmandaris,et al.  Comparing Chandra and SIRTF Observations for Obscured Starbursts and Active Galactic Nuclei at High Redshift , 2003, astro-ph/0309467.

[4]  S. M. Fall,et al.  The Great Observatories Origins Deep Survey: Initial Results from Optical and Near-Infrared Imaging , 2003, astro-ph/0309105.

[5]  D. M. Alexander,et al.  The Chandra Deep Field North Survey. XIII. 2 Ms Point-Source Catalogs , 2003, astro-ph/0304392.

[6]  I. Smail,et al.  A median redshift of 2.4 for galaxies bright at submillimetre wavelengths , 2003, Nature.

[7]  V. Springel,et al.  Black Hole Growth and Activity in a Λ Cold Dark Matter Universe , 2003, astro-ph/0301586.

[8]  E. Bell.  Estimating Star Formation Rates from Infrared and Radio Luminosities: The Origin of the Radio-Infrared Correlation , 2002, astro-ph/0212121.

[9]  A. Comastri,et al.  The 2-10 keV luminosity as a Star Formation Rate indicator , 2002, astro-ph/0202241.

[10]  T. Heckman,et al.  The Starburst Nature of Lyman Break Galaxies: Testing Ultraviolet Extinction with X-Rays , 2002, astro-ph/0204047.

[11]  E. Feigelson,et al.  X-Ray-emitting Young Stars in the Orion Nebula , 2002, astro-ph/0203316.

[12]  O. Fèvre,et al.  The Canada-United Kingdom Deep Submillimeter Survey. V. The Submillimeter Properties of Lyman Break Galaxies , 2002, astro-ph/0201181.

[13]  M. Yun,et al.  Radio Properties of Infrared-selected Galaxies in the IRAS 2 Jy Sample , 2001, astro-ph/0102154.

[14]  C. C. Steidel,et al.  Multiwavelength Observations of Dusty Star Formation at Low and High Redshift , 2000, astro-ph/0001126.

[15]  E. Richards.  The Nature of Radio Emission from Distant Galaxies: The 1.4 GHz Observations , 1999, astro-ph/9908313.

[16]  O. Fèvre,et al.  15 Micron Infrared Space Observatory Observations of the 1415+52 Canada-France Redshift Survey Field: The Cosmic Star Formation Rate as Derived from Deep Ultraviolet, Optical, Mid-Infrared, and Radio Photometry , 1999 .

[17]  Timothy M. Heckman,et al.  Dust Absorption and the Ultraviolet Luminosity Density at z ≈ 3 as Calibrated by Local Starburst Galaxies , 1999, astro-ph/9903054.

[18]  Cambridge,et al.  ∼ 4 and the Evolution of the Uv Luminosity Density at High Redshift , 2022 .

[19]  ApJ, in press , 1999 .

[20]  Jr.,et al.  STAR FORMATION IN GALAXIES ALONG THE HUBBLE SEQUENCE , 1998, astro-ph/9807187.

[21]  Jr.,et al.  The Global Schmidt law in star forming galaxies , 1997, astro-ph/9712213.

[22]  A. Aragón-Salamanca,et al.  The Current Star Formation Rate of the Local Universe , 1995, astro-ph/9510061.

[23]  Harland W. Epps,et al.  THE KECK LOW-RESOLUTION IMAGING SPECTROMETER , 1995 .

[24]  Blair D. Savage,et al.  An IUE Survey of Interstellar H I LY alpha Absorption , 1994 .

[25]  Giuseppina Fabbiano,et al.  The X-ray spectra of galaxies. II - Average spectral properties and emission mechanisms , 1992 .

[26]  Carl Heiles,et al.  The bell laboratories H I survey , 1992 .

[27]  James J. Condon,et al.  Radio Emission from Normal Galaxies , 1992 .