The VIMOS VLT Deep Survey: the faint type-1 AGN sample

We present the type-1 active galactic nuclei (AGN) sample extracted from the VIMOS VLT Deep Survey first observations of 21000 spectra in 1.75 square degree. This sample, which is purely magnitude limited, free of morphological or color selection biases, contains 130 broad line AGN (BLAGN) spectra with redshift up to 5. Our data are divided into a wide (Iab 3000 A. We interpret this as due to significant contamination from emission of the host galaxies, as expected from the faint absolute magnitudes sampled by our survey.

[1]  K. I. Kellermann,et al.  The Parkes quarter-Jansky flat-spectrum sample - III. Space density and evolution of QSOs , 2004, astro-ph/0408122.

[2]  A. Mazure,et al.  The VIMOS VLT deep survey , 2008, 0903.0271.

[3]  B. Garilli,et al.  The VIRMOS deep imaging survey IV: Near-infrared observations , 2005, astro-ph/0507668.

[4]  The VIMOS VLT deep survey - Computing the two point correlation statistics and associated uncertainties , 2004, astro-ph/0409138.

[5]  Oliver LeFevre,et al.  Commissioning and performances of the VLT-VIMOS , 2003, SPIE Astronomical Telescopes + Instrumentation.

[6]  M. Dantel-Fort,et al.  The VIRMOS deep imaging survey: II: CFH12K BVRI optical data for the 0226-04 deep field , 2003 .

[7]  J. Baldwin Luminosity Indicators in the Spectra of Quasi-Stellar Objects , 1977 .

[8]  N. Gehrels Confidence limits for small numbers of events in astrophysical data , 1986 .

[9]  E. al.,et al.  Composite Quasar Spectra from the Sloan Digital Sky Survey , 2001, astro-ph/0105231.

[10]  B. Garilli,et al.  The Very Large Telescope Visible Multi‐Object Spectrograph Mask Preparation Software , 2005 .

[11]  B. Milliard,et al.  The GALEX VIMOS-VLT Deep Survey Measurement of the Evolution of the 1500 Å Luminosity Function , 2004 .

[12]  D. Schlegel,et al.  Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds , 1997, astro-ph/9710327.

[13]  A QSO survey via optical variability and zero proper motion in the M 92 field - IV. More QSOs due to improved photometry , 2002, astro-ph/0206231.

[14]  R. Kron Photometry of a complete sample of faint galaxies. , 1980 .

[15]  J. N. Bahcall,et al.  On the simultaneous analysis of several complete samples - The V/Vmax and Ve/Va variables, with applications to quasars , 1980 .

[16]  Frederic H. Chaffee,et al.  The Large Bright Quasar Survey.VI.Quasar Catalog and Survey Parameters , 1995 .

[17]  G. Hasinger,et al.  Luminosity-dependent evolution of soft X-ray selected AGN : New Chandra and XMM-Newton surveys , 2005, astro-ph/0506118.

[18]  I. Hook,et al.  The Parkes quarter-Jansky flat-spectrum sample. I. Sample selection and source identifications , 2002 .

[19]  G. Vettolani,et al.  The VLA-VIRMOS Deep Field I. Radio observations probing the microJy source population , 2003 .

[20]  C. Benoist,et al.  ESO imaging survey - Deep public survey: Multi-color optical data for the Chandra Deep Field South , 2001, astro-ph/0103071.

[21]  D. Schlegel,et al.  Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds , 1998 .

[22]  P. Hewett,et al.  A High Signal-to-Noise Ratio Composite Quasar Spectrum , 1991 .

[23]  Allan Sandage,et al.  On the Optical Identification of Eleven New Quasi-Stellar Radio Sources. , 1965 .

[24]  G. T. Richards,et al.  A Spectroscopic Survey of Faint Quasars in the SDSS Deep Stripe. I. Preliminary Results from the Co-added Catalog* , 2006 .

[25]  Takamitsu Miyaji,et al.  Cosmological Evolution of the Hard X-Ray Active Galactic Nucleus Luminosity Function and the Origin of the Hard X-Ray Background , 2003, astro-ph/0308140.

[26]  et al,et al.  Optical and Radio Properties of Extragalactic Sources Observed by the FIRST Survey and the Sloan Digital Sky Survey , 2002, astro-ph/0202408.

[27]  A. Mazure,et al.  The VIRMOS deep imaging survey: I. overview and survey strategy , 2002 .

[28]  Alvio Renzini,et al.  ESO Imaging Survey , 1999 .

[29]  G. Vettolani,et al.  The VIRMOS deep imaging survey - III. ESO/WFI deep U-band imaging of the 0226-04 deep field , 2004 .

[30]  Oxford,et al.  The 2dF QSO Redshift Survey – XII. The spectroscopic catalogue and luminosity function , 2004, astro-ph/0403040.

[31]  S. Dye,et al.  The evolution of faint AGN between z ' 1 and z ' 5 from the COMBO-17 survey , 2003 .

[32]  A. Mazure,et al.  The VIMOS-VLT deep survey - Evolution of the galaxy luminosity function up to z = 2 in first epoch data , 2004, astro-ph/0409134.

[33]  M. SubbaRao,et al.  Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Quasar Sample , 2002, astro-ph/0202251.

[34]  T. Budavari,et al.  The GALEX-VVDS Measurement of the Evolution of the Far-Ultraviolet Luminosity Density and the Cosmic Star Formation Rate , 2004, astro-ph/0411424.

[35]  L. Kewley,et al.  The Chandra Deep Field-South: Optical Spectroscopy. I. , 2003, astro-ph/0312324.

[36]  R. Nichol,et al.  An Empirical Calibration of the Completeness of the SDSS Quasar Survey , 2005, astro-ph/0501113.