Eddington ratios of faint AGN at intermediate redshift: evidence for a population of half-starved black holes

I. Gavignaud (1) , L. Wisotzki , A. Bongiorno , S. Paltani (2) , G. Zamorani , P. Møller , V. Le Brun (2) , B. Husemann , F. Lamareille (3) , M. Schramm , O. Le Fèvre (2) , D. Bottini , B. Garilli , D. Maccagni , R. Scaramella , M. Scodeggio , L. Tresse (2) , G. Vettolani , A. Zanichelli , C. Adami (2) , M. Arnaboldi , S. Arnouts (2) , S. Bardelli , M. Bolzonella , A. Cappi , S. Charlot (4, 5) , P. Ciliegi , T. Contini (3) , Sylvie Foucaud , P. Franzetti , L. Guzzo , O. Ilbert , A. Iovino , H. J. Mccracken (5) , B. Marano , Christian Marinoni (6, 7) , A. Mazure (2) , B. Meneux , R. Merighi , R. Pellò (3) , A. Pollo , L. Pozzetti , M. Radovich , E. Zucca , M. Bondi , G. Busarello , O. Cucciati , S. de La Torre (2) , L. Gregorini , Y. Mellier , P. Merluzzi , V. Ripepi , D. Rizzo , D. Vergani (8)

1 ESO - European Southern Observatory
2 LAM - Laboratoire d'Astrophysique de Marseille
3 LATT - Laboratoire Astrophysique de Toulouse-Tarbes
4 MPA - Max-Planck-Institut für Astrophysik
5 IAP - Institut d'Astrophysique de Paris
6 CPT - Centre de Physique Théorique - UMR 6207
7 CPT - Centre de Physique Théorique - UMR 7332
8 INAF- Milano

We use one of the deepest spectroscopic samples of broad-line active galactic nuclei (AGN) currently available, extracted from the VIMOS VLT Deep Survey (VVDS), to compute the Mg II and C IV virial-mass estimates of 120 super-massive black holes in the redshift range 1.0

Mots clés: galaxies: active; galaxies: Seyfert; galaxies: nuclei

Domaines: Astrophysique galactique [astro-ph.GA]

I. Gavignaud, L. Wisotzki, A. Bongiorno, S. Paltani, G. Zamorani, et al.. Eddington ratios of faint AGN at intermediate redshift: evidence for a population of half-starved black holes. Astronomy and Astrophysics - A&A, 2008, 492, pp.637-650. ⟨10.1051/0004-6361:20078957⟩. ⟨hal-00391179⟩