C
Cristian Vignali
Researcher at INAF
Publications - 563
Citations - 29577
Cristian Vignali is an academic researcher from INAF. The author has contributed to research in topics: Galaxy & Active galactic nucleus. The author has an hindex of 85, co-authored 529 publications receiving 27128 citations. Previous affiliations of Cristian Vignali include Pennsylvania State University & University of Concepción.
Papers
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The X-ray to Optical-UV Luminosity Ratio of X-ray Selected Type 1 AGN in XMM-Cosmos
TL;DR: In this article, a study of the X-ray to optical properties of a sample of 545 x-ray selected type 1 AGN, from the XMM-COSMOS survey, over a wide range of redshifts (0.04, 4.25, and 40.6), was presented.
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The XMM Deep survey in the CDFS I. First results on heavily obscured AGN
Andrea Comastri,Piero Ranalli,K. Iwasawa,Cristian Vignali,Roberto Gilli,I. Georgantopoulos,Xavier Barcons,W. N. Brandt,Hermann Brunner,Marcella Brusa,Nico Cappelluti,Francisco J. Carrera,Francesca Civano,Fabrizio Fiore,G. Hasinger,Vincenzo Mainieri,Andrea Merloni,Fabrizio Nicastro,Maurizio Paolillo,Simonetta Puccetti,Piero Rosati,John D. Silverman,Paolo Tozzi,G. Zamorani,Italo Balestra,Franz E. Bauer,B. Luo,Yongquan Xue +27 more
TL;DR: In this article, the first results of the spectroscopy of distant, obscured AGN as obtained with the ultra-deep (~3.3 Ms) XMM-Newton survey in the Chandra Deep Field South (CDFS) were presented.
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Identifications and Photometric Redshifts of the 2 Ms Chandra Deep Field-South Sources
Bin Luo,W. N. Brandt,Yongquan Xue,Marcella Brusa,David M. Alexander,Franz E. Bauer,Franz E. Bauer,Andrea Comastri,Anton M. Koekemoer,Bret D. Lehmer,Bret D. Lehmer,Bret D. Lehmer,V. Mainieri,David Rafferty,Donald P. Schneider,John D. Silverman,Cristian Vignali +16 more
TL;DR: In this paper, the authors presented reliable multiwavelength identifications and high quality photometric redshifts for the 462 X-ray sources in the 2Ms Chandra Deep Field-South survey.
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The Chandra COSMOS Legacy survey: optical/IR identifications
S. Marchesi,S. Marchesi,S. Marchesi,Francesca Civano,Francesca Civano,Martin Elvis,Mara Salvato,Marcella Brusa,Andrea Comastri,Roberto Gilli,Günther Hasinger,Giorgio Lanzuisi,Takamitsu Miyaji,Takamitsu Miyaji,Ezequiel Treister,C. M. Urry,Cristian Vignali,G. Zamorani,Viola Allevato,Nico Cappelluti,C. Cardamone,Alexis Finoguenov,Richard E. Griffiths,Alexander Karim,Clotilde Laigle,Stephanie M. LaMassa,Knud Jahnke,Piero Ranalli,Kevin Schawinski,Eva Schinnerer,Eva Schinnerer,John D. Silverman,Vernesa Smolčić,Hyewon Suh,Benny Trakhtenbrot +34 more
TL;DR: The catalog of optical and infrared counterparts of the Chandra COSMOS-Legacy Survey, a 4.6Ms Chandra program on the 2.2 square degrees of the COS MOS field, was presented in this paper.
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The impact of galaxy interactions on AGN activity in zCOSMOS
John D. Silverman,P. Kampczyk,Knud Jahnke,Rene Andrae,S. J. Lilly,M. Elvis,Francesca Civano,Vincenzo Mainieri,Cristian Vignali,G. Zamorani,P. Nair,O. Le Fevre,L. de Ravel,S. Bardelli,Angela Bongiorno,M. Bolzonella,Marcella Brusa,Nico Cappelluti,A. Cappi,Karina Caputi,C. M. Carollo,T. Contini,Graziano Coppa,O. Cucciati,S. de la Torre,P. Franzetti,B. Garilli,C. Halliday,G. Hasinger,A. Iovino,C. Knobel,Anton M. Koekemoer,Katarina Kovac,F. Lamareille,J. F. Le Borgne,V. Le Brun,Christian Maier,M. Mignoli,R. Pello,E. Perez Montero,E. Ricciardelli,Y. Peng,Marco Scodeggio,Masaomi Tanaka,L. A. M. Tasca,L. Tresse,D. Vergani,E. Zucca,Andrea Comastri,A. Finoguenov,Hai Fu,Roberto Gilli,Heng Hao,Luis C. Ho,Mara Salvato +54 more
TL;DR: In this paper, a sample of 562 galaxies in kinematic pairs over the redshift range 0.25 2x10^42 erg s^-1) detected by Chandra was constructed and a higher fraction of AGN in galaxies in pairs relative to isolated galaxies of similar stellar mass.