A
Andrea Comastri
Researcher at INAF
Publications - 718
Citations - 52821
Andrea Comastri is an academic researcher from INAF. The author has contributed to research in topics: Galaxy & Active galactic nucleus. The author has an hindex of 111, co-authored 706 publications receiving 49119 citations. Previous affiliations of Andrea Comastri include University of Bologna & Max Planck Society.
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Journal ArticleDOI
Mass without radiation: Heavily obscured AGNs, the X-ray background, and the black hole mass density
Andrea Comastri,Roberto Gilli,Alessandro Marconi,Alessandro Marconi,Guido Risaliti,M. Salvati +5 more
TL;DR: In this article, the authors show how it is possible to accommodate a larger fraction of heavily buried, Compton-thick active galactic nuclei (AGN) without violating the limit imposed by the spectral energy density of the hard X-ray and mid-infrared backgrounds.
Journal ArticleDOI
Chandra counterparts of candels goods-s sources
Nico Cappelluti,Nico Cappelluti,Andrea Comastri,Adriano Fontana,G. Zamorani,Ricardo Amorín,Marco Castellano,E. Merlin,Paola Santini,David Elbaz,Corentin Schreiber,X. Shu,X. Shu,Tao Wang,Tao Wang,James Dunlop,Nathan Bourne,Vicki Bruce,Fernando Buitrago,Fernando Buitrago,Michał J. Michałowski,S. Derriere,Henry C. Ferguson,S. M. Faber,Fabio Vito,Fabio Vito +25 more
TL;DR: In this article, the authors performed a simultaneous Maximum Likelihood PSF fit in the [0.5-2] and [2-7] energy bands of the 4Ms{\em Chandra} Deep Field South (CDFS) data at the position of the 34930 CANDELS H-band selected galaxies.
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Chandra High resolution Observations of CID-42, a candidate recoiling SMBH
Francesca Civano,M. Elvis,Giorgio Lanzuisi,T. Aldcroft,M. Trichas,Angela Bongiorno,Marcella Brusa,Laura Blecha,Andrea Comastri,Avi Loeb,Mara Salvato,Antonella Fruscione,Anton M. Koekemoer,S. Komossa,Roberto Gilli,Vincenzo Mainieri,Enrico Piconcelli,C. Vignali +17 more
TL;DR: In this article, the authors present Chandra high-resolution camera observations of CID-42, a candidate recoiling supermassive black hole (SMBH) at z = 0.359 in the COSMOS survey.
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Tracing the accretion history of supermassive black holes through X-ray variability: results from the Chandra Deep Field-South
Maurizio Paolillo,I. E. Papadakis,W. N. Brandt,Bin Luo,Yongquan Xue,Paolo Tozzi,Ohad Shemmer,Viola Allevato,Viola Allevato,Franz E. Bauer,Andrea Comastri,Roberto Gilli,Anton M. Koekemoer,Tong Liu,C. Vignali,Fabio Vito,Guang Yang,Jun Xian Wang,X. C. Zheng +18 more
TL;DR: In this article, the X-ray variability properties of distant active galactic nuclei (AGNs) in the Chandra Deep Field-South region over 17 yr, up to z ~ 4, were studied.
Journal ArticleDOI
The NuSTAR Serendipitous Survey: The 40 month Catalog and the Properties of the Distant High Energy X-ray Source Population
George B. Lansbury,D. Stern,James Aird,David M. Alexander,C. Fuentes,Fiona A. Harrison,Ezequiel Treister,Franz E. Bauer,John A. Tomsick,Mislav Baloković,A. Del Moro,Poshak Gandhi,Marco Ajello,A. Annuar,David R. Ballantyne,S. E. Boggs,N. Brandt,Murray Brightman,C. J. Chen,F. E. Christensen,Francesca Civano,Andrea Comastri,William W. Craig,K. Forster,Brian W. Grefenstette,C. J. Hailey,Ryan C. Hickox,B. Jiang,Hyunsung David Jun,Michael Koss,Stefano Marchesi,A. D. Melo,James Mullaney,G. Noirot,Steve Schulze,Dominic J. Walton,Luca Zappacosta,W. W. Zhang +37 more
TL;DR: In this article, the authors present the first full catalog and science results for the NuSTAR serendipitous survey, and characterize the overall sample in terms of the X-ray, optical, and infrared source properties.