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.
Papers
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X-ray emitting eros as tracers of black holes-galaxies coevolution
Marcella Brusa,Andrea Comastri,E. Daddi,M. Mignoli,Cristian Vignali,G. Zamorani,Fabrizio Fiore,Lucia Pozzetti +7 more
TL;DR: In this article, the results obtained from the combined analysis of 80 ks XMM-Newton and 90 ks Chandra observations of a complete sample of optically selected EROs, with particular emphasys on the relationship between X-EROs and high luminosity, obscured quasars (QSO2).
ASCA and ROSAT X-ray spectra of IC 5063 and NGC 3998.
TL;DR: In this paper, the results of the 0.1-10 keV spectral analysis of IC 5063 (Narrow Line Radio Galaxy) and NGC 3998 (LINER) are presented.
Journal ArticleDOI
The HELLAS2XMM survey: XI. Unveiling the nature of X-ray Bright Optically Normal Galaxies
Francesca Civano,Francesca Civano,M. Mignoli,Andrea Comastri,Cristian Vignali,Cristian Vignali,Fabrizio Fiore,Lucia Pozzetti,Marcella Brusa,F. La Franca,Giorgio Matt,Simonetta Puccetti,F. Cocchia +12 more
TL;DR: In this article, the surface brightness decomposition of X-ray bright Optically Normal Galaxies (XBONGs) was applied to search for the presence of the putative nucleus, applying the surface-brightness decomposition technique through the least squares fitting program GALFIT.
Posted Content
BeppoSAX observations of Mkn 3: Piercing through the torus of a Seyfert 2 galaxy
M. Cappi,L. Bassani,Andrea Comastri,Matteo Guainazzi,Tommaso Maccacaro,G. Malaguti,Giorgio Matt,Giorgio G. C. Palumbo,Philip Blanco,Mauro Dadina,D. Dal Fiume,G. Di Cocco,Andrew C. Fabian,Filippo Frontera,Roberto Maiolino,Luigi Piro,M. Trifoglio,N. Zhang +17 more
TL;DR: In this article, a broad-band spectrum of the Seyfert 2 galaxy Mkn 3 is presented, which provides a direct measurement of a large, neutral column of gas with Nh~10−24 cm**-2 in the source direction.
Proceedings ArticleDOI
XEUS-the X-ray evolving universe spectroscopy mission
Arvind Parmar,T. Peacock,Marcos Bavdaz,Günther Hasinger,Monique Arnaud,Xavier Barcons,Didier Barret,Alain Blanchard,Hans Böhringer,Massimo Cappi,Andrea Comastri,Thierry J.-L. Courvoisier,Andrew C. Fabian,Richard E. Griffiths,P. Malaguti,Keith O. Mason,Takaya Ohashi,Frits Paerels,L. Piro,J. H. M. M. Schmitt,M. van der Klis,Martin Ward +21 more
TL;DR: The properties of a 350 eV (rest-frame) equivalent width Fe line from a 1044 erg s−1 AGN will be measurable out to z=10, paving the way for detailed spectroscopic X-ray studies of some of the earliest known objects.