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Results 1 to 20 of 294 for query "C. Vignali ". (0.00 sec.)

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An XMM-Newton survey of Extremely Red Objects
M. Brusa; A. Comastri; E. Daddi; A. Cimatti; C. Vignali;
15 Apr 2002

The AGN content of hard X-ray surveys
A. Comastri; C. Vignali; M. Brusa; for the HELLAS consortium; the HELLAS2XMM consortium;
12 Dec 2001

A Chandra observation of the z=2.285 galaxy FSC10214+4724: Evidence for a Compton-thick quasar?
D. M. Alexander; G. Chartas; F. E. Bauer; W. N. Brandt; C. Simpson; C. Vignali;
11 Nov 2004

The HELLAS2XMM survey. V. Near-Infrared observations of X-ray sources with extreme X/O ratios
M. Mignoli; L. Pozzetti; A. Comastri; M. Brusa; P. Ciliegi; F. Cocchia; F. Fiore; F. La Franca; R. Maiolino; G. Matt; S. Molendi; G.C. Perola; S. Puccetti; P. Severgnini; C. Vignali;
15 Dec 2003 / Astron.Astrophys. 418 (2004) 827-840

ASCA and ROSAT X-ray Spectra of High-Redshift Radio-Loud Quasars
M. Cappi; M. Matsuoka; A. Comastri; W. Brinkmann; M. Elvis; G.G.C. Palumbo; C. Vignali;
25 Oct 1996

Chandra Observations of Radio-Loud Quasars at z > 4: X-rays from the Radio Beacons of the Early Universe
L.C. Bassett; W.N. Brandt; D.P. Schneider; C. Vignali; G. Chartas; G.P. Garmire;
27 Apr 2004

Arakelian 564: An XMM-Newton view
C. Vignali; W.N. Brandt; Th. Boller; A.C. Fabian; S. Vaughan;
9 Oct 2003

The Hellas2XMM survey: III. Multiwavelength observations of hard X-ray selected sources in the PKS 0312-77 field
M. Brusa; A. Comastri; M. Mignoli; F. Fiore; P. Ciliegi; C. Vignali; P. Severgnini; F. Cocchia; F. La Franca; G. Matt; G.C. Perola; R. Maiolino; A. Baldi; S. Molendi;
21 Jul 2003 / Astron.Astrophys. 409 (2003) 65-78

ASCA detection of the FeK edge in the spectrum of the Seyfert 2 galaxy IRAS 04575-7537: a sign of a complex absorber
C. Vignali; A. Comastri; G.M. Stirpe; M. Cappi; G.G.C. Palumbo; M. Matsuoka; G. Malaguti; L. Bassani;
18 Dec 1997

10.

ASCA and ROSAT X-ray Spectra of IC 5063 and NGC 3998
C. Vignali; A. Comastri; M. Cappi; G.G.C. Palumbo;
17 Dec 1996

11.

The First High-Energy X-Ray Spectrum of a Z$>2$ Radio-Quiet Quasar: Q1101-264
C. Vignali; A. Comastri; M. Cappi; G.G.C. Palumbo;
17 Dec 1996

12.

XMM-Newton observations of Extremely Red Objects and the link with luminous, X-ray obscured Quasars
M. Brusa; A. Comastri; E. Daddi; L. Pozzetti; G. Zamorani; C. Vignali; A. Cimatti; F. Fiore; M. Mignoli; P. Ciliegi; H.J.A. Rottgering;
10 Sep 2004

13.

X-ray Survey Results on Active Galaxy Physics and Evolution
W.N. Brandt; D.M. Alexander; F.E. Bauer; C. Vignali;
28 Mar 2004

14.

X-raying Active Galaxies Found and Missed by the Sloan Digital Sky Survey
W.N. Brandt; D.P. Schneider; C. Vignali;
13 Oct 2003

15.

The nuclear accretion in the FR I radio galaxy IC4296 from CHANDRA and VLBA observations
S. Pellegrini; T. Venturi; A. Comastri; G. Fabbiano; F. Fiore; C. Vignali; R. Morganti; G. Trinchieri;
14 Nov 2002 / Astrophys.J. 585 (2003) 677-686

16.

The Chandra Deep Field North Survey. XII. The Link Between Faint X-ray and Radio Source Populations
F.E. Bauer; D.M. Alexander; W.N. Brandt; A.E. Hornschemeier; C. Vignali; G.P. Garmire; & D.P. Schneider;
19 Jul 2002

17.

The HELLAS2XMM survey: I. The X-ray data and the Log(N)-Log(S)
A. Baldi; S.Molendi; A. Comastri; F. Fiore; G. Matt; C. Vignali;
31 Aug 2001

18.

On the nature of X-ray Bright Optically Normal galaxies
A. Comastri; M. Brusa; P. Ciliegi; M. Mignoli; F. Fiore; R. Maiolino; P. Severgnini; A. Baldi; S. Molendi; C. Vignali; F. La Franca; G. Matt; G.C. Perola;
3 Mar 2002

19.

On the peculiar X-ray properties of the bright nearby radio-quiet quasar PDS456
C. Vignali; A. Comastri; F. Nicastro; G. Matt; F. Fiore; G.G.C. Palumbo;
5 Aug 2000

20.

ASCA view on High-Redshift Radio-Quiet Quasars
C. Vignali; A. Comastri; M. Cappi; G.G.C. Palumbo; M. Matsuoka;
13 Jul 2000

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