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29 March 2024
 
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Results 1 to 20 of 324 for query "A.Comastri". (0.00 sec.)

[    1    2    3    4    5    10    ]   Next
1.
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
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2.
BeppoSAX observation of NGC 7674: a new reflection-dominated Seyfert 2 galaxy
G. Malaguti; G.G.C. Palumbo; M. Cappi; A. Comastri; C. Otani; M. Matsuoka; M. Guainazzi; L. Bassani; F. Frontera;
13 Nov 1997
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3.
Optical, near-infrared and hard X-ray observations of SAXJ1353.9+1820: a red quasar
C. Vignali; M. Mignoli; A. Comastri; R. Maiolino; F. Fiore;
14 Feb 2000
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4.
Highly Ionized Neon in the Spectrum of the Sey 2 Galaxy NGC 4507 ?
C. Vignali; R. Audano; A. Comastri; M. Cappi; G. Matt;
17 Dec 1996
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5.
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
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6.
HEXIT-SAT: a mission concept for X-ray grazing incidence telescopes from 0.5 to 70 keV
F. Fiore; G.C. Perola; G. Pareschi; O. Citterio; A. Anselmi; A. Comastri;
30 Jul 2004
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7.
The HELLAS2XMM survey: IV. Optical identifications and the evolution of the accretion luminosity in the Universe
F. Fiore; M. Brusa; F. Cocchia; A. Baldi; N. Carangelo; P. Ciliegi; A. Comastri; F. la Franca; R. Maiolino; G. Matt; S. Molendi; M. Mignoli; G.C. Perola; P. Severgnini; C. Vignali;
26 Jun 2003   /  Astron.Astrophys. 409 (2003) 79-90
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8.
The BeppoSAX High Energy Large Area Survey. IV. On the soft X-ray properties of the hard X-ray-selected HELLAS sources
C. Vignali; A. Comastri; F. Fiore; F. La Franca;
24 Feb 2001
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9.
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
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10.
1H0419-577: A "two-state" soft X-ray Seyfert galaxy
M.Guainazzi; A.Comastri; G.M.Stripe; W.N.Brandt; F.Fiore; K.M.Leighly; G.Matt; S.Molendi; E.M.Puchnarewicz; L.Piro; A.Siemiginowska ( Astrophysics Division; ESA; NL; BeppoSAX SDC; ASI; I; Osservatorio Astronomico di Bologna; I; Penn State University; USA; Osservatorio Astronomico di Roma; I; Columbia University; USA; Universita' di Roma 3; I; IFCTR/CNR; I; University College London; UK; IAS/CNR; I;;
3 Aug 1998
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11.
1H0419-577: A "two-state" soft X-ray Seyfert galaxy
M.Guainazzi; A.Comastri; G.M.Stripe; W.N.Brandt; F.Fiore; K.M.Leighly; G.Matt; S.Molendi; E.M.Puchnarewicz; L.Piro; A.Siemiginowska ( Astrophysics Division; ESA; NL; BeppoSAX SDC; ASI; I; Osservatorio Astronomico di Bologna; I; Penn State University; USA; Osservatorio Astronomico di Roma; I; Columbia University; USA; Universita' di Roma 3; I; IFCTR/CNR; I; University College London; UK; IAS/CNR; I;;
3 Aug 1998
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12.
The contribution of AGNs to the X-ray background
A. Comastri; G. Setti; G. Zamorani; G. Hasinger;
27 Sep 1994   /  Astron.Astrophys. 296 (1995) 1
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13.
The variable ROSAT X-ray spectrum of the BL Lac 0716+714
M. Cappi; A. Comastri; S. Molendi; G.G.C. Palumbo; R. Della Ceca; T. Maccacaro;
27 Sep 1994   /  Mon.Not.Roy.Astron.Soc. 271 (1994) 438
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14.
On the X-ray Properties of OH Megamaser Sources: Chandra Snapshot Observations
C. Vignali; W.N.Brandt; A. Comastri; J. Darling;
25 Aug 2005
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15.
Obscured accreting black holes at high redshift
A. Comastri; F. Fiore; C. Vignali; M. Brusa; F. Civano;
11 Oct 2004
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16.
X-ray bright optically quiet galaxies: the case of P3
A. Comastri; M. Brusa; P. Ciliegi; M. Mignoli; C. Vignali; P. Severgnini; R. Maiolino; F. Fiore; F. La Franca; G. Matt; G.C. Perola; A. Baldi; S. Molendi;
7 Sep 2001
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17.
Inverse Compton X-rays from strong FRII radio-galaxies
G. Brunetti; G. Setti; A. Comastri;
16 Apr 1997
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18.
Type II quasar candidates in the Sloan Digital Sky Survey: evidence for X-ray obscuration
C. Vignali; D.M. Alexander; A. Comastri;
28 Sep 2004
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19.
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
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20.
The contribution of AGN to the X-ray background: the effect of iron features
R. Gilli; A. Comastri; G. Brunetti; G. Setti;
18 Feb 1999
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