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324
for query "
A.Comastri
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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
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
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
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
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
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
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
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
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
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
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
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
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
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
15.
Obscured accreting black holes at high redshift
A. Comastri
;
F. Fiore
;
C. Vignali
;
M. Brusa
;
F. Civano
;
11 Oct 2004
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
17.
Inverse Compton X-rays from strong FRII radio-galaxies
G. Brunetti
;
G. Setti
;
A. Comastri
;
16 Apr 1997
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
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
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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