363 citations · 1.4k across the 20 of their papers we have counts for
21 papers
A New Hope for AGN SED Fitting: X-Ray Spectral Analysis of 12MGS AGN with the C2PO-Torus Model
Carys J. E. Gilbert, Lucia Marchetti, Luigi Barchiesi +8
In this paper, we present the results of comprehensive, broadband X-ray spectral analysis of a subsample of 43 mid-Infrared (IR) selected star-forming active galactic nuclei (AGN).…
Molecular outflow and feedback in the obscured Quasar XID2028 revealed by ALMA
M. Brusa, G. Cresci, E. Daddi +29
We imaged with ALMA and ARGOS/LUCI the molecular gas and the dust and stellar continuum in XID2028, an obscured QSO at z=1.593, where the presence of a massive outflow in the ioniz…
Magnifying the early episodes of star formation: super star clusters at cosmological distances
E. Vanzella, M. Castellano, M. Meneghetti +27
We study the spectrophotometric properties of a highly magnified (μ~40-70) pair of stellar systems identified at z=3.2222 behind the Hubble Frontier Field galaxy cluster MACS~J0416…
Unveiling multiple AGN activity in galaxy mergers
A. De Rosa, S. Bianchi, T. Bogdanovic +13
In this paper we present an overview of the MAGNA (Multiple AGN Activity) project aiming at a comprehensive study of multiple supemassive black hole systems. With the main goal to…
The space density of Compton-thick AGN at z~0.8 in the zCOSMOS-Bright Survey
C. Vignali, M. Mignoli, R. Gilli +5
The obscured accretion phase in BH growth is a key ingredient in many models linking the AGN activity with the evolution of their host galaxy. At present, a complete census of obsc…
HS 1700+6416: the first high redshift non lensed NAL-QSO showing variable high velocity outflows
G. Lanzuisi, M. Giustini, M. Cappi +4
We present a detailed analysis of the X-ray emission of HS 1700+6416, a high redshift (z=2.7348), luminous quasar, classified as a Narrow Absorption Line (NAL) quasar on the basis…
On the nature of the absorber in IRAS 09104+4109: the X-ray and mid-infrared view
C. Vignali, E. Piconcelli, G. Lanzuisi +8
We present a long (~76 ks) Chandra observation of IRAS 09104+4109, a hyper-luminous galaxy, optically classified as a Type 2 AGN hosted in a cD galaxy in a cluster at z=0.442. We a…
Modelling Galaxy and AGN Evolution in the IR: Black Hole Accretion versus Star-Formation Activity
C. Gruppioni, F. Pozzi, G. Zamorani +1
We present a new backward evolution model for galaxies and AGNs in the infrared (IR). What is new in this model is the separate study of the evolutionary properties of the differen…
Discovery of Compton-thick quasars in the Sloan Digital Sky Survey
C. Vignali, D. M. Alexander, R. Gilli +1
We present new and archival Chandra snapshot (10 ks each) observations of 15 optically identified (from the Sloan Digital Sky Survey, SDSS) Type 2 quasars at z=0.40-0.73. When comb…
A deep look at the inner regions of the mini-BAL QSO PG 1126-041 with XMM-Newton
M. Giustini, M. Cappi, G. Chartas +3
A long XMM-Newton observation of the mini-BAL QSO PG 1126-041 allowed us to detect a highly ionized phase of X-ray absorbing gas outflowing at v~15000 km/s. Physical implications a…
Variable X-ray Absorption in mini-BAL QSOs
M. Giustini, M. Cappi, G. Chartas +3
We present the results of X-ray spectral analysis of two mini-BAL QSOs, PG 1126-041 and PG 1351+640, aimed at getting insights into the physics of quasar outflows. We find strong X…
On the cosmic evolution of the scaling relations between black holes and their host galaxies: Broad Line AGN in the zCOSMOS survey
A. Merloni, A. Bongiorno, M. Bolzonella +56
(Abriged) We report on the measurement of the rest frame K-band luminosity and total stellar mass of the hosts of 89 broad line Active Galactic Nuclei detected in the zCOSMOS surve…
The Chandra survey of the COSMOS field II: source detection and photometry
S. Puccetti, C. Vignali, N. Cappelluti +15
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program, that covers the central contiguous ~0.92 deg^2 of the COSMOS field. C-COSMOS is the result of a complex ti…
Soft X-ray and Ultraviolet Emission Relations in Optically Selected AGN Samples
Iskra Strateva, Niel Brandt, Donald Schneider +2
Using a sample of 228 optically selected Active Galactic Nuclei (AGNs) in the 0.01-6.3 redshift range with a high fraction of X-ray detections (81-86%), we study the relation betwe…
X-ray Survey Results on Active Galaxy Physics and Evolution
W. N. Brandt, D. M. Alexander, F. E. Bauer +1
This "pedagogical" review describes the key Chandra and XMM-Newton extragalactic surveys to date and details some of their implications for AGN physics and evolution. We additional…
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 +4
We investigate the relationship between faint X-ray and 1.4 GHz radio source populations detected within 3' of the Hubble Deep Field North using the 1 Ms Chandra and 40 uJy VLA sur…
The BeppoSAX High Energy Large Area Survey -V. The nature of the hard X-ray source populations and its evolution
F. La Franca, F. Fiore, C. Vignali +7
We present optical spectroscopic identifications of hard X-ray (5-10 keV) selected sources belonging to the HELLAS sample obtained with BeppoSAX down to a 5-10 keV flux limit of f_…
The Chandra Deep Field North Survey. X. X-ray Emission from Very Red Objects
D. M. Alexander, C. Vignali, F. E. Bauer +4
The multi-wavelength properties of Very Red Objects (VROs; I-K>=4) are largely unknown as many of these sources are optically faint (I>=24) and undetected at most wavelengths. Here…
The HELLAS2XMM survey: I. The X-ray data and the Log(N)-Log(S)
A. Baldi, S. Molendi, A. Comastri +3
We present the first results from an XMM-Newton serendipitous medium-deep survey, which covers nearly three square degrees. We detect a total of 1022, 495 and 100 sources, down to…
ASCA view on High-Redshift Radio-Quiet Quasars
C. Vignali, A. Comastri, M. Cappi +2
We briefly discuss the latest ASCA results on the X-ray spectral properties of high-redshift radio-quiet quasars.
On the nature of the X-ray absorption in the Seyfert 2 galaxy NGC 4507
A. Comastri, C. Vignali, M. Cappi +4
We present results of the ASCA observation of the Seyfert 2 galaxy NGC 4507. The 0.5-10 keV spectrum is rather complex and consists of several components: (1) a hard X-ray power la…