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Mostrati risultati da 1 a 20 di 394
Titolo Autore(i) Anno Periodico Editore Tipo File
The nuclear accretion in the FR I radio galaxy IC 4296 from Chandra and very long baseline array observations Pellegrini S.; Venturi T.; Comastri A.; Fabbuno G.; Fiore F.; Vignali C.; Morganti R.; Trinchieri G. 2003-01-01 THE ASTROPHYSICAL JOURNAL - 1.01 Articolo in rivista -
Evidence for X-ray obscuration in Type II quasar candidates from the Sloan Digital Sky Survey Vignali C.; Comastri A.; Alexander D.M. 2004-01-01 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY - 1.01 Articolo in rivista -
X-rays from the first massive black holes Brandt W.N.; Vignali C.; Schneider D.P.; Alexander D.M.; Anderson S.F.; Bauer F.E.; Fan X.; Garmi...re G.P.; Kaspi S.; Richards G.T. 2004-01-01 ADVANCES IN SPACE RESEARCH - 1.01 Articolo in rivista -
The HELLAS2XMM 1dF survey: on the nature of high X-ray to optical flux ratio sources Fiore F.; Brusa M.; Cocchia F.; Baldi A.; Carangelo N.; Ciliegi P.; Comastri A.; La Franca F.; Ma...iolino R.; Matt G.; Molendi S.; Mignoli M.; Perola G.C.; Severgnini P.; Vignali C. 2004-01-01 - Kluwer 4.01 Contributo in Atti di convegno -
X-rays from the Dawn of the Modern Universe. Chandra and XMM-Newton Observations of z>4 Quasars Vignali C.; Brandt W.N.; Schneider D.P. 2004-01-01 - ASP Conferences Series 4.01 Contributo in Atti di convegno -
X-raying Active Galaxies Found and Missed by the Sloan Digital Sky Survey Brandt W.N.; Schneider D.P.; Vignali C. 2004-01-01 - ASP Conferences Series 4.01 Contributo in Atti di convegno -
The z>4 quasar population observed by Chandra and XMM-Newton Vignali C.; Brandt W.N.; Schneider D.P. 2004-01-01 - World Scientific 4.01 Contributo in Atti di convegno -
Type II quasar candidates in the Sloan Digital Sky Survey: evidence for X-ray obscuration Vignali C.; Comastri A.; Alexander D.M. 2004-01-01 - s.n 4.01 Contributo in Atti di convegno -
Chandra observations of radio-loud quasars at z>4: X-raying the radio beacons of the early Universe Bassett L.C.; Brandt W.N.; Schneider D.P.; Vignali C.; Garmire G.P. 2004-01-01 THE ASTRONOMICAL JOURNAL - 1.01 Articolo in rivista -
X-ray spectroscopy and variability of the AGN source population detected in the 2 Ms Chandra Deep Field-North Survey Bauer F.E.; Vignali C.; Alexander D.M.; Brandt W.N.; Garmire G.P.; Hornschemeier A.E.; Broos P.S....; Townsley L.K.; Schneider D.P. 2004-01-01 ADVANCES IN SPACE RESEARCH - 1.01 Articolo in rivista -
Arakelian 564: An XMM-Newton view Vignali C.; Brandt W.N.; Boller Th.; Fabian A.C.; Vaughan S. 2004-01-01 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY - 1.01 Articolo in rivista -
The HELLAS2XMM Survey. VI. X-ray absorption in the 1df AGN sample through a spectral analysis Perola G.C.; Puccetti S.; Fiore F.; Sacchi N.; Brusa M.; Cocchia F.; Baldi A.; Carangelo N.; Cili...egi P.; Comastri A.; La Franca F.; Maiolino R.; Matt G.; Mignoli M.; Molendi S.; Vignali C. 2004-01-01 ASTRONOMY & ASTROPHYSICS - 1.01 Articolo in rivista -
Restless Quasar Activity: From BeppoSAX to Chandra and XMM-Newton Vignali C.; Comastri A.; Brandt W.N. 2004-01-01 - Elsevier 4.01 Contributo in Atti di convegno -
The HELLAS2XMM Survey. V. Near-Infrared observations of X-ray sources with extreme X/O ratios Mignoli M.; Pozzetti L.; Brusa M.; Comastri A.; Ciliegi P.; Cocchia F.; Fiore F.; La Franca F.; M...aiolino R.; Matt G.; Molendi S.; Perola G.C.; Puccetti S.; Severgnini P.; Vignali C. 2004-01-01 ASTRONOMY & ASTROPHYSICS - 1.01 Articolo in rivista -
XMM-Newton spectroscopy of highly polarized and luminous broad absorption line quasar CSO 755 Shemmer O.; Brandt W.N.; Gallagher S.C.; Vignali C.; Boller Th.; Chartas G.; Comastri A. 2005-01-01 THE ASTRONOMICAL JOURNAL - 1.01 Articolo in rivista -
X-ray Lighthouses of the High-Redshift Universe. II. Further Snapshot Observations of the Most Luminous z>4 Quasars with Chandra Vignali C.; Brandt W.N.; Schneider D.P.; Kaspi S. 2005-01-01 THE ASTRONOMICAL JOURNAL - 1.01 Articolo in rivista -
The Extended Chandra Deep Field-South Survey. Chandra Point-Source Catalogs Lehmer D.B.; Brandt W.N.; Alexander D.M.; Bauer F.E.; Schneider D.P.; Tozzi P.; Bergeron J.; Garm...ire G.P.; Giacconi R.; Gilli R.; Hasinger G.; Hornschemeier A.E.; Koekemoer A.M.; Mainieri V.; Miyaji T.; Nonino M.; Rosati P.; Silverman J.D.; Szokoly G.; Vignali C. 2005-01-01 ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES - 1.01 Articolo in rivista -
Soft X-ray and ultraviolet emission relations in optically selected AGN samples Strateva I.; Brandt W.N.; Schneider D.P.; Vanden Berk D.G.; Vignali C. 2005-01-01 THE ASTRONOMICAL JOURNAL - 1.01 Articolo in rivista -
The X-ray spectral properties and variability of luminous high-redshift Active Galactic Nuclei Shemmer O.; Brandt W.N.; Vignali C.; Schneider D.P.; Fan X.; Richards G.T.; Strauss M. 2005-01-01 THE ASTROPHYSICAL JOURNAL - 1.01 Articolo in rivista -
X-rays from the first massive black holes Brandt W.N.; Vignali C.; Lehmer B.D.; Lopez L.A.; Schneider D.P.; Strateva I.V. 2005-01-01 - Springer 4.01 Contributo in Atti di convegno -
Mostrati risultati da 1 a 20 di 394
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