361 citations · 8.4k across the 127 of their papers we have counts for
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Advancing the Landscape of Multimessenger Science in the Next Decade
Kristi Engel, Tiffany Lewis, Marco Stein Muzio +91
The last decade has brought about a profound transformation in multimessenger science. Ten years ago, facilities had been built or were under construction that would eventually dis…
A Universal Scaling for the Energetics of Relativistic Jets From Black Hole Systems
Rodrigo S. Nemmen, Markos Georganopoulos, Sylvain Guiriec +3
Black holes generate collimated, relativistic jets which have been observed in gamma-ray bursts (GRBs), microquasars, and at the center of some galaxies (active galactic nuclei; AG…
X-ray evidence for ultra-fast outflows in local AGNs
F. Tombesi, M. Cappi, R. M. Sambruna +4
X-ray evidence for ultra-fast outflows (UFOs) has been recently reported in a number of local AGNs through the detection of blue-shifted Fe XXV/XXVI absorption lines. We present th…
Comparison of ejection events in the jet and accretion disc outflows in 3C 111
F. Tombesi, R. M. Sambruna, A. P. Marscher +3
We present a comparison of the parameters of accretion disc outflows and the jet of the broad-line radio galaxy 3C 111 on sub-pc scales. We make use of published X-ray observations…
New insights on the accretion disk-winds connection in radio-loud AGNs from Suzaku
F. Tombesi, R. M. Sambruna, J. N. Reeves +4
From the spectral analysis of long Suzaku observations of five radio-loud AGNs we have been able to discover the presence of ultra-fast outflows with velocities ~0.1c in three of t…
Fermi/LAT Observations of Swift/BAT Seyferts: on the Contribution of Radio-quiet AGN to the Extragalactic Gamma-ray Background
Stacy H. Teng, Richard F. Mushotzky, Rita M. Sambruna +2
We present the analysis of 2.1 years of Fermi/LAT data on 491 Seyfert galaxies detected by the Swift/BAT survey. Only the two nearest objects, NGC 1068 and NGC 4945, which were ide…
X-ray evidence for the accretion disc-outflow connection in 3C 111
F. Tombesi, R. M. Sambruna, J. N. Reeves +2
We present the spectral analysis of three Suzaku XIS observations of 3C 111 requested to monitor the predicted variability of its ultra-fast outflow on ~7 days time-scales. We dete…
The High Energy view of the Broad Line Radio Galaxy 3C 111
L. Ballo, V. Braito, J. N. Reeves +2
We present the analysis of Suzaku and XMM-Newton observations of the broad-line radio galaxy (BLRG) 3C 111. Its high energy emission shows variability, a harder continuum with resp…
The Suzaku view of 3C 382
R. M. Sambruna, F. Tombesi, J. N. Reeves +4
We present a long Suzaku observation of 3C 382. A Swift BAT spectrum from the 58-month survey is also analyzed, together with an archival XMM-Newton EPIC exposure. Our main result…
Evidence for a circum-nuclear and ionised absorber in the X-ray obscured BroadLine Radio Galaxy 3C 445
V. Braito, J. N. Reeves, R. M. Sambruna +1
Here we present the results of a Suzaku observation of the Broad Line Radio Galaxy 3C 445. We confirm the results obtained with the previous X-ray observations which unveiled the p…
Chandra high resolution spectroscopy of the circumnuclear matter in the Broad Line Radio Galaxy 3C445
J. N. Reeves, J. Gofford, V. Braito +1
We present evidence for X-ray line emitting and absorbing gas in the nucleus of the Broad-Line Radio Galaxy (BLRG), 3C 445. A 200ks Chandra LETG observation of 3C 445 reveals the p…
Fermi Gamma-ray Imaging of a Radio Galaxy
LAT Collaboration
The Fermi Gamma-ray Space Telescope has detected the gamma-ray glow emanating from the giant radio lobes of the radio galaxy Centaurus A. The resolved gamma-ray image shows the lob…
Discovery of ultra-fast outflows in a sample of Broad Line Radio Galaxies observed with Suzaku
F. Tombesi, R. M. Sambruna, J. N. Reeves +5
We present the results of a uniform and systematic search for blue-shifted Fe K absorption lines in the X-ray spectra of five bright Broad-Line Radio Galaxies (BLRGs) observed with…
Suzaku Observations of Luminous Quasars: Revealing the Nature of High-Energy Blazar Emission in Quiescent States
LAT Collaboration, A. A. Abdo, F. Tavecchio +5
We present the results from the Suzaku X-ray observations of five flat-spectrum radio quasars (FSRQs), namely PKS0208-512, Q0827+243, PKS1127-145, PKS1510-089 and 3C 454.3. All the…
Radio-Loud Narrow-Line Seyfert 1 as a New Class of Gamma-Ray AGN
LAT Collaboration, G. Ghisellini, L. Maraschi +1
We report the discovery with Fermi/LAT of gamma-ray emission from three radio-loud narrow-line Seyfert 1 galaxies: PKS 1502+036 (z=0.409), 1H 0323+342 (z=0.061) and PKS 2004-447 (z…
Fermi Large Area Telescope Gamma-Ray Detection of the Radio Galaxy M87
The Fermi LAT Collaboration, A. A. Abdo, D. E. Harris +2
We report the Fermi-LAT discovery of high-energy (MeV/GeV) gamma-ray emission positionally consistent with the center of the radio galaxy M87, at a source significance of over 10 s…
Polarimetry and the High-Energy Emission Mechanisms in Quasar Jets
M. Cara, E. S. Perlman, Y. Uchiyama +15
The emission mechanisms in extragalactic jets include synchrotron and various inverse-Compton processes. At low (radio through infrared) energies, it is widely agreed that synchrot…
Chandra detection of a parsec scale wind in the Broad Line Radio Galaxy 3C 382
J. N. Reeves, R. M. Sambruna, V. Braito +1
We present unambiguous evidence for a parsec scale wind in the Broad-Line Radio Galaxy (BLRG) 3C 382, the first radio-loud AGN, with $R_{\rm L} = \log_{10}(f_{\rm 5GHz}/f_{4400})>1…
Short-term variability and PSD analysis of the radio-loud AGN 3C 390.3
M. Gliozzi, I. E. Papadakis, M. Eracleous +4
We investigate the short-term variability properties and the power spectral density (PSD) of the Broad-Line Radio Galaxy (BLRG) 3C 390.3 using observations made by XMM, RXTE, and S…
Structure of the Accretion Flow in Broad-Line Radio Galaxies: The Case of 3C390.3
R. M. Sambruna, J. N. Reeves, V. Braito +8
We present XMM and Suzaku observations of the Broad-Line Radio Galaxy (BLRG) 3C390.3. The Fe Ka line has a width FWHM ~ 8,800 km/s, consistent within a factor two with the width of…
Fermi/LAT discovery of gamma-ray emission from a relativistic jet in the narrow-line quasar PMN J0948+0022
LAT Collaboration, A. A. Abdo, G. Ghisellini +3
We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy gamma-ray emission from the peculiar quasar PMN J0948+0022 (z=0…
Early Fermi Gamma-ray Space Telescope Observations of the Quasar 3C 454.3
LAT Collaboration, A. A. Abdo
This is the first report of Fermi Gamma-ray Space Telescope observations of the quasar 3C 454.3, which has been undergoing pronounced long-term outbursts since 2000. The data from…
Fermi Discovery of Gamma-Ray Emission from NGC 1275
LAT Collaboration, A. A. Abdo, H. D. Aller +6
We report the discovery of high-energy (E>100 MeV) gamma-ray emission from NGC 1275, a giant elliptical galaxy lying at the center of the Perseus cluster of galaxies, based on obse…
Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354
LAT Collaboration, A. A. Abdo, P. G. Edwards +4
We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy gamma-ray (GeV) emission from the flat-spectrum radio quasar PK…