Results 91 to 100 of about 217,086 (193)

No Galaxy-scale [C ii] Fast Outflow in the z = 6.72 Red Quasar HSC J1205–0000

The Astrophysical Journal
HSC 120505.09-000027.9 (J1205–0000) is one of the highest redshift ( z = 6.72) dust-reddened quasars (red quasars) known to date. We present an improved analysis of Atacama Large Millimeter/submillimeter Array data of the [C  ii ] 158 μ m line and the ...
Mahoshi Sawamura, Takuma Izumi, Kouichiro Nakanishi, Takeshi Okuda, Michael A. Strauss, Masatoshi Imanishi, Yoshiki Matsuoka, Yoshiki Toba, Hideki Umehata, Takuya Hashimoto, Shunsuke Baba, Tomotsugu Goto, Toshihiro Kawaguchi, Kotaro Kohno, Dragan Salak, Taiki Kawamuro, Kazushi Iwasawa, Masafusa Onoue, Chien-Hsiu Lee, Kianhong Lee   +19 more
doaj   +1 more source

Cosmic ray feedback in galaxies and galaxy clusters: A pedagogical introduction and a topical review of the acceleration, transport, observables, and dynamical impact of cosmic rays. [PDF]

Astron Astrophys Rev, 2023
Ruszkowski M, Pfrommer C.
europepmc   +1 more source

The Broad Line Region in Active Galactic Nuclei [PDF]

arXiv, 2000
We review constraints on models of the broad line region that are imposed by observations of the emission lines in Active Galactic Nuclei. Comparison of high and low ionization lines in sources with FWHM Hbeta < 4000 km/s points toward low ionization line emission produced in a flattened geometry (the accretion disk?) with an associated high ionization
arxiv  

The VLBA 2cm Survey: Kinematics of pc-Scale Structures in Active Galactic Nuclei [PDF]

arXiv, 2002
The kinematics of jets in active galactic nuclei (QSOs, BL Lacs, Radio Galaxies and Empty Field objects) on parsec scales is being studied with Very Long Baseline Array observations at 15 GHz of a sample of more than 170 radio sources. More than 1000 images have been taken since 1994.
arxiv  

Jet reorientation in active galactic nuclei: two winged radio galaxies [PDF]

, 2002
J. Dennett-Thorpe, P. A. G. Scheuer, R. A. Laing, A. H. Bridle, G. G. Pooley, W. Reich   +5 more
openalex   +1 more source

Powerful Radio-loud Quasars Are Triggered by Galaxy Mergers in the Cosmic Bright Ages

The Astrophysical Journal
While supermassive black holes are ubiquitous features of galactic nuclei, only a small minority are observed during episodes of luminous accretion. The physical mechanism(s) driving the onset of fueling and ignition in these active galactic nuclei (AGN)
Peter Breiding, Marco Chiaberge, Erini Lambrides, Eileen T. Meyer, S. P. Willner, Bryan Hilbert, Martin Haas, George Miley, Eric S. Perlman, Peter Barthel, Christopher P. O’Dea, Alessandro Capetti, Belinda Wilkes, Stefi A. Baum, Duccio F. Macchetto, William Sparks, Grant Tremblay, Colin Norman   +17 more
doaj   +1 more source

Relation between radio core length and black hole mass for active galactic nuclei [PDF]

, 2002
Xinwu Cao, Dongrong Jiang
openalex   +1 more source

Testing of Inverse Compton Models for Active Galactic Nuclei with Gamma‐Ray and Radio Observations [PDF]

, 2003
A. Lähteenmäki, E. Valtaoja
openalex   +1 more source

Constraining the Location of the γ-Ray Emission Region in Radio-loud AGN 3C 380

The Astrophysical Journal
A detailed broadband spectral and temporal study of a radio-loud active galactic nucleus, 3C 380, is carried out using 14.5 yr of Fermi-LAT data, available Swift observations, and data from other observatories, including AstroSat (2020 August).
Sanna Gulati, Debbijoy Bhattacharya, P. Sreekumar   +2 more
doaj   +1 more source

Radio-loud Active Galactic Nuclei in the Context of the Eigenvector 1 Parameter Space [PDF]

, 2003
J. W. Sulentic, S. Zamfir, P. Marziani, R. Bachev, M. Calvani, D. Dultzin‐Hacyan   +5 more
openalex   +1 more source