Gas kinematics in powerful radio galaxies at z ~ 2: Energy supply from star formation, AGN, and radio jets [PDF]
, 2016 We compare the kinetic energy and momentum injection rates from intense star formation, bolometric AGN radiation, and radio jets with the kinetic energy and momentum observed in the warm ionized gas in 24 powerful radio galaxies at z~2.
N. Nesvadba +5 more
semanticscholar +1 more source
KILOPARSEC-SCALE JETS IN THREE RADIO-LOUD NARROW-LINE SEYFERT 1 GALAXIES [PDF]
, 2015 We have discovered kiloparsec-scale extended radio emission in three narrow-line Seyfert 1 galaxies (NLS1s) in sub-arcsecond resolution 9 GHz images from the Karl G. Jansky Very Large Array.
J. Richards, M. Lister
semanticscholar +1 more source
Relativistic Jets from Active Galactic Nuclei [PDF]
Annual Review of Astronomy and Astrophysics, 2018 The nuclei of most normal galaxies contain supermassive black holes, which can accrete gas through a disk and become active. These active galactic nuclei (AGNs) can form jets that are observed on scales from astronomical units to megaparsecs and from ...
R. Blandford, D. Meier, A. Readhead
semanticscholar +1 more source
NON-THERMAL RADIATION FROM COLLISIONS OF COMPACT OBJECTS WITH INTERMEDIATE-SCALE JETS IN ACTIVE GALAXIES [PDF]
, 2015 Massive black holes in active galaxies are immersed in huge concentrations of late-type stars in the galactic bulges and also early-type massive stars in the nuclear stellar clusters, which are additionally surrounded by quasi-spherical halos on a scale ...
W. Bednarek, P. Banasiński
semanticscholar +1 more source
Progress in unveiling extreme particle acceleration in persistent astrophysical jets [PDF]
, 2020 The most powerful persistent accelerators in the Universe are jetted active galaxies. Blazars, galaxies whose jets are directed towards Earth, dominate the extragalactic γ-ray sky.
J. Biteau +9 more
semanticscholar +1 more source
Systematic properties of decelerating relativistic jets in low-luminosity radio galaxies [PDF]
, 2013 We model the kiloparsec-scale synchrotron emission from jets in 10 Fanaroff-Riley Class I radio galaxies for which we have sensitive, high-resolution imaging and polarimetry from the Very Large Array. We assume that the jets are intrinsically symmetrical,
R. Laing, A. Eso, Nrao
semanticscholar +1 more source
On the efficiency of jet production in radio galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 The mechanisms that produce and power relativistic jets are fundamental open questions in black hole (BH) astrophysics. In order to constrain these mechanisms, we analyze the energy efficiency of jet production 'eta' based on archival Chandra observations of 27 nearby, low-luminosity active galactic nuclei. We obtain 'eta' as the ratio of the jet power,
Rodrigo Nemmen +4 more
openaire +3 more sources
Jet-cloud collisions in the jet of the Seyfert galaxy NGC 3079 [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 11 pages, 9 figures, needs aas_macros.sty and mn2e ...
Iván Agudo +4 more
openaire +3 more sources
VLBA AND CHANDRA OBSERVATIONS OF JETS IN FRI RADIO GALAXIES: CONSTRAINTS ON JET EVOLUTION [PDF]
, 2012 We present here the results from new Very Long Baseline Array (VLBA) observations at 1.6 and 5 GHz of 19 galaxies of a complete sample of 21 Uppasala General Catalog (UGC) Fanaroff–Riley type I (FRI) radio galaxies. New Chandra data of two sources, viz.,
P. Kharb +10 more
semanticscholar +1 more source
Electron–positron pairs in blazar jets and γ-ray loud radio galaxies [PDF]
, 2012 The matter content of extragalactic relativistic jets is still an unsolved issue. There are strong arguments against pure electron–positron pair jets, but pairs could outnumber the electrons associated with protons by a factor of 10–20.
G. Ghisellini
semanticscholar +1 more source