Results 51 to 60 of about 1,242,014 (263)
Interaction of jets with the ISM of radio galaxies [PDF]
Astrophysics and Space Science, 2007 We present three dimensional simulations of the interaction of a light hypersonic jet with an inhomogeneous thermal and turbulently supported disk in an elliptical galaxy, including Radio and multi-band X-ray visualisations. These simulations are applicable to the GPS/CSS phase of some extragalactic radio sources. We identify four generic phases in the
Sutherland, Ralph, Bicknell, Geoffrey
openaire +5 more sources
Tracing the extreme interplay between radio jets and the ISM in IC 5063 [PDF]
, 2013 We report the discovery with the Atacama Pathfinder EXperiment (APEX) of an outflow of molecular gas in the radio-loud Seyfert galaxy IC 5063 (z = 0.0110).
R. Morganti +4 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
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
The Astrophysical Journal Letters, 2023 Only a tiny fraction ∼1% of stellar tidal disruption events (TDEs) generate powerful relativistic jets evidenced by luminous hard X-ray and radio emissions.
Odelia Teboul, Brian D. Metzger
doaj +1 more source
The Particle Content of Extragalactic Jets [PDF]
Astrophys.J.648:200-208,2006, 2006 Recent x-ray and radio data from radio sources in galaxy clusters are used to show that the pdV work required to inflate the radio lobes exceeds all other energy estimates deduced from the radio emission. If the required jet energy density has an isotropic pressure, then in almost all cases the jet cannot be confined by an external medium. This problem
arxiv +1 more source
HORIZON-SCALE LEPTON ACCELERATION IN JETS: EXPLAINING THE COMPACT RADIO EMISSION IN M87 [PDF]
, 2015 It has now become clear that the radio jet in the giant elliptical galaxy M87 must turn on very close to the black hole. This implies the efficient acceleration of leptons within the jet at scales much smaller than feasible by the typical dissipative ...
A. Broderick, A. Tchekhovskoy
semanticscholar +1 more source
A STUDY OF RADIO POLARIZATION IN PROTOSTELLAR JETS [PDF]
The Astrophysical Journal, 2016 ABSTRACT Synchrotron radiation is commonly observed in connection with shocks of different velocities, ranging from relativistic shocks associated with active galactic nuclei, gamma-ray bursts, or microquasars, to weakly or non-relativistic flows such as those observed in supernova remnants. Recent observations of synchrotron emission in
Mariana Cécere +6 more
openaire +4 more sources
INVESTIGATING PARTICLE ACCELERATION IN PROTOSTELLAR JETS: THE TRIPLE RADIO CONTINUUM SOURCE IN SERPENS [PDF]
, 2015 While most protostellar jets present free–free emission at radio wavelengths, synchrotron emission has also been proposed to be present in a handful of these objects.
A. Rodríguez-Kamenetzky +7 more
semanticscholar +1 more source
Relativistic jets in narrow-line Seyfert 1 galaxies. New discoveries and open questions
EPJ Web of Conferences, 2013 Before the launch of the Fermi satellite only two classes of AGNs were known to produce relativistic jets and thus emit up to the γ-ray energy range: blazars and radio galaxies, both hosted in giant elliptical galaxies.
D’Ammando F. +4 more
doaj +1 more source