Results 71 to 80 of about 1,259,005 (366)
The Astrophysical Journal, 2023 Dual and off-nucleus active supermassive black holes are expected to be common in the hierarchical structure formation paradigm, but their identification at parsec scales remains a challenge due to strict angular resolution requirements.
Yu-Ching Chen +7 more
doaj +1 more source
Radio Jet and Lobe of 3C273 [PDF]
Symposium - International Astronomical Union, 1986 The ‘superluminal’ motion observed in the cores of radio sources such as 3C273 is now accepted as evidence of relativistic motion within a few parsecs of the centre, but it is less clear whether such speeds persist out to kiloparsec scales. The one-sidedness of such sources is often cited as evidence of relativistic Doppler beaming, but could equally ...
openaire +2 more sources
Interaction of Fanaroff–Riley class II radio jets with a randomly magnetized intracluster medium [PDF]
, 2011 M. Huarte-Espinosa, M. Krause, and P. Alexander, 'Interaction of Fanaroff–Riley class II radio jets with a randomly magnetized intracluster medium', Monthly Notices of the Royal Astronomical Society, Vol. 418, pp.
M. Huarte-Espinosa +2 more
semanticscholar +1 more source
First detection of thermal radio jets in a sample of proto-brown dwarf candidates [PDF]
, 2015 We observed with the JVLA at 3.6 and 1.3 cm a sample of 11 proto-brown dwarf candidates in Taurus in a search for thermal radio jets driven by the most embedded brown dwarfs.
Barrado, D. +12 more
core +2 more sources
Identifying a Point-Symmetrical Morphology in the Core-Collapse Supernova Remnant W44
UniverseI identify a point-symmetrical morphology in the core-collapse supernova remnant (CCSNR) W44 compatible with shaping by three or more pairs of jets in the jittering jets explosion mechanism (JJEM). Motivated by recent identifications of point-symmetrical
Noam Soker
doaj +1 more source
Radio jets from stellar tidal disruptions [PDF]
, 2011 A star that passes too close to a massive black hole will be torn apart by tidal forces. The flare of photons emitted during the accretion of the stellar debris is predicted to be observable, and candidates of such events have been observed at optical to
S. Velzen, E. Koerding, H. Falcke
semanticscholar +1 more source
A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam +2 more
wiley +1 more source
Effect of Expansion and Magnetic Field Configuration on Mass Entrainment of Jets [PDF]
, 1999 We investigate the growth of jet plus entrained mass in simulations of supermagnetosonic cylindrical and expanding jets. The entrained mass spatially grows in three stages: from an initially slow spatial rate to a faster rate and finally at a flatter ...
A. Rosen +14 more
core +3 more sources
Vistas in Astronomy, 1997 The observational evidence for jets and phenomena arising from rotation powered radio pulsars is reviewed, including many recent and exciting discoveries at X-ray wavelengths. The well studied jets of the Crab pulsar are summarised, including recent results from the HST.
openaire +3 more sources
Bent Jets in Radio Quasars [PDF]
Symposium - International Astronomical Union, 1982 How is energy transported out from the central engine in quasars and radio galaxies to the distant radio lobes? This problem has been around since the early discovery of classical double radio sources, and is still not answered in detail. The idea of relativistic beams was first suggested by Martin Rees as a means of transporting plasma out of the ...
openaire +2 more sources