Results 11 to 20 of about 93,893 (293)
Quasi-periodic oscillations of GHz-band polarization in a black hole [PDF]
Nature CommunicationsRelativistic jets from accreting black holes radiate non-thermal emission which is highly variable in different time scales. Previous studies on black holes of different mass scales, including supermassive and stellar-mass black holes, only report flux ...
Wei Wang +12 more
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Symposium - International Astronomical Union, 1984 Models are here presented interpreting the arcsecond radio structure found in the quasar 3C418 as a precessing jet. No simple solution exists and it has been found necessary to complicate the model geometry by allowing the precession cone-angle to increase with time.
T.W.B. Muxlow, M. Jullian, R. Linfield
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Radio jets: Properties, life and impact [PDF]
Proceedings of the International Astronomical Union, 2019 AbstractOur view of the properties of extragalactic radio jets and the impact they have on the host galaxy has expanded in the recent years. This has been possible thanks to the data from new or upgraded radio telescopes. This review briefly summarises the current status of the field and describes some of the exciting recent results and the surprises ...
openaire +3 more sources
Relativistic superluminal radio jets in microquasars in our galaxy [PDF]
, 2006 We discuss the origin of superluminal radio jets in Black hole X-ray binaries with relativistic radio jets in our Galaxy popularly known as microquasars.
Yadav, J S
core +2 more sources
Galaxies, 2021 The radiative and jet power in active galactic nuclei is generated by accretion of material on to supermassive galactic-centre black holes. For quasars, where the radiative power is by definition very high, objects with high radio luminosities form 10 ...
Gülay Gürkan +5 more
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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 ...
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Chandra Discovery of 10 New X-Ray Jets Associated With FR II Radio Core-Selected AGNs in the MOJAVE Sample [PDF]
, 2010 The Chandra X-ray observatory has proven to be a vital tool for studying high-energy emission processes in jets associated with Active Galactic Nuclei (AGN).We have compiled a sample of 27 AGN selected from the radio flux-limited MOJAVE (Monitoring of ...
Blackburn +28 more
core +3 more sources
Simulations of Precessing Jets and the Formation of X-shaped Radio Galaxies
The Astrophysical Journal, 2023 Jet precession is sometimes invoked to explain asymmetries in radio galaxy (RG) jets and “X/S/Z-shaped” RGs, caused by the presence of a binary black hole companion to the source active galactic nucleus or by accretion instabilities.
Chris Nolting, Jay Ball, Tri M. Nguyen
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The Astronomical Journal, 1992 High-sensitivity VLA observations of M51 at 6 cm wavelength with sub-arcsecond resolution have resolved the southern extra-nuclear cloud identified by Ford et al. [ApJ, 293, 132 (1985)]. These observations reveal a short (3-4"), sinuous jetlike feature connecting the weak nuclear radio source to a bright arcuate ridge of radio emission that dominates ...
CRANE, PC, VANDERHULST, JM
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Statistical multifrequency study of narrow-line Seyfert 1 galaxies [PDF]
, 2014 High-energy {\gamma}-rays, which are produced by powerful relativistic jets, are usually associated with blazars and radio galaxies. In the current active galactic nuclei (AGN) paradigm, such jets are almost exclusively launched from massive elliptical ...
Järvelä, Emilia +2 more
core +1 more source