Results 21 to 30 of about 1,242,014 (263)
Prevalence of radio jets associated with galactic outflows and feedback from quasars [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present 1–7 GHz high-resolution radio imaging (VLA and e-MERLIN) and spatially resolved ionized gas kinematics for 10 z < 0.2 type 2 ‘obscured’ quasars (log [LAGN/erg s−1] ≳ 45) with moderate radio luminosities ($\log [L_{\rm {1.4\,GHz}}$/W Hz−1] =
M. Jarvis +12 more
semanticscholar +1 more source
What Drives the Ionized Gas Outflows in Radio-Quiet AGN?
Galaxies, 2023 We review the mechanisms driving the ionized gas outflows in radio-quiet (RQ) AGN. Although it constitutes ∼90% of the AGN population, what drives these outflows in these AGNs remains an open question. High-resolution imaging and integral field unit (IFU)
Mainak Singha +2 more
doaj +1 more source
Radio jets from young stellar objects [PDF]
The Astronomy and Astrophysics Review, 2018 Jets and outflows are ubiquitous in the process of formation of stars since outflow is intimately associated with accretion. Free–free (thermal) radio continuum emission in the centimeter domain is associated with these jets.
G. Anglada +2 more
semanticscholar +1 more source
Offsets between X-Ray and Radio Components in X-Ray Jets: The AtlasX
The Astrophysical Journal Supplement Series, 2023 The X-ray emission mechanism of powerful extragalactic jets—which has important implications for their environmental impacts—is poorly understood. The X-ray/radio positional offsets in the individual features of jets provide important clues.
Karthik Reddy +4 more
doaj +1 more source
Radio jets from AGNs in dwarf galaxies in the COSMOS survey: mechanical feedback out to redshift ∼3.4 [PDF]
Monthly notices of the Royal Astronomical Society, 2019 Dwarf galaxies are thought to host the remnants of the early Universe seed black holes (BHs) and to be dominated by supernova feedback. However, recent studies suggest that BH feedback could also strongly impact their growth. We report the discovery of
M. Mezcua, H. Suh, F. Civano
semanticscholar +1 more source
Narrow-Line Seyfert 1 Galaxies With Absorbed Jets–Insights From Radio Spectral Index Maps
Frontiers in Astronomy and Space Sciences, 2021 Narrow-line Seyfert 1 (NLS1) galaxies are active galactic nuclei (AGN) believed to be in the early stages of their evolution. A fraction of them have been found to host relativistic jets.
Emilia Järvelä +3 more
doaj +1 more source
Radio jets and gamma-ray emission in radio-silent narrow-line Seyfert 1 galaxies [PDF]
Astronomy & Astrophysics, 2018 We have detected six narrow-line Seyfert 1 (NLS1) galaxies at 37 GHz that were previously classified as radio silent and two that were classified as radio quiet.
A. Lähteenmäki +6 more
semanticscholar +1 more source
Fast-spinning Black Holes Inferred from Symmetrically Limb-brightened Radio Jets [PDF]
Astrophysical Journal, 2018 This paper theoretically investigates the relations between the structure of relativistic jets and produced synchrotron images, by using a steady, axisymmetric force-free jet model.
Kazuya Takahashi +4 more
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source