Browsing by Subject "Extragalactic radio sources"

Now showing items 1-3 of 3

Anomalous heating of quasar emission-line regions

Krishan, V (Royal Astronomical Society, 1987-06)

It is shown that the non-thermal radio radiation from a quasar is intense enough to drive parametric instabilities in the fully ionized emission-line regions. These instabilities cause significant enhancement of the plasma ...
Raman scattering of the synchrotron self-absorbed radiation in accretion discs

Krishan, V (Royal Astronomical Society, 1988-01)

The quasar non-thermal continuum in the radio region can undergo Raman scattering in the accretion disc plasma around the central black hole provided that the frequency and the wave vector matching and the threshold ...
SN2019wxt: An Ultrastripped Supernova Candidate Discovered in the Electromagnetic Follow-up of a Gravitational Wave Trigger

Shivkumar, Hinna; Jaodand, Amruta D.; Balasubramanian, Arvind; Fremling, Christoffer; Corsi, Alessandra; Tzanidakis, Anastasios; Nissanke, Samaya; Kasliwal, Mansi; Brightman, Murray; Raaijmakers, Geert; Madsen, Kristin Kruse; Harrison, Fiona; Carbone, Dario; Nayana, A. J; Désert, Jean-Michel; Andreoni, Igor (American Astronomical Society, 2023-07-20)

We present optical, radio, and X-ray observations of a rapidly evolving transient SN2019wxt (PS19hgw), discovered during the search for an electromagnetic counterpart to the gravitational-wave (GW) trigger S191213g. Although ...

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