Alak Ray

TL;DR: The discovery of luminous radio emission from the seemingly ordinary type Ibc SN 2009bb, which requires a substantial relativistic outflow powered by a central engine, is reported.

TL;DR: The energetics and the rapid decay of the radio source are not compatible with the afterglow model that is usually invoked for γ-ray bursts, and it is suggested that the rapidly decaying radio emission arises from the debris ejected during the explosion.

TL;DR: The results of a broadband simultaneous campaign on the nearby low-luminosity active galactic nucleus M81*, from 2005 February through August, were presented in this paper, where Chandra X-Ray Observatory with the HETGS, complemented by ground-based observations with the Giant Meterwave Radio Telescope, the Very Large Array and very large baseline Array, the Plateau de Bure Interferometer at IRAM, the Submillimeter Array, and Lick Observatory.

TL;DR: In this article, the authors analyzed the light curves of SN 1993J at 1420, 610, 325, and 243 MHz during 7.5 years after the explosion and found that the supernova is undergoing a transition from an optically thick to optically thin limit in this frequency band.

TL;DR: In this paper, the authors present extensive radio and millimeter observations of the unusually bright GRB-130427A at z = 0.340, spanning 0.67-12 days after the burst.