Only a tiny fraction∼ 1% of stellar tidal disruption events (TDEs) generate powerful
relativistic jets evidenced by luminous hard X-ray and radio emissions. We propose that a …

ABSTRACT The Tidal Disruption Event (TDE) AT 2018hyz exhibited a delayed radio flare
almost three years after the stellar disruption. Here, we report new radio observations of the …

AT2022cmc was recently reported as the first on-axis jetted tidal disruption event (TDE)
discovered in the last decade, and the fourth on-axis jetted TDE candidate known so far. In …

The tidal disruption event AT2018hyz, was a regular optically detected one with no special
prompt features. However, almost three years after the disruption it suddenly displayed a fast …

A supermassive black hole can launch a relativistic jet when it violently disrupts a star that
passes too close. Such jetted tidal disruption events (TDEs) are rare and unique tools to …

We present the results of our multiwavelength (X-ray to radio) follow-up campaign of the
Einstein Probe transient EP240408a. The initial 10 s trigger displayed bright soft X-ray (0.5 …

We consider the synchrotron spectrum produced by mildly to highly relativistic collisionless
shocks. Simple analytic formulae are derived for the break frequencies (peak frequency, self …

Giant planets like Jupiter and Saturn, play important roles in the formation and habitability of
Earth-like planets. The detection of solar system analogs that have multiple cold giant …

Classical gamma-ray bursts (GRBs) have two distinct emission episodes: prompt emission
from ultrarelativistic ejecta and afterglow from shocked circumstellar material. While both …

For radio transients, an inverted spectrum (defined as $\alpha> 0$ for a power law spectrum
$ S_ {\nu}\propto\nu^{\alpha} $) constrains physical properties, which in principle can be a …