This tag is associated with 3 posts

The Cosmic γ-Ray Horizon

In today’s astrobite, we discuss the opacity of the Universe to high energy photons. The cosmic gamma-ray horizon, constrained by the authors of this paper, is a measure of this opacity, a cosmological probe and means of estimating blazar redshifts.

What Makes GRBs and Blazars Shine?

We think that blazars and gamma-ray bursts are both powered by extremely relativistic jets — but how is the kinetic energy of these jets transformed into the staggering amounts of radiation we observe?

Tidal Disruption Event

Interpreting a Galactic Burp

What happens when a normally-dormant black hole at the center of a galaxy tears apart a passing star and burps it back out again in the form of a jet? The authors of this paper think that the Swift satellite has recently witnessed exactly this!

Email Subscription

Follow us on Twitter

Like us on Facebook

Astroplots Astroplots to explore astronomy research through data representation.


Our sister site