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.
Enter your email address to subscribe to Astrobites and receive notifications of new posts by email.
© 2015 astrobites. All Rights Reserved.
Powered by WordPress. Designed by