First bounds on the very high energy gamma-ray emission from Arp 220
Abstract
Description
Using the Major Atmospheric Gamma Imaging Cherenkov Telescope (MAGIC), we have observed the nearest ultra-luminous infrared galaxy Arp 220 for about 15 hours. No significant signal was detected within the dedicated amount of observation time. The first upper limits to the very high energy $γ$-ray flux of Arp 220 are herein reported and compared with theoretical expectations.
Accepted for publication in ApJ
Accepted for publication in ApJ