The gamma-ray source AGL J2241+4454 as the possible counterpart of MWC 656

Understand

The AGILE satellite discovered the transient source AGL J2241+4454 in 2010 which triggered the study of the associated field allowing for the discovery of the first Be/black hole binary system: MWC 656.

• This binary was suggested to be the counterpart of AGL J2241+4454, but this is still not a firm association.
• In this work we explore the archival AGILE and Fermi/LAT data in order to find more transient events originating in the field of AGL J2241+4454 and address the possibility to link them to the accretion/ejection processes of MWC 656.
• We found a total of 9 other transient events with AGILE compatible with the position of AGL J2241+4454, besides the one from 2010.