PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
VERITAS Observations of MGRO J1908+06
T.K. Kleiner
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Pre-published on: August 17, 2023
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MGRO J1908+06 is an extended and powerful source of gamma-ray emission located at (lon$=40.39$, lat$=-0.79$). It was first detected by the Milagro observatory in a northern galactic plane survey in 2007.
It has been the subject of numerous studies in an effort to understand the origin of its gamma-ray emission. Several potential counterparts have been suggested, including the supernova remnant G40.5-0.5 and the pulsar J1907+0602. The observed Tera-electronvolt emission may originate from interactions between the pulsar wind nebula and molecular clouds or the supernova remnant shell. However, the question of the true nature of the source remains open, mainly due to the existence of multiple potential counterparts. Recent observations of emission exceeding several hundred TeV make MGRO J1908+06 a strong contender for a Pevatron — a source with the ability to accelerate particles to Peta-electronvolt energies. The detected emission at such high energies inidcates the presence of an extremely powerful and efficient particle acceleration mechanism within this source. Over a span of more than 10 years, the MGRO J1908+06 region has been observed by VERITAS for approximately 130h. This allows to study the energy dependent morphology of the source and a leptonic origin of the gamma-ray emission is investigated.
DOI: https://doi.org/10.22323/1.444.0762
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