The Cherenkov Telescope Array view of the Galactic Center region
Abstract
Among all the high-energy environments of our Galaxy, the Galactic Center (GC) region is definitely the richest. It harbors a large amount of non-thermal emitters, including the closest supermassive black hole, dense molecular clouds, regions with strong star forming activity, multiple supernova remnants and pulsar wind nebulae, arc-like radio structures, as well as the base of what may be large-scale Galactic outflows, possibly related to the Fermi Bubbles. It also contains a strong diffuse TeV gamma-ray emission along the Galactic ridge, with a disputed origin, including the presence of a possible Pevatron, unresolved sources, and an increased relevance of the diffuse sea of cosmic rays. This very rich region will be one of the key targets for the next generation ground-based observatory for gamma-ray astronomy, the Cherenkov Telescope Array (CTA). Here we review the CTA science case for the study of the GC region, and present the planned survey strategy. These observations are simulated and we assess CTA's potential to better characterize the origin and nature of a selection of gamma-ray sources in the region.
Cite
@article{arxiv.1908.06162,
title = {The Cherenkov Telescope Array view of the Galactic Center region},
author = {Aion Viana and Sofia Ventura and Daniele Gaggero and Dario Grasso and Dmitry Malyshev and Karl Kosack and Stefan Funk and Antonino D'Ai and Rafael Alves Batista and Rebecca Blackwell and Aleksandr Burtovoi and Patrizia A. Caraveo and Masha Chernyakova and Paolo Da Vela and Giovanni De Cesare and Elisabete M. de Gouveia Dal Pino and Emma de Oña Wilhelmi and Miroslav Filipovic and Michele Fiori and Ignacio A. Minaya and Juan Carlos Rodríguez-Ramírez and Gavin Rowell and Andrea Rugliancich and Olga Sergijenko and Luca Zampieri},
journal= {arXiv preprint arXiv:1908.06162},
year = {2019}
}
Comments
Proceedings of the 36th International Cosmic Ray Conference, PoS(ICRC2019)817, 8 pages, 4 figures