Report/Contribution to a conference proceedings

PUBDB-2020-00186

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The Cherenkov Telescope Array view of the Galactic Center region

Viana, A. (Corresponding author) ; Ventura, S. ; Gaggero, D. ; Grasso, D. ; Malyshev, D. ; Kosack, K. ; Funk, S. ; D'Ai, A. ; Alves Batista, R. ; Blackwell, R. ; Burtovoi, A. ; Caraveo, P. A. ; Chernyakova, M. ; Da Vela, P. ; De Cesare, G. ; de Gouveia Dal Pino, E. M. ; Wilhelmi, E. d. O. ; Filipovic, M. ; Fiori, M. ; Minaya, I. A. ; Rodríguez-Ramírez, J. C. ; Rowell, G. ; Rugliancich, A. ; Sergijenko, O. ; Zampieri, L. ; Consortium, C.

2019

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Please use a persistent id in citations: doi:10.3204/PUBDB-2020-00186

Report No.: arXiv:1908.06162

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.

Keyword(s): gamma ray: emission ; Cherenkov Telescope Array ; galaxy ; cosmic radiation ; observatory ; black hole ; structure ; supernova ; pulsar ; bubble ; cloud ; star

Note: Proceedings of the 36th International Cosmic Ray Conference, PoS(ICRC2019)817, 8 pages, 4 figures

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Contributing Institute(s):

1. Cherenkov Telescope Array (ZEU-CTA)
2. High Energy Steroscopic System (ZEU-HESS)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF3-613) (POF3-613)

Experiment(s):

1. Cherenkov Telescope Array

Appears in the scientific report 2019

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