The Cherenkov Telescope Array view of the Galactic Center region
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.
arXiv commentProceedings of the 36th International Cosmic Ray Conference, PoS(ICRC2019)817, 8 pages, 4 figures
References in corpus (10)
- Fermi Large Area Telescope Bright Gamma-ray Source List
- Acceleration of petaelectronvolt protons in the Galactic Centre
- The Spectrum and Morphology of the Fermi Bubbles
- An X-ray, IR, and Submillimeter Flare of Sagittarius A*
- PICARD: A novel code for the Galactic Cosmic Ray propagation problem
- Spectrum and variability of the Galactic Center VHE gamma-ray source HESS J1745-290
- The Morphology of Hadronic Emission Models for the Gamma-Ray Source at the Galactic Center
- Localising the VHE gamma-ray source at the Galactic Centre
- NuSTAR observation of a Type I X-ray burst from GRS 1741.9-2853
- TeV Gamma Rays From Galactic Center Pulsars