PoS - Proceedings of Science
Volume 275 - 4th Annual Conference on High Energy Astrophysics in Southern Africa (HEASA 2016) - AGN I (Chair: M Bottcher)
Prospects for very high energy observations of Starburst/Seyfert galaxies
A. Chen*, N. Shafi and S. Colafrancesco
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Published on: June 23, 2017
A handful of non-blazar galaxies, including both Seyfert and starburst galaxies, have been observed to emit gamma-rays by the Fermi Gamma-ray Space Telescope. For one of these objects, NGC 1068, a starburst galaxy which is also the brightest and closest Seyfert 2, a galactic outflow driven by the active nucleus is a likely source of both the radio and gamma-ray spectra, and we compare this case to other possible explanations including starburst activity and blazar-like jet emission. Other galaxies with both starburst and Seyfert characteristics, including NGC 4945, NGC 253, Circinus, and NGC 3256, show varying degrees of evidence of starburst, AGN mini-jet and AGN-driven outflow. Given the existence of various possible emission mechanisms operating at high energies, we discuss prospects for observations of starburst/Seyfert galaxies with Fermi, HESS and the Cerenkov Telescope Array (CTA), as well as future neutrino telescopes such as KM3NeT.
DOI: https://doi.org/10.22323/1.275.0018
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