The starburst galaxy NGC 253 revisited by H.E.S.S. and Fermi-LAT

Publisher： Edp Sciences

E-ISSN： 1432-0746|617|issue|A73-A73

ISSN： 0004-6361

Source： Astronomy & Astrophysics, Vol.617, Iss.issue, 2018-09, pp. : A73-A73

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

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Abstract

Context. NGC 253 is one of only two starburst galaxies found to emit γ-rays from hundreds of MeV to multi-TeV energies. Accurate measurements of the very-high-energy (VHE; E > 100 GeV) and high-energy (HE; E > 60 MeV) spectra are crucial to study the underlying particle accelerators, probe the dominant emission mechanism(s) and to study cosmic-ray interaction and transport.

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