Hadronic gamma-rays from RX J1713.7-3946?

Abstract

RXJ1713.7-3946 is a key object to check the supernova remnant paradigm of the origin of Galactic cosmic rays. While the origin of its gamma-ray emission (hadronic versus leptonic) is still debated, the hard spectrum at GeV energies reported by the Fermi collaboration is generally interpreted as a strong argument in favor of a leptonic scenario. On the contrary, we show that hadronic interactions can naturally explain the gamma-ray spectrum if gas clumps are present in the supernova remnant shell. The absence of thermal X-rays from the remnant fits well within this scenario.

4 pages, 2 figures. submitted

References in corpus (8)

• Primary particle acceleration above 100 TeV in the shell-type Supernova Remnant RX J1713.7-3946 with deep H.E.S.S. observations
• Observations of the young supernova remnant RX J1713.7-3946 with the Fermi Large Area Telescope
• Study of Nonthermal Emission from SNR RX J1713.7-3946 with Suzaku
• Gamma rays from molecular clouds
• Gamma ray emission from SNR RX J1713.7-3946 and the origin of galactic cosmic rays
• In which shell-type SNRs should we look for gamma-rays and neutrinos from p-p collisions?
• Modeling the Multi-Wavelength Emission of Shell-Type Supernova Remnant RX J1713.7-3946
• Hadronic versus leptonic origin of the gamma-ray emission from Supernova Remnant RX J1713.7-3946

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