C.D.S. - SIMBAD4 rel 1.7 - 2021.01.18CET03:19:15

2002A&A...390L..43R - Astronomy and Astrophysics, volume 390, L43-46 (2002/8-2)

No evidence yet for hadronic TeV gamma-ray emission from SNR RX J1713.7-3946.


Abstract (from CDS):

Recent TeV-scale γ-ray observations with the CANGAROO II telescope have led to the claim that the multi-band spectrum of RX J1713.7-3946 cannot be explained as the composite of a synchrotron and an inverse Compton component emitted by a population of relativistic electrons. It was argued that the spectrum of the high-energy emission is a good match to that predicted by pion decay, thus providing observational evidence that protons are accelerated in SNR to at least TeV energies. In this Letter we discuss the multi-band spectrum of RX J1713.7-3946 under the constraint that the GeV-scale emission observed from the closely associated EGRET source 3EG J1714-3857 is either associated with the SNR or an upper limit to the gamma-ray emission of the SNR. We find that the pion-decay model adopted by Enomoto et al. is in conflict with the existing GeV data. We have examined the possibility of a modified proton spectrum to explain the data, and find that we cannot do so within any existing theoretical framework of shock acceleration models.

Abstract Copyright:

Journal keyword(s): ISM: cosmic rays - ISM: supernova remnants - gamma rays: observations

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 NAME Lupus SN SNR 15 02 22.1 -42 05 49           ~ 1223 1
2 SNR G347.3-00.5 SNR 17 12 27 -39 41.2     12.27     ~ 628 1
3 SNR G348.5+00.1 SNR 17 14 31.780 -38 28 34.50           ~ 200 3
4 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2462 1

    Equat.    Gal    SGal    Ecl

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