Lepton models for TeV emission from SNR RX J1713.7-3946

Fan, Z.H., Liu, S., Yuan, Q. and Fletcher, L. (2010) Lepton models for TeV emission from SNR RX J1713.7-3946. Astronomy and Astrophysics, 517(L4), (doi:10.1051/0004-6361/201015169)

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Publisher's URL: http://dx.doi.org/10.1051/0004-6361/201015169

Abstract

<p><b>Aims:</b> SNR RX J1713.7-3946 is perhaps one of the best observed shell-type supernova remnants with emissions dominated by energetic particles accelerated near the shock front. The nature of the TeV emission, however, is an issue still open to investigation.</p> <p><b>Methods:</b> We carried out a systematic study of four lepton models for the TeV emission with the Markov chain Monte Carlo method.</p> <p><b>Results:</b> It is shown that current data already give good constraints on the model parameters. Two commonly used parametric models do not appear to fit the observed radio, X-ray, and γ-ray spectra. Models motivated by diffusive shock acceleration and by stochastic acceleration by compressive waves in the shock downstream give comparably good fits. The former has a sharper spectral cutoff in the hard X-ray band than the latter. Future observations with the HXMT and NuSTAR may distinguish these two models.</p>

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Fletcher, Professor Lyndsay and Liu, Dr Siming
Authors: Fan, Z.H., Liu, S., Yuan, Q., and Fletcher, L.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astronomy and Astrophysics
Publisher:EDP Sciences
ISSN:0004-6361
ISSN (Online):1432-0746
Copyright Holders:Copyright © 2010 EDP Sciences
First Published:First published in Astronomy and Astrophysics 517(L4)
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
465931Solar, stellar and cosmological plasmas: a synthesis of data, modelling and theory.Declan DiverScience & Technologies Facilities Council (STFC)ST/F002149/1Physics and Astronomy