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)

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

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
46593	1	Solar, stellar and cosmological plasmas: a synthesis of data, modelling and theory.	Declan Diver	Science & Technologies Facilities Council (STFC)	ST/F002149/1	Physics and Astronomy