Modeling the shell type TeV supernove remnant RX J1713-3946

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We simulate the shock waves of shell type supernova remnants with a prototype progenitor of 15 M{sub {circle_dot}} and fit the size and lifetime of SNR RX J1713-3946 with a density of {approx} 1O{sup -26}g cm{sup -3} for the shocked downstream plasma. Such a density is required for efficient stochastic electron acceleration and leads to a thermal X-ray flux more than one order of magnitude lower than the observed featureless X-ray flux. Fast mode waves must be excited to have efficient stochastic electron acceleration. We find that (1) the acceleration efficiency needs to be at least 10 times higher than ... continued below

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Fryer, Christopher Lee; Fan, Zhonghui & Liu, Siming January 1, 2009.

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We simulate the shock waves of shell type supernova remnants with a prototype progenitor of 15 M{sub {circle_dot}} and fit the size and lifetime of SNR RX J1713-3946 with a density of {approx} 1O{sup -26}g cm{sup -3} for the shocked downstream plasma. Such a density is required for efficient stochastic electron acceleration and leads to a thermal X-ray flux more than one order of magnitude lower than the observed featureless X-ray flux. Fast mode waves must be excited to have efficient stochastic electron acceleration. We find that (1) the acceleration efficiency needs to be at least 10 times higher than that through the cyclotron resonances, implying much more efficient acceleration through the transit-time damping process, and (2) the distribution of the accelerated electrons is very sensitive to the ratio of the speed in the downstream to the shock suggesting a dynamo process that can regulate the magnetic field in such a way that the electron distribution doesn't change dramatically throughout the evolution history of the shock waves.

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  • Journal Name: Astrophysical Journal

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  • Report No.: LA-UR-09-01031
  • Report No.: LA-UR-09-1031
  • Grant Number: AC52-06NA25396
  • Office of Scientific & Technical Information Report Number: 956439
  • Archival Resource Key: ark:/67531/metadc931399

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  • January 1, 2009

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 12:25 p.m.

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Fryer, Christopher Lee; Fan, Zhonghui & Liu, Siming. Modeling the shell type TeV supernove remnant RX J1713-3946, article, January 1, 2009; [New Mexico]. (digital.library.unt.edu/ark:/67531/metadc931399/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.