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dc.contributor.authorFraschetti, F.
dc.contributor.authorKatsuda, S.
dc.contributor.authorSato, T.
dc.contributor.authorJokipii, J. R.
dc.contributor.authorGiacalone, J.
dc.date.accessioned2018-08-29T21:15:20Z
dc.date.available2018-08-29T21:15:20Z
dc.date.issued2018-06-21
dc.identifier.citationFraschetti, F., Katsuda, S., Sato, T., Jokipii, J. R., & Giacalone, J. (2018). Vortical Amplification of the Magnetic Field at an Inward Shock of Supernova Remnant Cassiopeia A. Physical Review Letters, 120(25), 251101. https://doi.org/10.1103/PhysRevLett.120.251101en_US
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.doi10.1103/PhysRevLett.120.251101
dc.identifier.urihttp://hdl.handle.net/10150/628617
dc.description.abstractWe present an interpretation of the time variability of the x-ray flux recently reported from a multiepoch campaign of 15 years of observations of the supernova remnant Cassiopeia A by Chandra. We show for the first time quantitatively that the [4.2-6] keV nonthermal flux increase up to 50% traces the growth of the magnetic field due to a vortical amplification mechanism at a reflection inward shock colliding with inner overdensities. The fast synchrotron cooling as compared with shock-acceleration time scale qualitatively supports the flux decrease.en_US
dc.description.sponsorshipNASA [NNX15AJ71G]; Smithsonian Institution Scholarly Studies [40488100HH00181]; Japan Society for the Promotion of Science KAKENHI [16K17673, 17H02864]; Leading Initiative for Excellent Young Researchers, MEXT, Japan; Special Postdoctoral Researchers Program in RIKENen_US
dc.language.isoenen_US
dc.publisherAMER PHYSICAL SOCen_US
dc.relation.urlhttps://link.aps.org/doi/10.1103/PhysRevLett.120.251101en_US
dc.rights© 2018 American Physical Society.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleVortical Amplification of the Magnetic Field at an Inward Shock of Supernova Remnant Cassiopeia Aen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Planetary Scien_US
dc.contributor.departmentUniv Arizona, Dept Astronen_US
dc.identifier.journalPHYSICAL REVIEW LETTERSen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.journaltitlePhysical Review Letters
dc.source.volume120
dc.source.issue25
refterms.dateFOA2018-08-29T21:15:20Z


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