Evidence for particle acceleration to the knee of the cosmic ray spectrum in Tycho's supernova remnant
Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the "knee" of the CR spectrum at 1015 eV, accelerating particles to relativistic energies in their blast waves by the process of diffusive shock acceleration (DSA). Since CR nuclei do not radiate e...
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| Autores principales: | , , , , , , , , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
The American Astronomical Society
2011
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 08410caa a22010577a 4500 | ||
|---|---|---|---|
| 001 | PAPER-27442 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230711124141.0 | ||
| 008 | 190410s2011 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-79960240276 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Eriksen, K.A. |4 aut |e autor | |
| 245 | 1 | 0 | |a Evidence for particle acceleration to the knee of the cosmic ray spectrum in Tycho's supernova remnant |
| 260 | |b The American Astronomical Society |c 2011 | ||
| 270 | 1 | 0 | |m Eriksen, K. A.; Department of Physics and Astronomy, Rutgers, State University of New Jersey, Piscataway, NJ 08854, United States |
| 506 | |2 openaire |e Política editorial |f info:eu-repo/semantics/openAccess | ||
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| 520 | 3 | |a Supernova remnants (SNRs) have long been assumed to be the source of cosmic rays (CRs) up to the "knee" of the CR spectrum at 1015 eV, accelerating particles to relativistic energies in their blast waves by the process of diffusive shock acceleration (DSA). Since CR nuclei do not radiate efficiently, their presence must be inferred indirectly. Previous theoretical calculations and X-ray observations show that CR acceleration significantly modifies the structure of the SNR and greatly amplifies the interstellar magnetic field. We present new, deep X-ray observations of the remnant of Tycho's supernova (SN 1572, henceforth Tycho), which reveal a previously unknown, strikingly ordered pattern of non-thermal high-emissivity stripes in the projected interior of the remnant, with spacing that corresponds to the gyroradii of 1014-1015 eV protons. Spectroscopy of the stripes shows the plasma to be highly turbulent on the (smaller) scale of the Larmor radii of TeV energy electrons. Models of the shock amplification of magnetic fields produce structure on the scale of the gyroradius of the highest energy CRs present, but they do not predict the highly ordered pattern we observe. We interpret the stripes as evidence for acceleration of particles to near the knee of the CR spectrum in regions of enhanced magnetic turbulence, while the observed highly ordered pattern of these features provides a new challenge to models of DSA. © 2011. The American Astronomical Society. |l eng | |
| 536 | |a Detalles de la financiación: Umweltbundesamt, UBA | ||
| 536 | |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica, ANPCyT | ||
| 536 | |a Detalles de la financiación: Council of Independent Colleges, CIC | ||
| 536 | |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET | ||
| 536 | |a Detalles de la financiación: This work was partially supported by Chandra award (grant number GO9-0078X) to Rutgers University. E.M.R. is a member of the CIC (CONICET) and is funded by the CONICET, UBA, and ANPCyT projects. J.P.H. acknowledges helpful discussions with Mario Riquelme, Anatoly Spitkovsky, Tom Jones, Roger Blandford, and Martin Laming. We also thank Christopher McKee for contributing to the original Chandra proposal. Facilities: CXO | ||
| 593 | |a Department of Physics and Astronomy, Rutgers, State University of New Jersey, Piscataway, NJ 08854, United States | ||
| 593 | |a School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel | ||
| 593 | |a Benoziyo Center for Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel | ||
| 593 | |a Department of Physics and Astronomy, Dartmouth College, Hanover, NH 03755, United States | ||
| 593 | |a Space Telescope Science Institute, Baltimore, MD 21218, United States | ||
| 593 | |a Department of Physics, Furman University, Greenville, SC 29613, United States | ||
| 593 | |a Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, United States | ||
| 593 | |a Space Science Division, Naval Research Laboratory, Washington, DC 20375, United States | ||
| 593 | |a Instituto de Astronomiá y Fiśica del Espacio, Buenos Aires, Argentina | ||
| 593 | |a Faculty of Exact and Natural Sciences, University of Buenos Aires, Argentina | ||
| 690 | 1 | 0 | |a ACCELERATION OF PARTICLES |
| 690 | 1 | 0 | |a COSMIC RAYS |
| 690 | 1 | 0 | |a ISM: INDIVIDUAL OBJECTS (SN 1572, TYCHO) |
| 690 | 1 | 0 | |a ISM: SUPERNOVA REMNANTS |
| 700 | 1 | |a Hughes, J.P. |4 aut |e autor | |
| 700 | 1 | |a Badenes, C. |4 aut |e autor | |
| 700 | 1 | |a Fesen, R. |4 aut |e autor | |
| 700 | 1 | |a Ghavamian, P. |4 aut |e autor | |
| 700 | 1 | |a Moffett, D. |4 aut |e autor | |
| 700 | 1 | |a Plucinksy, P.P. |4 aut |e autor | |
| 700 | 1 | |a Rakowski, C.E. |4 aut |e autor | |
| 700 | 1 | |a Reynoso, E.M. |4 aut |e autor | |
| 700 | 1 | |a Slane, P. |4 aut |e autor | |
| 773 | 0 | |d Institute of Physics Publishing, 2011 |g v. 728 |k n. 2 PART II |p Astrophys. J. Lett. |x 20418205 |t Astrophysical Journal Letters | |
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