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Publications du CSNSM |  |
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Publications du CSNSM | |
| HAL: in2p3-00716276, version 1 |
| ADS Bibliographic id: 2012AN....333..361T |
| DOI: 10.1002/ASNA.201211674 |
| Detailed view |  Export this paper |
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| Astronomische Nachrichten 333 (2012) 361 |
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| Tracing low-energy cosmic-rays by charge exchange X-ray emission |
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| V. Tatischeff1 |
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| (2012) |
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| Hadronic cosmic rays of energies below about 100 MeV nucleon-1 are thought to be an important component of the Galactic ecosystem. However, since these particles cannot be detected near Earth due to the solar modulation effect, their composition and flux in the interstellar medium are very uncertain. Atomic interactions of low-energy cosmic rays with interstellar gas can produce a characteristic nonthermal X-ray emission comprising very broad lines from de-excitations in fast ions following charge exchange. We suggest that broad lines at ˜0.57 and ˜0.65 keV could be detected from a dark molecular cloud in the local interstellar medium. These lines would be produced by fast oxygen ions of kinetic energies around 1 MeV nucleon-1. |
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| 1: | CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse |
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| CSNSM AN |
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| Subject(s) | : | Physics/Astrophysics/Instrumentation and Methods for Astrophysic Sciences of the Universe/Astrophysics/Instrumentation and Methods for Astrophysic |
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| cosmic rays – radiation mechanism: non-thermal – X-rays: diffuse background – X-rays: ISM |
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| in2p3-00716276, version 1 | |
| http://hal.in2p3.fr/in2p3-00716276 | |
| oai:hal.in2p3.fr:in2p3-00716276 | |
| From: Christine Hadrossek | |
| Submitted on: Tuesday, 10 July 2012 11:45:39 | |
| Updated on: Tuesday, 10 July 2012 12:09:22 | |
