Issue |
EPJ Web Conf.
Volume 260, 2022
The 16th International Symposium on Nuclei in the Cosmos (NIC-XVI)
|
|
---|---|---|
Article Number | 11033 | |
Number of page(s) | 3 | |
Section | Poster | |
DOI | https://doi.org/10.1051/epjconf/202226011033 | |
Published online | 24 February 2022 |
https://doi.org/10.1051/epjconf/202226011033
Red Dwarfs as Sources of Cosmic Rays
P.N. Lebedev Physical Institute, Moscow, Russia
* e-mail: sinicinavy@lebedev.ru
** e-mail: sinits@sci.lebedev.ru
Published online: 24 February 2022
The Pamela, Fermi, AMS-02 spectrometer experimental data cannot be explained using the diffusive models of propagation of cosmic-rays accelerated at the supernova shocks and require the existence of nearby sources of cosmic rays at the distances less than one kpc. These sources could explain the growth of the ratio of galactic positrons to electrons with an energy increase, the complex dependence of the exponent of the proton and alpha spectra on the energy, the cosmic ray anomaly component origin. We consider active dwarf stars as possible sources of galactic cosmic rays in the energy range up to ~ 1014 eV. The generation of high-energy cosmic rays should be accompanied by high-energy gamma-ray emission, which may be detected. The TeV gamma-ray emission mostly of flaring type from active red dwarf stars V388 Cas, V547 Cas, V780 Tau, V962 Tau, V1589 Cyg, GJ 3684, GJ 1078 and GL 851.1 was detected recently with SHALON long-term observations. This result confirms that active dwarf stars are also the sources of high-energy galactic cosmic rays.
© The Authors, published by EDP Sciences, 2022
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