SIMBAD references

2019ApJ...876L...8B - Astrophys. J., 876, L8-L8 (2019/May-1)

GeV-TeV cosmic-ray leptons in the solar system from the bow shock wind nebula of the nearest millisecond pulsar J0437-4715.

BYKOV A.M., PETROV A.E., KRASSILCHTCHIKOV A.M., LEVENFISH K.P., OSIPOV S.M. and PAVLOV G.G.

Abstract (from CDS):

We consider the acceleration of leptons up to GeV-TeV energies in the bow shock wind nebula of PSR J0437-4715 and their subsequent diffusion through the interstellar magnetic fields. The leptons accelerated at the pulsar wind termination surface are injected into re-acceleration in colliding shock flows. Modeled spectra of synchrotron emission from the accelerated electrons and positrons are consistent with the far-ultraviolet and X-ray observations of the nebula carried out with the Hubble Space Telescope and Chandra X-ray Observatory. These observations are employed to constrain the absolute fluxes of relativistic leptons, which are escaping from the nebula and eventually reaching the solar system after energy-dependent diffusion through the local interstellar medium accompanied by synchrotron and Compton losses. It is shown that accelerated leptons from the nebula of PSR J0437-4715 can be responsible both for the enhancement of the positron fraction above a few GeV detected by PAMELA and AMS-02 spectrometers and for the TeV range lepton fluxes observed with H.E.S.S., VERITAS, Fermi, CALET, and DAMPE.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): acceleration of particles - cosmic rays - pulsars: individual: PSR J0437-4715 - shock waves

Simbad objects: 8

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2021.06.19-09:44:48

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