2019ApJ...876L...8B


Query : 2019ApJ...876L...8B

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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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 PSR J0437-47 Psr 04 37 15.99744 -47 15 09.7170           DC 793 0
2 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4908 1
3 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5767 4
4 NAME Geminga Psr 06 33 54.153 +17 46 12.91           ~ 1114 0
5 PSR B0656+14 Psr 06 59 48.1960 +14 14 19.400   24.85 24.90     ~ 785 1
6 NAME Vela X Psr 08 33 08.880 -45 11 24.36           ~ 253 1
7 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2120 1
8 PSR B1055-52 Psr 10 57 59.0450 -52 26 56.330           ~ 690 0

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2021.08.06-06:14:04

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