C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST06:34:40

2006A&A...451L..51H - Astronomy and Astrophysics, volume 451, L51-54 (2006/6-1)

Nucleonic gamma-ray production in Vela X.


Abstract (from CDS):

The recently discovered extended very high energy gamma-ray (E>0.1 TeV=1011 eV) emission from at least three pulsar wind nebula systems (MSH 15-52, G18.0-07, and Vela X) could be hinting at a possibly new class of objects which is called in the following ``TeV plerions''. In some of these systems, particle acceleration could be driven by ions in the relativistic pulsar wind. These ions are expected to produce gamma-ray emission via inelastic scattering with the ambient medium. The gamma-ray emission from the Vela TeV plerion associated with the pulsar PSR B0833-45 is investigated We calculate the gamma-ray emission in the framework of nucleonic gamma-ray production including the synchrotron and inverse Compton emission from primary and secondary electrons and compare the model with observational data. The spectra calculated in this model give a very good description of the gamma-ray data. The required energy in nuclei is Wp=1.3x1049(n/0.6/cm3)–1 erg for protons and WFe≃1048erg for iron nuclei released in the pulsar wind. The secondary electrons produce optical to soft X-ray emission at the level of ≃1032erg/s. We give a prediction for the νµ and νe neutrino emission including a simple parameterization of the νµ flux useful for calculating detection rates in next generation neutrino telescopes. The observed gamma-ray emission can be produced by a pulsar wind which carries a large fraction of the spin down luminosity in the form of relativistic nuclei. We predict the neutrino flux as a unique signature for this model. Based upon this prediction, the Vela TeV plerion would be one of the best known candidates for detection with next generation neutrino telescopes.

Abstract Copyright:

Journal keyword(s): gamma rays: theory - X-rays: general - neutrinos - pulsars: individual: PSR B0833-45 - radiation mechanisms: non-thermal

CDS comments: Abstract: G18.0-07 is NAME PWN G18.0-0.7 in Simbad.

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
1 NAME Vela X Psr 08 33 08.880 -45 11 24.36           ~ 242 1
2 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545           ~ 2057 1
3 HESS J1514-591 Rad 15 13 17.000 -59 04 54.00           ~ 376 3
4 PSR B1823-13 Psr 18 26 13.06 -13 34 48.1           ~ 352 1

    Equat.    Gal    SGal    Ecl

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