SIMBAD references

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

Nucleonic gamma-ray production in Vela X.

HORNS D., AHARONIAN F., SANTANGELO A., HOFFMANN A.I.D. and MASTERSON C.

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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