Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...451l..51h&link_type=abstract
Astronomy and Astrophysics, Volume 451, Issue 3, June I 2006, pp.L51-L54
Astronomy and Astrophysics
Astrophysics
53
Gamma Rays: Theory, X-Rays: General, Neutrinos, Pulsars: Individual: Psr B0833-45, Radiation Mechanisms: Non-Thermal
Scientific paper
Context. 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. Aims. The gamma-ray emission from the Vela TeV plerion associated with the pulsar PSR B0833-45 is investigated Methods. 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. Results. The spectra calculated in this model give a very good description of the gamma-ray data. The required energy in nuclei is W_p=1.3× 1049(n/0.6~cm-3)-1 erg for protons and W_Fe≈ 1048 erg for iron nuclei released in the pulsar wind. The secondary electrons produce optical to soft X-ray emission at the level of ≈1032 erg/s. We give a prediction for the ν_μ and νe neutrino emission including a simple parameterization of the ν_μ flux useful for calculating detection rates in next generation neutrino telescopes. Conclusions. 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.
Aharonian Felix
Hoffmann I. D. A.
Horns Dieter
Masterson C.
Santangelo Andrea
No associations
LandOfFree
Nucleonic gamma-ray production in Vela X does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nucleonic gamma-ray production in Vela X, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nucleonic gamma-ray production in Vela X will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1854578