Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21110022c&link_type=abstract
American Astronomical Society, AAS Meeting #211, #100.22; Bulletin of the American Astronomical Society, Vol. 39, p.915
Other
Scientific paper
A number of galactic very high-energy γ-ray sources that were recently discovered are related with pulsar wind nebulae, presenting the most populous galactic source class at TeV energies. Also, H.E.S.S. discovered a representative population of unidentified TeV γ-ray sources in the galactic plane survey. A pulsar, which is often located within an extended region of the TeV γ-ray emission, is an evident correlation for many of these sources. These particular H.E.S.S. sources are auspicious candidates for pulsar wind nebulae which are not yet determined. Here we have done a systematic search for X-ray counterparts using the Chandra data. They are within the extension bounds of the unidentified H.E.S.S. sources, and in particular those associated with young, energetic pulsars. A number of X-ray sources have been detected in corresponding Chandra fields. Two of these sources, CXOU 161729.3-505512 and CXOU 170252.4-412848, are of special interest due to their exact positional coincidence with the pulsars PSR 1617-5055 and PSR 1702-4128, respectively. These two pulsars PSR 1617-5055 and PSR 1702-4128 are plausible counterparts of HESS 1616-508 and HESS 1702-420, respectively. All of the detected sources corresponds with being point sources of X-ray emission. The analysis of the archival Chandara data for another young energetic pulsar PSR 1913+1011, related with the newly found TeV γ-ray source HESS 1912+101, not only does not disclose any statistical significance around the pulsar position, but there is no apparent X-ray emission that can be seen at the center of gravity. The corresponding flux up per limits are given in here, and we will discuss the implications of these results.
Chang Chulhoon
Cui Wei-Wei
Konopelko Alex
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