Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.2107g&link_type=abstract
American Astronomical Society, HEAD meeting #10, #21.07
Astronomy and Astrophysics
Astronomy
Scientific paper
We report on the latest progress in identifying the extended TeV source HESS J1837-069 with a pulsar/pulsar wind nebula system. A Chandra X-ray observation of the field resolves AX J1838.0-0655, an ASCA source that lies within the TeV extent, into a bright point source surrounded by a 2 arcmin diameter, centrally peaked, non-thermal nebula. The morphology and spectra of this source provide strong evidence of a young rotation-powered pulsar generating a pulsar wind nebula. For a distance of 6.6 kpc, suggested by its proximity to the massive star cluster RSGC1, the total X-ray luminosity of this system predicts a pulsar spin-down power around 1E37 ergs/s, similar to the most energetic pulsars known. The star cluster may have given birth to the pulsar, while fueling TeV emission from the PWN with target photons for inverse Compton scattering. A second diffuse X-ray source adjacent to the TeV emission is likely a PWN, potentially contributing to the apparent extent of the HESS source.
Gotthelf Eric Van
Halpern Jules P.
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