EDP Sciences
Free access
Volume 486, Number 2, August I 2008
Page(s) 485 - 491
Section Interstellar and circumstellar matter
DOI http://dx.doi.org/10.1051/0004-6361:20078227
Published online 22 May 2008

A&A 486, 485-491 (2008)
DOI: 10.1051/0004-6361:20078227

Resolving the bow-shock nebula around the old pulsar PSR B1929+10 with multi-epoch Chandra observations

C. Y. Hui and W. Becker

Max-Planck Institut für Extraterrestrische Physik, Giessenbachstrasse 1, 85741 Garching bei München, Germany
    e-mail: dhui@mpe.mpg.de

Received 5 July 2007 / Accepted 28 April 2008

We have studied the nearby old pulsar PSR B1929+10 and its surrounding interstellar medium utilizing the sub-arcsecond angular resolution of the Chandra X-ray Observatory. The Chandra data are found to be fully consistent with the results obtained from deep XMM-Newton observations as far as the pulsar is concerned. We confirm the non-thermal emission nature of the pulsar's X-radiation. In addition to the X-ray trail already seen in previous observations by the ROSAT and XMM-Newton X-ray observatories, we discovered an arc-like nebula surrounding the pulsar. We interpret the feature as a bow-shock nebula and discuss its energetics in the context of standard shock theory.

Key words: stars: pulsars: individual: PSR B1929+10 -- stars: neutron

© ESO 2008