科研之友
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摘要
We report on a new Chandra exposure of PSR J1809-2332, the recently discovered pulsar powering the bright EGRET source 3EG J1809-2328. By registration of field X-ray sources in an archival exposure, we measure a significant proper motion for the pulsar point source over an approximate to 11 yr baseline. The shift of 0.30 +/- 0 ''.06 (at P.A. = 153.3 +/- 18.4) supports an association with proposed supernova remnant (SNR) parent G7.5-1.7. Spectral analysis of diffuse emission in the region also supports the interpretation as a hard wind nebula trail pointing back toward the SNR.
- 出版日期2012-8-20
