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arXiv:0706.3881 (astro-ph)
[Submitted on 26 Jun 2007 (v1), last revised 29 Jun 2007 (this version, v2)]

Title:Evidence for a parsec scale X-ray jet from the accreting neutron star Circinus X-1

Authors:S. Heinz, N. S. Schulz, W. N. Brandt, D. K. Galloway
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Abstract: We analyzed the zero-order image of a 50 ks Chandra gratings observation of Circinus X-1, taken in 2005 during the source's low-flux state. Circinus X-1 is an accreting neutron star that exhibits ultra-relativistic arcsecond-scale radio jets and diffuse arcminute-scale radio jets and lobes. The image shows a clear excess along the general direction of the north-western counter-jet, coincident with the radio emission, suggesting that it originates either in the jet itself or in the shock the jet is driving into its environment. This makes Circinus X-1 the first neutron star for which an extended X-ray jet has been detected. The kinetic jet power we infer is significantly larger than the minimum power required for the jet to inflate the large scale radio nebula.
Comments: Added journal reference, corrected on reference and typo in labels for Fig. 1; 5 pages, 3 figures, ApJ Letter, in press
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:0706.3881 [astro-ph]
  (or arXiv:0706.3881v2 [astro-ph] for this version)
  https://doi.org/10.48550/arXiv.0706.3881
Related DOI: https://doi.org/10.1086/519950

Submission history

From: Sebastian Heinz [view email]
[v1] Tue, 26 Jun 2007 17:48:45 UTC (349 KB)
[v2] Fri, 29 Jun 2007 19:28:22 UTC (373 KB)
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