M. van der Klis
- A parsec scale X-ray extended structure from the X-ray binary Circinus X−1
- Monthly Notices of the Royal Astronomical Society. Letters
- Volume | Issue number
- 397 | 1
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Anton Pannekoek Institute for Astronomy (API)
We present the results of the analysis of two Chandra observations of Circinus X−1 performed in 2007, for a total exposure time of ∼50 ks. The source was observed with the High Resolution Camera during a long X-ray low-flux state of the source. Cir X−1 is an accreting neutron star binary system that exhibits ultra-relativistic arcsec-scale radio jets and an extended arcmin-scale radio nebula. Furthermore, a recent paper has shown an X-ray excess on arcmin-scale prominent on the side of the receding radio jet. In our images, we clearly detect X-ray structures on both the side of the receding and the approaching radio jet. The X-ray emission is consistent with a synchrotron origin. Our detection is consistent with neutron star binaries being as efficient as black hole binaries in producing X-ray outflows, despite their shallower gravitational potential.
- go to publisher's site
- DOI: 10.1111/j.1745-3933.2008.00574.x; eprintid: arXiv:0810.2202
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