A parsec scale X-ray extended structure from the X-ray binary Circinus X-1

Type Journal Article
Names P. Soleri, S. Heinz, R. Fender, R. Wijnands, V. Tudose, D. Altamirano, P. G. Jonker, M. van der Klis, L. Kuiper, C. Kaiser, P. Casella
Publication Monthly Notices of the Royal Astronomical Society Letters
Volume 397
Issue 1
Pages L1-L5
Date July 1, 2009
URL http://adsabs.harvard.edu/abs/2009MNRAS.397L...1S
Library Catalog NASA ADS
Abstract 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.
Tags ISM: jets and outflow, X-Rays: Binaries, stars: individual: Cir X-1
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