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95678 |
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|a dc
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|a Sell, P. H.
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|a MIT Kavli Institute for Astrophysics and Space Research
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|a Schulz, Norbert S.
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|a Nowak, Michael A.
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|a Heinz, Sebastian
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|a Calvelo-Santos, D. E.
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|a Tudose, V.
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|a Soleri, P.
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|a Fender, R. P.
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|a Jonker, P. G.
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|a Brandt, W. N.
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|a Wijnands, R.
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|a van der Klis, M.
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|a Casella, P.
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|a Schulz, Norbert S.
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|a Nowak, Michael A.
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|a PARSEC-SCALE BIPOLAR X-RAY SHOCKS PRODUCED BY POWERFUL JETS FROM THE NEUTRON STAR CIRCINUS X-1
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|b IOP Publishing,
|c 2015-02-26T19:30:40Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/95678
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|a We report the discovery of multi-scale X-ray jets from the accreting neutron star X-ray binary, Circinus X-1. The bipolar outflows show wide opening angles and are spatially coincident with the radio jets seen in new high-resolution radio images of the region. The morphology of the emission regions suggests that the jets from Circinus X-1 are running into a terminal shock with the interstellar medium, as is seen in powerful radio galaxies. This and other observations indicate that the jets have a wide opening angle, suggesting that the jets are either not very well collimated or precessing. We interpret the spectra from the shocks as cooled synchrotron emission and derive a cooling age of ~1600 yr. This allows us to constrain the jet power to be 3 × 10[superscript 35] erg s[superscript -1] ⋦ P jet ⋦ 2 × 10[superscript 37] erg s[superscript -1], making this one of a few microquasars with a direct measurement of its jet power and the only known microquasar that exhibits stationary large-scale X-ray emission.
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|a en_US
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|a Article
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|t Astrophysical Journal. Letters
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