| Type |
Journal Article |
| Names |
P. H. Sell, S. Heinz, D. E. Calvelo, V. Tudose, P. Soleri, R. P. Fender, P. G. Jonker, N. S. Schulz, W. N. Brandt, M. A. Nowak, R. Wijnands, M. van der Klis, P. Casella |
| Publication |
The Astrophysical Journal Letters |
| Volume |
719 |
| Issue |
2 |
| Pages |
L194-L198 |
| Date |
August 1, 2010 |
| URL |
http://adsabs.harvard.edu/abs/2010ApJ...719L.194S |
| Library Catalog |
NASA ADS |
| Abstract |
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 ×
1035 erg s-1 <~ P jet <~ 2
× 1037 erg s-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. |
| Tags |
ISM: jets and outflows, X-Rays: Binaries, X-rays: individual: Circinus X-1 |