Radio/x-ray correlation in the low/hard state of GX 339-4
Jan, 2003
8 pages
Published in:
- Astron.Astrophys. 400 (2003) 1007-1012
e-Print:
- astro-ph/0301436 [astro-ph]
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Abstract: (arXiv)
We present the results of a long-term study of the black hole candidate GX 339-4 using simultaneous radio (from the Australia Telescope Compact Array) and X-ray (from the Rossi X-ray Timing Explorer and BeppoSAX) observations performed between 1997 and 2000. We find strong evidence for a correlation between these two emission regimes that extends over more than three decades in X-ray flux, down to the quiescence level of GX 339-4. This is the strongest evidence to date for such strong coupling between radio and X-ray emission. We discuss these results in light of a jet model that can explain the radio/X-ray correlation. This could indicate that a significant fraction of the X-ray flux that is observed in the low-hard state of black hole candidates may be due to optically thin synchrotron emission from the compact jet.- BLACK HOLE PHYSICS
- RADIATION MECHANISMS NON-THERMAL
- ISM JETS
- ISM OUTFLOWS
- RADIO CONTINUUM STARS
- X-RAY STARS
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