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Radio / X-ray correlation in the low/hard state of GX 339--4 | | S. Corbel
; M.A. Nowak
; R.P. Fender
; A.K. Tzioumis
; S. Markoff
; | | Date: |
22 Dec 2002 | | Journal: | Astron.Astrophys. 400 (2003) 1007-1012 | | Subject: | astro-ph | | Affiliation: | Univ. Paris 7 and CEA Saclay), M.A. Nowak (MIT), R.P. Fender (U. Amsterdam), A.K. Tzioumis (ATNF), S. Markoff (MIT | | Abstract: | 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. | | Source: | arXiv, astro-ph/0301436 | | Services: | Forum | Review | PDF | Favorites | |
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