The X-ray-radio association in RATAN and RXTE monitoring of microquasar GRS 1915+105

Details The X-ray-radio association in RATAN and RXTE monitoring of microquasar GRS 1915+105 The X-ray-radio association in RATAN and RXTE monitoring of microquasar GRS 1915+105

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007iaus..238..461t&link_type=abstract

Black Holes from Stars to Galaxies -- Across the Range of Masses. Edited by V. Karas and G. Matt. Proceedings of IAU Symposium #

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Scientific paper

We report about association of the flaring events during active state of the microquasar with 14 Msun black hole GRS 1915+105. With RATAN-600 radio telescope we measured the light curves at 1, 2.3, 4.8, 7.7 and 11.2 GHz in the monitoring program from 15 September to 15 November 2005. We have detected six bright flaring events in October. Comparing with the Rossi XTE ASM data we found that all six radio events have the X-ray counterparts. The optically thin radio flares in maxima raised to 400-700 mJy at 2.3 GHz. The X-ray events are relatively bright up to 2 Crabs at 2-12 keV. Near 80 days after the last from six flares we detected two 300-mJy flares again just after the flaring event in 2-12 keV band.
Thus often (but not always) the radio and X-ray flares associated with each other. We discuss the origin of such a association as a evidence of disk-jet coupling during that the massive ejections happen.
This research is supported by the joint Russian Foundation of Basic Research and Japan Society for the Promotion of Science (JSPS) grant N 05-02-19710JF.

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