出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The association between radio and X-ray activities in flaring events of microquasar
GRS 1915+105 is studied. With the RATAN600 radio telescope, the light curves at 1.0, 2.3,
4.8, 7.7, and 11.2 GHz have been measured in the monitoring program from 15 September to 15
November 2005, and seven bright flaring events were detected in October. Using the ASM/RXTE
data, it is clearly shown that all the radio flare events have X-ray counterparts. The X-ray events
are relatively bright up to 2 Crabs at 2– 12 keV. The X-ray light curves show a significant softening
of the hardness ratio during the radio flares by a fraction of 30%. It is found the X-ray
spikes accompanying a strong radio flares are different from those without jets, and only such
special X-ray spikes may correlate with “massive jet ejections”.
