@inproceedings{oai:jaxa.repo.nii.ac.jp:00005258,
 author = {小谷, 太郎 and 河合, 誠之 and 坪井, 昌人 and Trushkin, Sergei and Nizhelskij, Nikolaj and Kotani, Taro and Kawai, Nobuyuki and Tsuboi, Masato and Namiki, Masaki},
 book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop},
 month = {Feb},
 note = {Astrophysics with All-Sky X-Ray observations: 3rd International MAXI Workshop (RIKEN, 10-12 June 2008), In multi-wavelength collaboration we studied the variability of the microquasars GRS1915+105 and Cyg X-3 during 2005 to May 2008 with the RATAN-600 radio telescope of SAO RAS. We detected clear correlation of the flaring radio fluxes and X-rays 'spikes' at 2-12 keV emission redundant in RXTE ASM from GRS1915+105 during eight relatively bright (200-600 mJy) radio flares in October 2005. Spectra of these flares at maximum are optically thick at frequencies lower than 2.3 GHz and optically thin at the higher frequencies. During the radio flares the spectra of the X-ray spikes become softer than those of the quiescent phase. Thus these data indicate the transitions from the very high/hard state to high/soft state during which massive ejections probably occur. These ejections are detected as radio flares. Such X-ray/radio events correlation detected later in 2006-2008. In December 2005 after of the 4-year quiescent radio state (100-200 mJy) Cyg X-3 entered the softer X-ray state with low level of hard (15-50 keV) X-ray and high (ca. 0.5 crab) in the soft band (1-10 keV). In the following 500 days we have detected more 10 bright (> 1 Jy) flaring events correlated with rising phases of ASM-Swift-BAT intensity of Cyg X-3. A first 1 Jy-flare was detected on 3 February 2006 after 18 days of the quenched radio emission (< 20 mJy). The spectrum of the flare at the maximum is flat from 1 to 100 GHz, obtained the quasi-simultaneous observations with RT45m telescope and millimeter array (NMA) of Nobeyama Radio Observatory., 資料番号: AA0064306019, レポート番号: JAXA-SP-08-014E},
 pages = {87--93},
 publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)},
 title = {Active flaring states of GRS 1915+105 and Cyg X-3 in radio/X-ray monitoring},
 volume = {JAXA-SP-08-014E},
 year = {2009}
}