我国科学家领导的国际合作团队近期利用“中国天眼”,对著名微类星体GRS1915+105开展了高时间精度的长期观测,发现该星体的黑洞存在微弱的射电“脉搏”,周期约为0.2秒。这是国际上首次在射电波段观测到黑洞“脉搏”,有望打开黑洞射电观测和理论研究的新思路。该发现说明( )①人类的认识是无限发展的,追求真理是一个永无...
我国科学家领导的国际合作团队利用“中国天眼” ,对著名微类星体GRS1915+105开展了高时间精度的长期观测,发现该星体的黑洞存在微弱的射电“脉搏” ,周期约为0.2秒。 这是国际上首次在射电波段观测到黑洞“脉搏” .有望打开黑洞射电观测和理论研究的新思路。 该发现说明()①人类的认识是无限发展的.追求真理是个永无...
**VOLUME**, **PUBLICATION YEAR***EDITORS**The binary components of GRS 1915+105Jochen GreinerAstrophysical Institute Potsdam, 14482 Potsdam, GermanyAbstract. I summarize recent near-infrared spectroscopy of the micro-quasar GRS 1915+105 with the ESO/VLT which allowed to (i) identifythe donor and...
【GRS 1915+105二进制系统示意图】【信息来源日期:2001年11月28日】这张图片显示了一位艺术家对双星系统GRS 1915+105的印象,其中存在一个重黑洞。供体恒星和吸积黑洞之间的距离大约是地球和太阳之间距离的一半。这张图说明了供体恒星如何通过吸积盘供给黑洞,以及垂直于吸积盘的喷流的出现。在下面板中,蓝色表示吸...
Geometric constraints and the lack of eclipses in GRS 1915+105 are used to place limits on the mass of the companion star. We rule out any companion with M s > 19.4M ⊙ for a black hole mass of
We propose a scenario for a periodic filling and emptying of the accretion disc of GRS 1915+105, by computing the mass transfer rate from the donor and comparing it with the observed accretion rate. The binary parameters found by Greiner et al. (2001) pr
short time in GRS 1915+105. The χ 1 and χ 3 classes have similar properties charac- terized by high X-ray flux (∼500 mCrab) and high radio flux (∼ 50 mJy at 2.2 GHz), which can be associated with the radio-loud “plateau” state of the source (Fender et al. ...
Astrophysics and Space Science M. Klein-Wolt, R.P. Fender, G.G. Pooley, T. Belloni, S. Migliari, E.H. Morgan& M. van der Klis 23Accesses Explore all metrics Abstract We present an analysis of simultaneous X-ray and radio observations of the black hole candidate GRS 1915+105. ...
GRS1915+105. Certain similarities in the temporal classes of these two objects are explored in literature.However, this has not been the case with their non-linear dynamics: GRS 1915+105 shows signs ofdeterminism and stochasticity both, while IGR J17091-3624 was found to be predominantly ...
GRS 1915+105. All the observations that we analyzed can be fitted in the same manner, except that of 1996 June 16th [3]. All the quasi-periodic bursts observed in many of the observations [7] are consistent with repetitive short events like the ones described here. FIGURE 2. Correlation...