摘要
With the support by the National Natural Science Foundation of China(Grant Nos.11273028 and 11333004),Dr.Liu Jifeng at the Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,reported dynamical measurements of a black hole in the ultraluminous X-ray source M 101 ULX-1,which was published in Nature(2013,503(7477):500-503).
With the support by the National Natural Science Foundation of China （Grant Nos. 11273028 and 11333004）, Dr. LiuJifeng at the Key Laboratory of Optical Astronomy, National AstronomicalObservatortes, Chinese Academy of Sciences, reported dynamical measurements of a black hole in the ultralumi- nous X-ray source M 101 ULX 1, which was published in Nature （2013, 503 （7477）： 500 - 503）.
