Change your cover photoUpload Change your cover photoUpload Zheng Cao PhD student @ SRON•28 Jan 2019 Did testing GR in the strong field regime near the black holes. Analyzing X-ray AGNs and XRBs, learning multi-wavelength stuff. This user account status is Approved About About Posts Posts Comments Comments Groups Groups BiographyDid testing GR in the strong field regime near the black holes. Analyzing X-ray AGNs and XRBs, learning multi-wavelength stuff. Current PositionPhD student @ SRONDate Started Position (Month, Year)2020