The 'big bump' is one of the most striking features of the spectral energy distribution of quasars. It extends from optical light to EUV and soft X-ray. It has been suggested that this is due to the thermal ra...The 'big bump' is one of the most striking features of the spectral energy distribution of quasars. It extends from optical light to EUV and soft X-ray. It has been suggested that this is due to the thermal radiation from an accretion disk within tens of Schwarzschild radii from a black hole However, McDowell et al. revealed a few quasars with a展开更多
基金Project supported partially by the National Natural Science Foundation of China, Ph. D Point Research Fund of China, State Education Committee,University of California Faculty Exchange Award,and NASA Theory Grant.
文摘The 'big bump' is one of the most striking features of the spectral energy distribution of quasars. It extends from optical light to EUV and soft X-ray. It has been suggested that this is due to the thermal radiation from an accretion disk within tens of Schwarzschild radii from a black hole However, McDowell et al. revealed a few quasars with a
