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Time: 3:00pm, Nov. 18th (Thursday)
Speaker: Chichuan Jin (NAOC)
Location: Lecture Hall, 3rd floor

Abstract:
AGN show the most powerful accretion and radiation processes in the Universe. Super-Eddington Narrow-line Seyfert 1 Galaxies (NLS1s) are phenomenal because of their small black hole masses and very high mass accretion rates. In this talk, I will first review the general properties of super-Eddington NLS1s, including the optical/UV spectra, X-ray spectral-timing properties and broadband SED. These observational results can help us to constrain the super-Eddington disc structure, which contains a standard outer disc, a puffed-up inner disc with strong disc wind and advection, an extended soft X-ray corona, and a compact hard X-ray corona. We can also obtain reliable measurements of the global radiation efficiency. In the second part, I will present recent results about an enigmatic, extreme super-Eddington NLS1 RX J0134.2-4258, which was monitored by us during the past two years from radio to hard X-rays.