A large accretion disc of extreme eccentricity in the TDE ASASSN-14li

• DOI: 10.1093/mnras/sty1997
• Publication Date: 2018-07-26T07:16:28Z
• Authors: R Cao; F K Liu; Z Q Zhou; S Komossa; L C Ho
• Keywords: Eccentricity (behavior); Accretion disc

In the canonical model for tidal disruption events (TDEs), stellar debris circularizes quickly to form an accretion disc of size about twice orbital pericentre star. Most TDEs and candidates discovered in optical/ultraviolet have broad optical emission lines with complex diverse profiles puzzling origin. Liu et al. recently developed a relativistic elliptical constant eccentricity radius well reproduced double-peaked line TDE candidate PTF09djl large extremely eccentric disc. this paper, we show that ASASSN-14li radically different are modelled model, too. The has 0.97 semimajor axis 847 times Schwarzschild (rS) black hole (BH). It forms as consequence star passing by massive BH 25rS. powered extended X-ray source flat radial distribution overlapping bulk single-peaked asymmetric mainly due motion emitting matter within plane inclination 26° orientation closely toward observer. Our results suggest modelling is powerful probing structures discs coronal sources TDEs.