說說蠍虎座BL 型天體
Abstract:In this presentation, I will introduce a simplified model for explaining the optical intraday variability (IDV) of the BL Lac Objects observations. The model is based on the Langevin Equation for producing Stochastic Fluctuations on the vertical direction of the accretion disk. The dynamics of the disk is determined by the restoring (oscillating) gravitational force of the central massive black, superposed with the stochastic fluctuations that result from the interaction of the accretion disk with an external, hydrodynamic type, stochastic flow.Furthermore, the preliminary numerical simulation results will be presented, which are based on the numerical analysis of the Langevin stochastic differential equation.
Topic: Modeling the IDV emissions of the BL Lac Objects with Langevin type stochastic differential equations
Speaker: Leung Chun Sing
Date: 14th Sept. 2010 (Tuesday)
Time: 7:00 – 8:30 p.m.
Venue: HKAS office
Fee: $10
Language: Chinese 請問理論組的聚會係未改係 Tuesday 呢？ 請問理論組的聚會係未改係 Tuesday 呢？
Dennis 發表於 2010-9-6 08:50 http://forum.hkas.org.hk/images/common/back.gif
理論組的聚會已改為在星期二舉行。
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