Modelling the IDV Emissions of the BL Lac Objects with a Langevin Type Stochastic Differential Equation

C. S. Leung; J. Y. Wei; T. Harko; Z. Kovacs

doi:10.1007/s12036-011-9026-3

Modelling the IDV Emissions of the BL Lac Objects with a Langevin Type Stochastic Differential Equation

C. S. Leung, J. Y. Wei, T. Harko, Z. Kovacs

Research output: Journal article publication › Journal article › Academic research › peer-review

13 Citations (Scopus)

Abstract

In this paper, we introduce a simplified model for explaining the observations of optical intra-day variability (IDV) of the BL Lac Objects. We assume that the source of the IDV are the stochastic oscillations of an accretion disk around a supermassive black hole. The stochastic fluctuations on the vertical direction of the accretion disk are described by using a Langevin type equation with a damping term and a random, white noise type force. Furthermore, preliminary numerical simulation results are presented, which are based on the numerical analysis of the Langevin stochastic differential equation.

Original language	English
Pages (from-to)	189-192
Number of pages	4
Journal	Journal of Astrophysics and Astronomy
Volume	32
Issue number	1
DOIs	https://doi.org/10.1007/s12036-011-9026-3
Publication status	Published - 30 Jul 2011
Externally published	Yes

Keywords

BL Lac objects
Langevin type stochastic differential equation

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1007/s12036-011-9026-3

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Modelling the IDV Emissions of the BL Lac Objects with a Langevin Type Stochastic Differential Equation

Abstract

Keywords

ASJC Scopus subject areas

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