Possible mechanism of quasi-periodic oscillation of x-ray and TeV emissions for Mkn 501

• 来源期刊: 中国物理（英文版）
• 关键词: BL Lacertae objects black hole mass gamma-ray source
• 年，卷（期）: 2005,（8）
• 页码范围: 1683-1686
• 页数: 4页
• 语种: 英文

摘要

We propose that the emissions of an advection-dominated accretion flows (ADAF) disc are the seed photons upscattered to x-ray and TeV γ-rays in Mkn 501 and the instability of an ADAF disc may explain the 23-day quasi-periodic oscillation period observed in the x-rays and TeV lightcurves of Mkn 501. In this model, the ADAF emissions of optical and x-rays go into the jet and are up-scattered to high energies by relativistic electrons. In this process, the instability occurring in ADAF results in the quasi-periodic variation in the seed photons and therefore causes the variation in high energy x- and γ-rays.