Models for high-frequency radio outbursts in extragalactic sources, with application to the early 1983 millimeter-to-infrared flare of 3C 273.
Models for high-frequency radio outbursts in extragalactic sources, with application to the early 1983 millimeter-to-infrared flare of 3C 273.
复制标题
DOI：
10.1086/163592
复制
发表时间：
1985-11
期刊：
影响因子：
--
通讯作者：
A. Marscher;W. Gear
中科院分区：
文献类型：
--
作者：
A. Marscher;W. Gear
以1983年初类星体3C273 mm-IR耀斑为参照的致密射电源可变性模型表明，如果耀斑分量在膨胀，则暴发谱的早期演化最容易解释。这些模型包含了同步加速器、康普顿和膨胀损耗的影响，以及相对论电子和磁场的可变注入。一个基于均匀扩展源的模型需要相对人为的粒子注入随源半径的变化，以解释3C273耀斑数据；第二个模型的结果更好，该模型的爆发是由于冲击波穿过绝热、锥形、相对论喷流。参考文献55篇。
The present models for compact radio source variability, with reference to the early 1983 mm-to-IR flare of the quasar 3C 273, indicate that the outburst spectrum's early evolution is most easily explained if the flaring component is expanding. The models encompass the effects of synchrotron, Compton, and expansion losses, as well as variable injection of relativistic electrons and magnetic field. A model based on a uniform expanding source requires comparatively artificial variations of particle injection with source radius, in order to explain the 3C 273 flare data; superior results are noted for a second model in which the outburst is due to a shock wave passing through an adiabatic, conical, relativistic jet. 55 references.