DIFFERENCES OF LEPTONIC AND HADRONIC RADIATION PRODUCTION IN FLARING BLAZARS

DIFFERENCES OF LEPTONIC AND HADRONIC RADIATION PRODUCTION IN FLARING BLAZARS
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耀斑中轻子和强子辐射产生的差异

DOI:
10.1088/0004-637x/749/2/155
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发表时间:
2012
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
Schlickeiser
Schlickeiser
中科院分区:
--
文献类型:
--
作者:
Eichmann;Schlickeiser

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为了区分耀变体非热辐射的轻子起源和强子起源,我们提出了一个半解析模型,该模型分别基于它们的轻子起源和强子起源来描述出射粒子(即光子和中微子)的时间发展。该方法从注入的相对论粒子的输运方程开始,并考虑空间扩散和连续的能量损失。一方面,考虑相对论电子拾取,这导致同步加速器,以及外部康普顿发射;另一方面,相对论质子拾取,这导致高能光子和中微子的非弹性质子-质子碰撞。计算了强子和轻子相互作用情形下耀变体的出射光子和中微子强度随时间的发展,给出了耀变体持续时间和不同波长光子与高能中微子之间的时间滞后的有用预测。
In order to distinguish the leptonic from the hadronic origin of the non-thermal emission of a flaring blazar, we present a semi-analytical model that describes the temporal development of the emergent particles (ie, photons and neutrinos) based on their leptonic and hadronic origins, respectively. The approach starts with the transport equation of the injected relativistic particles and takes spatial diffusion and continuous energy losses into account. On the one hand, a relativistic electron pick-up is considered, which leads to synchrotron, as well as external Compton emission; and on the other hand, a relativistic proton pick-up, which results in high-energy photons and neutrinos by inelastic proton–proton collisions. The temporal development of the emergent photon and neutrino intensities of blazar flares in hadronic and leptonic interaction scenarios are calculated, given useful predictions of flare durations and time lags between photons of different wavelength and high-energy neutrinos.
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