伽马射线暴-超新星连接的余晖
The afterglow of gamma-ray burst - supernova connections
AI总结：
研究与Ib/c型超新星相关的长伽马射线暴X射线余晖中热和非热成分，结合同步辐射与扩散模型求解耦合系统，应用于GRB 060218A/SN 2006aj和GRB 171205A/SN 2017iuk等，再现光变曲线特征，揭示喷流与抛射物联系。
AI中文摘要：
几个与Ib/c型超新星相关的长伽马射线暴的X射线余晖呈现出标准的非热余晖，通常归因于相对论性喷流的同步辐射，以及一个不断演化的热成分，其物理起源仍存在争议。我们研究这些热成分和非热成分是否能在一个共同的分析框架内描述，以及它们的时间演化是否能为相对论性喷流与超新星抛射物之间的物理联系提供见解。我们将与相对论性喷流相关的非热能同步辐射的唯象描述与描述喷流影响的超新星抛射物部分热演化的扩散模型相结合。对由此产生的耦合系统进行了解析求解，得到了非热和热光度的封闭形式表达式。我们将该模型应用于GRB 060218A/SN 2006aj和GRB 171205A/SN 2017iuk等系统。所提出的形式主义再现了热和非热光变曲线的主要特征。在这两个系统中，直到平台期，热光度的时间演化都与非热成分相似。发现喷流影响的抛射物中储存的推断热能是与观测到的非热辐射耦合的能量的一部分。拟合得到的特征时间尺度表明喷流的演化与膨胀抛射物的热响应之间存在直接联系。尽管该框架是简化的，但它为长伽马射线暴余晖及其热对应物提供了统一的分析描述，并为研究相对论性喷流与Ib/c型超新星之间的物理联系提供了有用工具。
英文摘要：
The X-ray afterglow of several long gamma-ray bursts (LGRBs) associated with broad line type Ib/c supernovae (SNe) exhibits a standard non-thermal afterglow, commonly attributed to synchrotron emission from a relativistic jet, and an evolving thermal component whose physical origin is still debated. We investigate whether these thermal and non-thermal components can be described within a common analytical framework and whether their temporal evolution can provide insight into the physical connection between relativistic jets and SN ejecta. We combine a phenomenological description of the synchrotron emission of the non-thermal energy associated with the relativistic jet with a diffusion model describing the thermal evolution of the jet-affected portion of the SN ejecta. The resulting coupled system is solved analytically, leading to closed-form expressions for both non-thermal and thermal luminosities. We apply the model to the following systems: GRB 060218A/SN 2006aj and GRB 171205A/SN 2017iuk. The proposed formalism reproduces the main features of both thermal and non-thermal light curves. In both systems, the thermal luminosity follows a temporal evolution similar to that of the non-thermal component up to the plateau phase. The inferred thermal energy stored in the jet-affected ejecta is found to be a fraction of the energy coupled to the observed non-thermal emission. The characteristic timescales obtained from the fits suggest a direct link between the evolution of the jet and the thermal response of the expanding ejecta. Although simplified, the proposed framework provides a unified analytical description of LGRB afterglows and their thermal counterparts and offers a useful tool for investigating the physical connection between relativistic jets and SNe Ib/c.
