标题： 尘埃新星中的非热射电辐射引起的渡越辐射 显示英文标题

标题： Transition radiation in dusty novae with non-thermal radio emission

摘要： 当相对论性带电粒子进入或离开固体介质时会产生渡越辐射。 产生同步辐射的电子可能与恒星周围的尘埃相互作用，导致渡越辐射的发射。 我们研究了同时显示同步辐射发射的尘埃新星中渡越辐射的产生。 渡越辐射在硬紫外/X射线范围内发射。 我们认为，即使渡越辐射本身无法直接观测，它可能在决定新星抛射物的电离平衡和颗粒加热中起作用。 此外，在具有非热射电辐射的其他尘埃环境中（如超新星遗迹），它可能也很重要。 显示英文摘要

摘要： Transition radiation is produced when a relativistic charged particle enters or leaves a solid medium. The electrons that produce synchrotron radiation may interact with the dust in circumstellar environments, leading to the emission of transition radiation. We explore the production of transition radiation in dusty novae that also display synchrotron radiation emission. Transition radiation is emitted in the hard ultra-violet/X-ray range. We suggest that, even when the transition radiation is not itself directly observable, it may have a role in determining the ionisation balance of, and grain heating in, nova ejecta. Furthermore, it may be important in other dusty environments (such as supernova remnants) with non-thermal radio emission.