论文标题
在中间露光度光瞬变（ILOTS）中有效地喷射辐射
Efficiently jet-powered radiation in intermediate-luminosity optical transients (ILOTS)
论文作者
论文摘要
我表明，宽射流击中较慢的凸出壳的流动结构可能非常有效地将喷气机的动能引导到辐射到辐射，因此，至少要计算一小部分中间亮度光瞬变（ILOTS），其中总辐射能量比流出流的重组能够提供的总辐射能量要大得多。这种类型的流程可能发生在高剂量驱动的ILOT（HAPI）模型的框架中，在二进制系统中，由于出色的合并或质量转移而导致高质量积聚率。我在喷气机上得出了喷气机上的条件，因为喷气机不穿透慢壳，以及光子扩散时间与膨胀时间的比率。如果将大量的热能引导到辐射，则该比率不会太大。我将射流辐射模型应用于Eta Carinae的巨大喷发，v838〜MON和V4332〜SGR，并为这些ILOTS找到一组合理的参数。我预计，与基于赤道质量浓度的ILOT模型相比，喷射动力辐射模型将动能转化为辐射。在许多情况下，我认为在同一系统中会出现喷气机和赤道质量浓度。
I show that a flow structure where wide jets hit a slower expanding shell might be very efficient in channelling the kinetic energy of the jets to radiation, therefore accounting for, at a least a fraction of, intermediate luminosity optical transients (ILOTs) where the total radiation energy is much larger than what recombination energy of the outflow can supply. This type of flow might occur in the frame of the high-accretion-powered ILOT (HAPI) model, where there is a high mass accretion rate as a result of stellar merger or mass transfer in a binary system. I derive the condition on the jets half-opening angle for the jets not to penetrate through the slow shell, as well as the ratio of the photon diffusion time to expansion time. This ratio cannot be too large if a large fraction of the thermal energy is channelled to radiation. I apply the jet-powered radiation model to the Great Eruption of Eta Carinae, to V838~Mon, and to V4332~Sgr, and find a plausible set of parameters for these ILOTs. I expect the jet-powered radiation model to be more efficient in converting kinetic energy to radiation than ILOT models that are based on equatorial mass concentration. In many cases, thought, I expect both jets and equatorial mass concentration to occur in the same system.
