论文标题
Blazar喷气机的气云消融
The ablation of gas clouds by blazar jets
论文作者
论文摘要
大爆炸活动的爆炸活性可以持续到截然不同的时间尺度，这可能是由于星际云侵入射流导致的射流流中密度增强的结果。我们调查了在各种云和喷气构型下，大黄色喷气机的气云消融所期望的光曲面。我们得出了描述静液压云的消融过程的半分析公式，并在云和射流参数空间上执行人工设置的参数扫描。然后，我们使用从各种云类型的测量中获得的参数来产生这些云示例的光曲线。参数扫描表明，可以实现巨大的对称光曲面动物园。云和发射区域参数都显着影响耀斑的持续时间和强度。云的比例高度是最重要的参数之一，因为它决定了灯弯的形状。反过来，可以从耀斑的观察形状中推导重要的云参数。示例云导致各种时间尺度的持续持续的明显耀斑。
Flaring activity in blazars can last for vastly different time-scales, and may be the result of density enhancements in the jet flow that result from the intrusion of an interstellar cloud into the jet. We investigate the lightcurves expected from the ablation of gas clouds by the blazar jet under various cloud and jet configurations. We derive the semi-analytical formulae describing the ablation process of a hydrostatic cloud, and perform parameter scans of artificial set-ups over both cloud and jet parameter spaces. We then use parameters obtained from measurements of various cloud types to produce lightcurves of these cloud examples. The parameter scans show that a vast zoo of symmetrical lightcurves can be realized. Both cloud and emission region parameters significantly influence the duration, and strength of the flare. The scale height of the cloud is one of the most important parameters, as it determines the shape of the lightcurve. In turn, important cloud parameters can be deduced from the observed shape of a flare. The example clouds result in significant flares lasting for various time scales.
