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arXiv 1904.04029astro-ph.GA
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这些巨人的弧线是由超级气泡模拟的

The giants arcs as modeled by the superbubbles

Lorenzo Zaninetti

摘要:

星系团中的巨大弧是在超级气泡的框架下模拟的。假设团内介质的密度遵循双曲线行为。运动的解析定律是经过时间和极角的函数。因此,膨胀薄层中的动能通量随着极角的增加而减少,使得天文观测无法看到巨大的弧。为了校准角秒-秒差距转换,分析了三种宇宙学。

英文摘要:

The giant arcs in the clusters of galaxies are modeled in the framework of the superbubbles. The density of the intracluster medium is assumed to follow a hyperbolic behavior. The analytical law of motion is function of the elapsed time and the polar angle. As a consequence the flux of kinetic energy in the expanding thin layer decreases with increasing polar angle making the giant arc invisible to the astronomical observations. In order to calibrate the arcsec-parsec conversion three cosmologies are analyzed.

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