布拉格衍射与冷中子星的铁壳
Bragg diffraction and the Iron crust of cold Neutron Stars
摘要:
如果冷却下来的中子星有一层薄薄的原子晶体铁壳,它们就必须吸收适当波长的X射线。如果衍射光束要在地球上可见,照明源必须非常强烈,并且靠近反射恒星。一个例子是一个双星系统,它由两颗在近轨道上的中子星组成,其中一颗是惰性的,另一颗是X射线脉冲星(也许是一颗“异常”的X射线脉冲星或磁星,不是由伴星或周围空间的气体吸收提供动力,这将是最干净的例子)。要搜索的可观测值是(准)周期性地添加到主X射线脉冲的次峰。该次峰的显著特征在于,它出现在由简单整数λ、λ/2、λ/3.相关的波长处。λ/n,因为布拉格的衍射定律。
英文摘要:
If cooled-down neutron stars have a thin atomic crystalline-iron crust, they must diffract X-rays of appropriate wavelength. If the diffracted beam is to be visible from Earth, the illuminating source must be very intense and near the reflecting star. An example is a binary system composed of two neutron stars in close orbit, one of them inert, the other an X-ray pulsar (perhaps an "anomalous" X-ray pulsar or magnetar, not powered by gas absorption from the companion or surrounding space, would be the cleanest example). The observable to be searched for is a secondary peak added (quasi-) periodically to the main X-ray pulse. The distinguishing feature of this secondary peak is that it appears at wavelengths related by simple integer numbers, lambda, lambda/2, lambda/3... lambda/n because of Bragg's diffraction law.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。