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来自太空的第二个未知重复无线电脉冲引起了科学家的猜测

Second mysterious, repeating radio burst from space keeps scientists guessing

For the second time, astronomers detected a consistent pattern in a fast radio burst from somewhere in deep space. The first such pattern was discovered in a different FRB back in February.

天文学家第二次探测了到来自深空某处的快速射电爆发的一致模式。第一次探测结果是在2月份在一个不同的FRB中得到的。

Now scientists say they have details on the habits of FRB 121102, which repeats every 157 days, according to a study published in the journal Monthly Notices of the Royal Astronomical Society.

根据英国皇家天文学会月刊上发表的一项研究,科学家称他们掌握了frb121102(下称FRB为“爆发”)的活动规律的细节,这种活动每157天重复一次。

This FRB was discovered in 2012, and researchers noted its repeating nature in 2016. The source is a dwarf galaxy more than 3 billion light years away. The pattern might be the result of a massive star, a neutron star or black hole’s orbital motion.

这种爆发在2012年被发现,研究人员在2016年注意到它的重复性。它的源头是一个30亿光年外的矮星系。这种模式可能是大质量恒星、中子星或黑洞轨道运动的结果。

“This is an exciting result as it is only the second system where we believe we see this modulation in burst activity,” the University of Manchester’s Kaustubh Rajwade, who led the research, said in a release. “Detecting a periodicity provides an important constraint on the origin of the bursts and the activity cycles could argue against a precessing neutron star.”

“这是一个令人兴奋的结果,因为这只是我们认为我们在爆发活动中看到这种调制的第二个系统,”曼彻斯特大学的考斯图布·拉杰瓦德在一份报告中说。“检测到周期性对爆发的起源提供了一个重要的限制条件,活动周期可能会反对进动中子星(的说法)。”

Read more at CNET

翻译:运营人员

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