News Release

终于能够看清太阳针状物是如何形成的

Peer-Reviewed Publication

American Association for the Advancement of Science (AAAS)

Finally, Understanding How the Sun's Spicules Are Made

image: A graphic describing results from Mart&iacute;nez-Sykora <i>et al.</i> This material relates to a paper that appeared in the 23 June 2017, issue of <i>Science</i>, published by AAAS. The paper, by J. Mart&iacute;nez-Sykora at Bay Area Environmental Research Institute in Petaluma, CA, and colleagues was titled, "On the generation of solar spicules and Alfv&eacute;n waves." view more 

Credit: Carla Schaffer / AAAS

研究人员在建模中第一次准确地解释了太阳大气中大量的被称作太阳针状物的等离子体喷流是如何形成的。研究人员的这些结果不仅破解了这些现象如何形成的长期谜团,而且它们也应该对科学家们了解太阳表面之上的等离子体是如何被加热至如此高温的有所帮助。恰在太阳可见表面之上的大气层中含有被称作太阳针状物的猛烈等离子射流,对其的观察已经有一个世纪之久。这些针状物每天会出现数千次,但对它们的起源则不甚了解。它们被认为与提供日冕炽热的等离子体有关,对这些针状物的了解有可能帮助破解太阳外部大气为什么会达到数百万度高温的这一长期的谜团。为了更好地了解这些喷流是如何形成的,Juan Martinez-Sykora和同事在这里使用了最先进的数值模型来模拟无数的自发性针状物。关键的是,他们发现,这些模拟的属性与界面区成像光谱仪和瑞典太阳望远镜对实际针状物的属性观察相符。研究人员能够确定产生针状物的磁场和太阳等离子体间的物理相互作用,这对了解距我们最近的恒星会有帮助。

###


Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.