NASA正在清查13年来的资料以确认该天体
https://imgur.com/m0NA62j
https://tinyurl.com/4kc7ax2a
The newly forming planet, called AB Aurigae b, is probably about nine times
more massive than Jupiter and orbits its host star at a whopping distance of
8.6 billion miles – over two times farther than Pluto is from our Sun. At
that distance it would take a very long time, if ever, for a Jupiter-sized
planet to form by core accretion. This leads researchers to conclude that the
disk instability has enabled this planet to form at such a great distance.
And, it is in a striking contrast to expectations of planet formation by the
widely accepted core accretion model.
"We could not detect this motion on the order of a year or two years," Currie
said. "Hubble provided a time baseline, combined with Subaru data, of 13
years, which was sufficient to be able to detect orbital motion."
引起大家注意的是它的诞生似乎跟其它标准行星的形成模型不同，可能颠覆过去对行星
形成的理论认知。该天体展示了不一样的形成过程。参与研究的亚利桑那大学研究人员
表示按照过去的理论，是不可能在大的轨道距离上形成这种巨行星的。
这颗新形成的行星名为 AB Aurigae b，其质量可能是木星的 9 倍左右，并以比冥王星与
太阳的距离还要远两倍的轨道运行。在那个距离上，如果有的话，一颗木星大小的行星通
过吸积成型需要很长时间。
“我们在一两年内无法检测到这种现象”，“哈伯望远镜提供了一个时间基线，连同
昴星团望远镜(スバル)的数据，持续了13年，来反推该天体的运行细节。”