NASA正在清查13年來的資料以確認該天體
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誕生似乎跟其它標準行星的形成模型不同，可能顛覆過去對行星
形成的理論認知。該天體展示了不一樣的形成過程。參與研究的亞利桑那大學研究人員
表示按照過去的理論，是不可能在大的軌道距離上形成這種巨行星的。
這顆新形成的行星名為 AB Aurigae b，其質量可能是木星的 9 倍左右，並以比冥王星與
太陽的距離還要遠兩倍的軌道運行。在那個距離上，如果有的話，一顆木星大小的行星通
過吸積成型需要很長時間。
「我們在一兩年內無法檢測到這種現象」，「哈伯望遠鏡提供了一個時間基線，連同
昴星團望遠鏡(スバル)的數據，持續了13年，來反推該天體的運行細節。」