在年轻恒星β Pictoris 的星盘中成像的巨行星。

A giant planet imaged in the disk of the young star beta Pictoris.

机构信息

Laboratoire d'Astrophysique, Observatoire de Grenoble, Université Joseph Fourier, CNRS, BP 53, F-38041 Grenoble, France.

出版信息

Science. 2010 Jul 2;329(5987):57-9. doi: 10.1126/science.1187187. Epub 2010 Jun 10.

DOI:10.1126/science.1187187

PMID:20538914

Abstract

Here, we show that the approximately 10-million-year-old beta Pictoris system hosts a massive giant planet, beta Pictoris b, located 8 to 15 astronomical units from the star. This result confirms that gas giant planets form rapidly within disks and validates the use of disk structures as fingerprints of embedded planets. Among the few planets already imaged, beta Pictoris b is the closest to its parent star. Its short period could allow for recording of the full orbit within 17 years.

摘要

在这里，我们展示了大约 1000 万年前的β Pictoris 系统中存在一颗巨大的气态巨行星β Pictoris b，它距离恒星的距离为 8 到 15 个天文单位。这一结果证实了气态巨行星在原行星盘中迅速形成，并验证了使用原行星盘结构作为嵌入式行星指纹的方法。在已经成像的少数行星中，β Pictoris b 是离其母恒星最近的。它的短轨道周期可能允许在 17 年内记录完整的轨道。