Spiral Arms in the Disk of HD 142527

被引：0

作者：

Christiaens, Valentin ^{[1
]}

Casassus, Simon ^{[1
]}

Perez, Sebastian ^{[1
]}

van der Plas, Gerrit ^{[1
]}

Menard, Francois ^{[1
,2
]}

机构：

[1] Univ Chile, Dept Astron, Casilla 36-D, Santiago, Chile

[2] CNRS INSU, France UMI 3386, UMI FCA, Paris, France

来源：

REVOLUTION IN ASTRONOMY WITH ALMA: THE THIRD YEAR | 2015年 / 499卷

关键词：

PROTOPLANETARY DISK; GAP; TRANSPORT; COMPANION; EMISSION; ALMA;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In view of its large gap, previously reported asymmetries and near-infrared (NIR) spiral arms, the transition disk of the Herbig Fe star HD 142527 constitutes a remarkable case study. Based on our ALMA observations of the disk and previous NIR images, we try to infer the origin of the observed spirals. Different scenarios, including the effect of the binary companion, unseen planets, disk self-gravity and tidal interaction by a stellar encounter, are discussed in order to constrain the origin of the spirals. We conclude that at least a combination of two of the considered scenarios are required to account for the large annular gap, the NIR spirals and all three CO spirals.

引用

页码：273 / 276

页数：4

共 24 条

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