Near-infrared imaging of the circumstellar disk around Herbig Ae star HD 150193A

被引：27

作者：

Fukagawa, M

Tamura, M

Itoh, Y

Hayashi, SS

Oasa, Y

机构：

[1] Univ Tokyo, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan

[2] Natl Astron Observ Japan, Opt & Infrared Astron Div, Tokyo 1818588, Japan

[3] Kobe Univ, Grad Sch Sci & Technol, Nada Ku, Kobe, Hyogo 6578501, Japan

[4] Natl Astron Observ Japan, Subaru Telescope, Hilo, HI 96720 USA

[5] Natl Space Dev Agcy Japan, Earth Observat Res Ctr, Chuo Ku, Tokyo 1046023, Japan

来源：

ASTROPHYSICAL JOURNAL | 2003年 / 590卷 / 01期

关键词：

binaries : general; planetary systems : protoplanetary disks; stars : pre-main-sequence;

D O I：

10.1086/376685

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present 0."1 resolution near-infrared imaging of Herbig Ae star HD 150193 (similar to6 Myr) and its T Tauri companion with the stellar coronagraphic camera (Coronagraphic Imager with Adaptive Optics) on the Subaru 8.2 m telescope. The images obtained reveal a circumstellar disk around the primary star extending from the edge of the coronagraphic mask at 50 AU to about 190 AU (1."3). No circumstellar structure was detected around the companion, which was separated by 165 AU (1."10) from the primary. For the circumprimary disk, the lower limit of the ratio between the disk and the total flux is estimated to be 1.3 x 10(-2). Asymmetries are seen in the surface brightness of this disk. Azimuthal asymmetry of the radial profile suggests that the companion has an effect on the distortion of the circumprimary disk. HD 150193 provides insight into the disk evolutionary process in binary systems.

引用

页码：L49 / L52

页数：4

共 26 条

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