Submillimeter-Wave Observations toward the Low-Mass Protostar IRAS 15398-3359 at Subarcsecond Resolution

被引：0

作者：

Oya, Yoko ^{[1
]}

Sakai, Nami ^{[1
]}

Watanabe, Yoshimasa ^{[1
]}

Yamamoto, Satoshi ^{[1
]}

Sakai, Takeshi ^{[2
]}

Hirota, Tomoya ^{[3
]}

Lindberg, Johan E. ^{[4
]}

Bisschop, Suzannne E. ^{[4
]}

Jorgensen, Jes K. ^{[4
]}

van Dishoeck, Ewine F. ^{[5
]}

机构：

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

[2] Univ Electrocommun, Chofu, Tokyo 1828585, Japan

[3] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[4] Univ Copenhagen, Osteer Voldgade 5-7, DK-1350 Copenhagen K, Denmark

[5] Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany

来源：

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

关键词：

DISK;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Subarcsecond 0 ''.5 images of H2CO and CCH line emission have been obtained in the 0.8 mm band toward the low-mass protostar IRAS 15398-3359 in the Lupus 1 cloud with ALMA. We have detected a compact component concentrated in the vicinity of the protostar and a well-collimated outflow cavity extending along the northeast-southwest axis. The inclination angle of the outflow is found to be almost edge-on (20 degrees) based on the kinematic structure of the outflow cavity. The centrally concentrated component is interpreted by use of a model of the infalling rotating envelope with the estimated inclination angle, and the mass of the protostar is estimated to be less than 0.09 M-circle dot.

引用

页码：221 / 222

页数：2

共 17 条

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