The Kinematics of the Methanol Maser at 6.7 GHz in Cepheus A

被引：0

作者：

Sugiyama, Koichiro ^{[1
]}

Fujisawa, K. ^{[1
]}

Wajima, K. ^{[1
]}

Sawada-Satoh, S. ^{[1
]}

Isono, Y. ^{[1
]}

Honma, M. ^{[2
]}

Murata, Y. ^{[3
]}

Mochizuki, N. ^{[3
]}

Doi, A. ^{[3
]}

机构：

[1] Yamaguchi Univ, 1677-1 Yoshida, Yamaguchi 7538512, Japan

[2] Natl Astronom Observ Japan, Mitaka, Tokyo 1818588, Japan

[3] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Kanagawa 2298510, Japan

来源：

APPROACHING MICRO-ARCSECOND RESOLUTION WITH VSOP-2: ASTROPHYSICS AND TECHNOLOGY | 2009年 / 402卷

关键词：

JET; HW2;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have conducted VLBI observations of methanol masers at 6.7 GHz with JVN and water maser at 22.2 GHz with VERA in the massive star-forming region Cepheus A (Cep A). The distribution of methanol maser spots showed an arc-like structure. Comparing the distributions of CH3CN line emission and continuum emission at 8, 22, and 43 GHz obtained from other observations, we inferred that the 6.7-GHz methanol masers in Cep A originates from a rotating disk with a radius of 690 AU, a PA of 110 degrees, and an inclination of 73 degrees. Also, some of the water masers in this region may be associated with the rotating disk.

引用

页码：392 / +

页数：2

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