Japanese VLBI Network Observations of SiO Masers in the M-Type Giant IRC −10414
Japanese VLBI Network Observations of SiO Masers in the M-Type Giant IRC −10414
复制标题
日本 VLBI 网络对 M 型巨型 IRC -10414 中 SiO 脉塞的观测
DOI:
10.1093/pasj/60.5.1051
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发表时间:
2008
影响因子:
2.3
通讯作者:
T. Omodaká
中科院分区:
文献类型:
--
作者:
K. Ueda;H. Imai;S. Deguchi;R. Kamohara;Toshihisa Maeda;N. Matsumoto;T. Omodaká
We present two-epoch maps of SiO masers (v = 1a ndv = 2, J = 1–0) associated with the M-type star IRC � 10414, which were obtained with the Japanese VLBI Network (JVN). The spatial and Doppler velocity distributions, and the intensity ratio of the v = 1t ov = 2( J = 1–0) lines have significantly changed for eight years since our previous Very Long Baseline Array (VLBA) observation. The maser proper motions revealed by these twoepoch observations with an interval of one month are quite random and too fast to be explained by ballistic motions of the maser clumps. The maser distributions seen in the present observations cannot be explained by a rotatinginfalling ring model implied in the previous work. We discuss the kinematical relation between the SiO and H2O masers in IRC � 10414. In the present observations, the scale sizes of SiO v = 1a ndv = 2 masers in IRC � 10414 were roughly equal, as observed in typical Mira variables.
DOI:
--
发表时间:
2007
期刊:
Publications of the Astronomical Society of Japan 59、No4
影响因子:
--
作者:
Yamauchi,A.;et. al.;M.Honma;S.Oizumi;T.Nagayama;T.Hirota;N.Inomata
通讯作者:
N.Inomata
DOI:
--
发表时间:
2005
期刊:
The Astrophysical Journal 622
影响因子:
--
作者:
Saitoh;T;T.Shimoikura;A.Nakagawa;M.Honma;H.Imai;H.Imai
通讯作者:
H.Imai