Time variation of SiO masers in VX sagittarii over an optically quiescent phase
文献类型：期刊论文
| 作者 | Kamohara, R; Deguchi, S; Miyoshi, M; Shen, ZQ |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2005 |
| 卷号 | 57期号:2页码:341-345 |
| 关键词 | masers stars : AGB and post-AGB stars : individual (VX Sagittarii) stars : late-type stars : oscillations |
| 英文摘要 | The time variation of SiO masers in a semi-regular variable, VX Sgr, was investigated in the period between 1994 and 2004 when the optical light curve exhibited an ∼ 6-yr quiescent phase intercepting a regularly pulsating era. The quiescent period occurred with a delay of several years after a decrease in the SiO maser flux. VLBA observations of SiO masers made during this period showed no drastic spatial variation except for emission features being shifted from south-west to north-east. The SiO maser flux decrease, and a succeeding optical quiescent phase, may indicate that the stellar mass-loss rate diminished over a few years around 1994. A SiO maser flare occurring in 1999 may be a reminiscence of a final gas blow, which resulted in the optically quiescent period. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | GIANT BRANCH STARS ; CIRCUMSTELLAR ENVELOPE ; MASS-LOSS ; VARIABILITY ; EVOLUTION ; VARIABLES ; EMISSION ; LIGHT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000229007000008 |
| 源URL | [http://119.78.226.72/handle/331011/19437]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Natl Astron Observ, VERA Project Off, Tokyo 1818588, Japan 2.Kagoshima Univ, Fac Sci, Kagoshima 8900065, Japan 3.Natl Astron Observ, Nobeyama Radio Observ, Minamisa Ku, Nagano 3841305, Japan 4.Natl Astron Observ, Div Radio Astron, Tokyo 1818588, Japan 5.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 6.Japan Aerosp Explorat Agcy, Inst Space & Astron Sci, Kanagawa 2298510, Japan 7.Natl Astron Observ, Tokyo 1818588, Japan |
| 推荐引用方式 GB/T 7714 | Kamohara, R,Deguchi, S,Miyoshi, M,et al. Time variation of SiO masers in VX sagittarii over an optically quiescent phase[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2005,57(2):341-345. |
| APA | Kamohara, R,Deguchi, S,Miyoshi, M,&Shen, ZQ.(2005).Time variation of SiO masers in VX sagittarii over an optically quiescent phase.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,57(2),341-345. |
| MLA | Kamohara, R,et al."Time variation of SiO masers in VX sagittarii over an optically quiescent phase".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 57.2(2005):341-345. |
入库方式： OAI收割
来源：上海天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。