ATCA OBSERVATIONS OF SiO MASERS IN THE GALACTIC CENTER
文献类型：期刊论文
| 作者 | Li, Juan1,2,3 ; An, Tao1; Shen, Zhi-Qiang1,2; Miyazaki, Atsushi4
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2010-09-01 |
| 卷号 | 720期号:1页码:L56-L61 |
| 关键词 | circumstellar matter Galaxy: center masers radio lines: stars stars: late-type |
| 英文摘要 | We present the Australia Telescope Compact Array observations of the SiO masers in the Galactic center (GC) in transitions of v = 1, J = 2-1 at 86 GHz and v = 1, J = 1-0 at 43 GHz. Two 86 GHz SiO masers were detected within the central parsec, and they are associated with IRS 10EE and IRS 15NE, respectively. We detected eighteen 43 GHz SiO masers within a projected separation of less than or similar to 2 pc from Sagittarius A*, among which seven masers are newly discovered from our observations. This raises the total number of 43 GHz SiO masers within the central 4 pc of the GC region to 22. Simultaneous observations at 86 and 43 GHz showed that the intensity of 43 GHz SiO maser is similar to 3 times higher than that of 86 GHz maser in IRS 10EE (an OH/IR star), while the integrated flux of the SiO maser emission at 43 GHz is comparable with that at 86 GHz in IRS 15NE (an ordinary Mira variable). These results are consistent with previous observations of massive late-type stars in the Galaxy in which the 86 GHz SiO maser is in general weaker than the 43 GHz SiO maser in OH/IR stars, while the two transitions are comparably strong in Mira stars. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SAGITTARIUS-A-ASTERISK ; OH/IR STARS ; PROPER MOTIONS ; CENTRAL PARSEC ; 86 GHZ ; VARIABILITY ; EMISSION ; GALAXY ; POSITION ; DISTANCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000281610100012 |
| 公开日期 | 2011-06-29 |
| 源URL | [http://119.78.226.72//handle/331011/13395]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Joint Inst Galaxy & Cosmol JOINGC SHAO & USTC, Shanghai 200030, Peoples R China 3.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 4.Natl Inst Nat Sci, Natl Astron Observ Japan, Mizusawa VLBI Observ, Oshu, Iwate 0230861, Japan |
| 推荐引用方式 GB/T 7714 | Li, Juan,An, Tao,Shen, Zhi-Qiang,et al. ATCA OBSERVATIONS OF SiO MASERS IN THE GALACTIC CENTER[J]. ASTROPHYSICAL JOURNAL LETTERS,2010,720(1):L56-L61. |
| APA | Li, Juan,An, Tao,Shen, Zhi-Qiang,&Miyazaki, Atsushi.(2010).ATCA OBSERVATIONS OF SiO MASERS IN THE GALACTIC CENTER.ASTROPHYSICAL JOURNAL LETTERS,720(1),L56-L61. |
| MLA | Li, Juan,et al."ATCA OBSERVATIONS OF SiO MASERS IN THE GALACTIC CENTER".ASTROPHYSICAL JOURNAL LETTERS 720.1(2010):L56-L61. |
入库方式： OAI收割
来源：上海天文台
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