Methanol absorption at 12.2 GHz towards Sgr B2
文献类型：期刊论文
| 作者 | WHITEOAK, JB1; GARDNER, FF1; CASWELL, JL1; NORRIS, RP1; WELLINGTON, KJ1; Peng SL(彭守礼)2
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 1988-12 |
| 卷号 | 235期号:3页码:655-662 |
| ISSN号 | 0035-8711 |
| 产权排序 | 第二完成单位 |
| 通讯作者 | WHITEOAK, JB |
| 英文摘要 | The 12.2-GHz 20-3-1 transition of CH3OH has been mapped over the continuum source Sgr B2 with a 2-arcmin beam. Strong absorption was observed from three molecular clouds at velocities near 50, 65 and 80 km s-1; the line-to-continuum ratios attained maximum values of 0.70, 0.75 and 0.45 for these clouds. In addition, maser emission was detected near the location of the southernmost H2CO masers. The CH3OH absorption characteristics for these clouds, for foreground clouds near zero velocity, and for the 40 km s-1 cloud towards Sgr A, are all similar to those observed for the 14.5 GHz transition of H2CO. The column densities, however, are about an order of magnitude higher for CH3OH than for H2CO. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 收录类别 | SCI |
| 原文出处 | http://mnras.oxfordjournals.org/content/235/3/655 |
| 语种 | 英语 |
| WOS记录号 | WOS:A1988R186300011 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/4085]  |
| 专题 | 云南天文台_其他 |
| 作者单位 | 1.Division of Radiophysics, CSIRO, PO Box 76, NSW 2121, Australia 2.Yunnan Observatory, PO Box 110, Kunming, People's Republic of China |
| 推荐引用方式 GB/T 7714 | WHITEOAK, JB,GARDNER, FF,CASWELL, JL,et al. Methanol absorption at 12.2 GHz towards Sgr B2[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,1988,235(3):655-662. |
| APA | WHITEOAK, JB,GARDNER, FF,CASWELL, JL,NORRIS, RP,WELLINGTON, KJ,&Peng SL.(1988).Methanol absorption at 12.2 GHz towards Sgr B2.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,235(3),655-662. |
| MLA | WHITEOAK, JB,et al."Methanol absorption at 12.2 GHz towards Sgr B2".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 235.3(1988):655-662. |
入库方式： OAI收割
来源：云南天文台
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