Two periods instead of one in a single 6.7 GHz methanol maser feature in G9.62+0.20E
文献类型:期刊论文
作者 | MacLeod, G. C.8,12; Yonekura, Y.11; Tanabe, Y.11; Baan, W. A.9,10; Brogan, C. L.7; Burns, R. A.13; Chibueze, J. O.6,14; Houde, M.5; Hunter, T. R.7; Kurtz, S. E.4 |
刊名 | Monthly Notices of the Royal Astronomical Society
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出版日期 | 2022-10-01 |
卷号 | 516期号:1页码:L96-L100 |
关键词 | masers stars: formation stars: protostars ISM: individual objects: G9.62+0.20E ISM: molecules radio lines: ISM h ii regions variability environment pulsation discovery Astronomy & Astrophysics |
ISSN号 | 0035-8711 |
DOI | 10.1093/mnrasl/slac083 |
产权排序 | 4 |
文献子类 | Article |
英文摘要 | The source G9.62+0.20E surprises yet again! Analysis of the associated methanol maser feature at v lsr = +8.8 km s(-1) revealed a second period of P = 52.1 +/- 0.3 d, along with the previously reported period P = 243 d for this source. Various explanations, harmonic flaring, Dicke's superradiance, a secondary pulsation, or two different periodically varying radio sources in the field of view with associated methanol masers are presented. The latter two hypotheses appear more plausible but it is not clear which, if any, best describe these observations. |
语种 | 英语 |
WOS记录号 | WOS:000934001900018 |
源URL | [http://ir.xao.ac.cn/handle/45760611-7/5141] ![]() |
专题 | 恒星形成与演化研究团组 |
作者单位 | 1.Thuringer Landessternwarte, Sternwarte 5, 07778 Tautenburg, Germany; 2.Dept of Mathematical Sciences, University of South Africa, Private Bag X6, Florida 1709, South Africa; 3.Perimeter institute for theoretical physics, Waterloo ON N2L 2Y5, Canada; 4.Institute of Radioastronomy and Astrophysics, National Autonomous University of Mexico, Antigua Carretera a Patzcuaro 8701, Morelia, 58089 Michoacan, Mexico; 5.Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street London ON N6A 3K7, Canada; 6.Department of Physics and Astronomy, Faculty of Physical Sciences, University of Nigeria, Carver Building, 1 University Road, Nsukka 410001 Nigeria; 7.NRAO, 520 Edgemont Rd, Charlottesville, VA 22903, USA; 8.Hartebeesthoek Radio Astronomy Observatory, PO Box 443, Krug er sdorp 741, South Africa; 9.Netherlands Institute for Radio Astronomy, ASTRON, 7991 PD, Dwingeloo, The Netherlands; 10.Xinjiang Astronomical Observatory, 150 Science 1-Street, Urumqi, Xinjiang 830011, P.R. China; |
推荐引用方式 GB/T 7714 | MacLeod, G. C.,Yonekura, Y.,Tanabe, Y.,et al. Two periods instead of one in a single 6.7 GHz methanol maser feature in G9.62+0.20E[J]. Monthly Notices of the Royal Astronomical Society,2022,516(1):L96-L100. |
APA | MacLeod, G. C..,Yonekura, Y..,Tanabe, Y..,Baan, W. A..,Brogan, C. L..,...&Sugiyama, K..(2022).Two periods instead of one in a single 6.7 GHz methanol maser feature in G9.62+0.20E.Monthly Notices of the Royal Astronomical Society,516(1),L96-L100. |
MLA | MacLeod, G. C.,et al."Two periods instead of one in a single 6.7 GHz methanol maser feature in G9.62+0.20E".Monthly Notices of the Royal Astronomical Society 516.1(2022):L96-L100. |
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