Observations of Hydroxyl in the Onsala 1 Source at 18 cm
- 作者: Ashimbaeva N.1, Lekht E.1, Krasnov V.2, Tolmachev A.3
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隶属关系:
- Lomonosov Moscow State University, P.K. Sternberg State Astronomical Institute
- Astrospace Center of the P.N. Lebedev Physical Institute, Russian Academy of Sciences
- Pushchino Radio Astronomy Observatory, Astrospace Center of the P.N. Lebedev Physical Institute, Russian Academy of Sciences
- 期: 卷 100, 编号 3 (2023)
- 页面: 233-242
- 栏目: Articles
- URL: https://journals.rcsi.science/0004-6299/article/view/139069
- DOI: https://doi.org/10.31857/S0004629923030027
- EDN: https://elibrary.ru/PNLMUF
- ID: 139069
如何引用文章
详细
We present results of polarization observations of the ON 1 source in the 1665, 1667, and 1612 MHz hydroxyl lines at the Large Radio Telescope in Nançay (France). Spatial identification of the spectral features of OH in the 1665 and 1667 MHz lines with maser spots (condensations) on the VLBI map according to the data of Fish et al. (2005) was carried out. Emission from hitherto unknown spectral features in the 1665 MHz main line at radial velocities of –2.98, 9.35, and 11.8 km/s has been detected. Five Zeeman pairs were found: four in the 1665 MHz line and one in the 1667 MHz line. The vectors of the transverse magnetic field H⊥ are oriented mainly along the arc (in the upper and lower parts of the UC H II region), while the vectors of the longitudinal magnetic field H|| in the northern and central parts of the UC H II region are oriented away from the observer, while in the southern part toward the observer.
作者简介
N. Ashimbaeva
Lomonosov Moscow State University, P.K. Sternberg State Astronomical Institute
Email: lekht@sai.msu.ru
Moscow, Russia
E. Lekht
Lomonosov Moscow State University, P.K. Sternberg State Astronomical Institute
Email: lekht@sai.msu.ru
Moscow, Russia
V. Krasnov
Astrospace Center of the P.N. Lebedev Physical Institute, Russian Academy of Sciences
Email: lekht@sai.msu.ru
Moscow, Russia
A. Tolmachev
Pushchino Radio Astronomy Observatory, Astrospace Center of the P.N. Lebedev Physical Institute, Russian Academy of Sciences
编辑信件的主要联系方式.
Email: lekht@sai.msu.ru
Pushchino, Russia
参考
- G. C. MacLeod, E. Jr. Scalise, S. Saedt, J. A. Galt, and M. J. Gaylard, Astron. J. 116, 1897 (1998).
- M. S. N. Kumar, M. Tafalla, and R. Bachiller, Astron. and Astrophys. 426, 195 (2004).
- X. W. Zheng, P. T. P. Ho, M. J. Reid, and M. H. Schneps, Astrophys. J. 293, 522 (1985).
- A. L. Argon, M. J. Reid and K. M. Menten, Astrophys. J. Suppl. 129, 156 (2000).
- Y. N. Su, S. Y. Liu, J. Lim, N. Ohashi, et al., Astrophys. J. Letters 616, L39 (2004).
- T. Nagayama, A. Nakagawa, H. Imai, T. Omodaka, and Y. Sofue, Publ. Astron. Soc. Japan 60, 183 (2008).
- D. Downes, R. Genzel, I. M. Moran, K. J. Johnston, et al., Astron. and Astrophys. 79, 233 (1979).
- J. Lim, M. Choi, and P. T. Ho, ASP Conf. Ser. 267, 385 (2002).
- V. L. Fish, M. J. Reid, A. L. Argon, and X. W. Zheng, Astrophys. J. Suppl. 160, 220 (2005).
- V. L. Fish and M. J. Reid, Astrophys. J. Suppl. 164, 99 (2006).
- В. И. Слыш, М. И. Пащенко, Г. М. Рудницкий, В. М. Витрищак, П. Колом, Астрон. журн. 87(7), 655 (2010).
- Е. Е. Лехт, В. В. Краснов, А. М. Толмачев, Письма в Астрон. журн. 40, 611 (2014).
- П. Колом, Н. Т. Ашимбаева, Е. Е. Лехт, М. И. Пащенко, Г. М. Рудницкий, А. М. Толмачев, Астрон. журн. 98(1), 50 (2021).
- Н. Т. Ашимбаева, Е. Е. Лехт, М. И. Пащенко, В. В. Краснов, А. М. Толмачев, Астрон. журн. 99(8), 628 (2022).