Evolution of Maser Emission in the Region of Active Star Formation G43.8–0.1. I. OH Maser Emission at 18 cm
- Авторлар: Colom P.1, Ashimbaeva N.T.2, Lekht E.E.2, Pashchenko M.I.2, Rudnitskii G.M.2, Tolmachev A.M.3
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Мекемелер:
- LESIA, Observatoire de Paris-Meudon, CNRS, UPMC
- Sternberg Astronomical Institute
- Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
- Шығарылым: Том 63, № 7 (2019)
- Беттер: 565-570
- Бөлім: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/192977
- DOI: https://doi.org/10.1134/S1063772919070047
- ID: 192977
Дәйексөз келтіру
Аннотация
The results of observations of OH maser emission in the star-forming region G43.8–0.1 are presented. In spite of strong flux-density variations in the main lines at 1665 and 1667 MHz, the radial velocities of the spectral features varied only slightly. The main spectral features are identified with maser spots in previously published maps for epochs 1993 and 2001. It is suggested that the regions of OH maser emission may be elongated, nonuniform structures with weak radial velocity gradients (larger-scale analogs of water-maser filaments). The line-of-sight magnetic fields are determined for two Zeeman pairs, which remained essentially constant over at least 17 years.
Авторлар туралы
P. Colom
LESIA, Observatoire de Paris-Meudon, CNRS, UPMC
Email: lekht@sai.msu.ru
Франция, Meudon Cedex, 92195
N. Ashimbaeva
Sternberg Astronomical Institute
Email: lekht@sai.msu.ru
Ресей, Moscow, 119234
E. Lekht
Sternberg Astronomical Institute
Хат алмасуға жауапты Автор.
Email: lekht@sai.msu.ru
Ресей, Moscow, 119234
M. Pashchenko
Sternberg Astronomical Institute
Email: lekht@sai.msu.ru
Ресей, Moscow, 119234
G. Rudnitskii
Sternberg Astronomical Institute
Email: lekht@sai.msu.ru
Ресей, Moscow, 119234
A. Tolmachev
Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
Email: lekht@sai.msu.ru
Ресей, Pushchino, Moscow region, 142290
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