Evolution of Maser Emission in the Region of Active Star Formation G43.8–0.1. I. OH Maser Emission at 18 cm
- 作者: Colom P.1, Ashimbaeva N.T.2, Lekht E.E.2, Pashchenko M.I.2, Rudnitskii G.M.2, Tolmachev A.M.3
- 
							隶属关系: 
							- LESIA, Observatoire de Paris-Meudon, CNRS, UPMC
- Sternberg Astronomical Institute
- Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
 
- 期: 卷 63, 编号 7 (2019)
- 页面: 565-570
- 栏目: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/192977
- DOI: https://doi.org/10.1134/S1063772919070047
- ID: 192977
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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.
作者简介
P. Colom
LESIA, Observatoire de Paris-Meudon, CNRS, UPMC
														Email: lekht@sai.msu.ru
				                					                																			                												                	法国, 							Meudon Cedex, 92195						
N. Ashimbaeva
Sternberg Astronomical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Moscow, 119234						
E. Lekht
Sternberg Astronomical Institute
							编辑信件的主要联系方式.
							Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Moscow, 119234						
M. Pashchenko
Sternberg Astronomical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Moscow, 119234						
G. Rudnitskii
Sternberg Astronomical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Moscow, 119234						
A. Tolmachev
Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Pushchino, Moscow region, 142290						
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