Variability of the OH and H2O maser emission toward AS 501
- 作者: Ashimbaeva N.T.1, Colom P.2, Krasnov V.V.3, Lekht E.E.1, Pashchenko M.I.1, Rudnitskii G.M.1, Tolmachev A.M.3
- 
							隶属关系: 
							- Sternberg Astromical Institute
- LESIA, Observatoire de Paris-Meudon, CNRS, UPMC
- Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
 
- 期: 卷 61, 编号 1 (2017)
- 页面: 16-29
- 栏目: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/190245
- DOI: https://doi.org/10.1134/S1063772916120027
- ID: 190245
如何引用文章
详细
The results of observations of OH (λ = 18 cm) and H2O (λ = 1.35 cm) masers toward AS 501 obtained with the Nançay Observatory Radio Telescope (France) and the 22-m radio telescope of the Pushchino Radio Astronomy Observatory (Russia), respectively, are presented. Nine cycles of H2O maser activity ranging from 2.8 to 6.0 years were detected, identifying AS 501 as an irregular variable star. Zeeman splitting was found only in the 1612-MHz satellite line at −59.2 km/s. The splitting is 0.11 km/s, corresponding to a line-of-sight magnetic field strength of 0.48 mG. The field is directed toward the observer. The detected radial-velocity drift of the H2O emission features can be explained in a model with elongated filaments with radial-velocity gradients.
作者简介
N. Ashimbaeva
Sternberg Astromical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Universitetskii pr. 13, Moscow, 119992						
P. Colom
LESIA, Observatoire de Paris-Meudon, CNRS, UPMC
														Email: lekht@sai.msu.ru
				                					                																			                												                	法国, 							Meudon						
V. Krasnov
Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Pushchino, 142290						
E. Lekht
Sternberg Astromical Institute
							编辑信件的主要联系方式.
							Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Universitetskii pr. 13, Moscow, 119992						
M. Pashchenko
Sternberg Astromical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Universitetskii pr. 13, Moscow, 119992						
G. Rudnitskii
Sternberg Astromical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Universitetskii pr. 13, Moscow, 119992						
A. Tolmachev
Pushchino Radio Astronomy Observatory, Astro Space Center, Lebedev Physical Institute
														Email: lekht@sai.msu.ru
				                					                																			                												                	俄罗斯联邦, 							Pushchino, 142290						
补充文件
 
				
			 
						 
						 
					 
						 
						 
				 
  
  
  
  
  电邮这篇文章
			电邮这篇文章  开放存取
		                                开放存取 ##reader.subscriptionAccessGranted##
						##reader.subscriptionAccessGranted## 订阅存取
		                                		                                        订阅存取
		                                					