The mass of the black hole in the X-ray binary LMC X-1
- Authors: Abubekerov M.K.1, Antokhina E.A.1, Gostev N.Y.1, Cherepashchuk A.M.1, Shimansky V.V.2
- 
							Affiliations: 
							- Sternberg Astronomical Institute
- Kazan Federal University
 
- Issue: Vol 60, No 12 (2016)
- Pages: 1029-1034
- Section: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/190207
- DOI: https://doi.org/10.1134/S1063772916120015
- ID: 190207
Cite item
Abstract
A dynamical estimate of the mass of the black hole in the LMC X-1 binary system is obtained in the framework of a Roche model for the optical star, based on fitting of the He I 4471 Å and He II 4200 Å absorption lines assuming LTE. The mass of the black hole derived from the radial-velocity curve for the He II 4200 Å line is mx = 10.55 M⊙, close to the value found earlier based on a model with two point bodies [1].
About the authors
M. K. Abubekerov
Sternberg Astronomical Institute
														Email: elant@sai.msu.ru
				                					                																			                												                	Russian Federation, 							Moscow						
E. A. Antokhina
Sternberg Astronomical Institute
							Author for correspondence.
							Email: elant@sai.msu.ru
				                					                																			                												                	Russian Federation, 							Moscow						
N. Yu. Gostev
Sternberg Astronomical Institute
														Email: elant@sai.msu.ru
				                					                																			                												                	Russian Federation, 							Moscow						
A. M. Cherepashchuk
Sternberg Astronomical Institute
														Email: elant@sai.msu.ru
				                					                																			                												                	Russian Federation, 							Moscow						
V. V. Shimansky
Kazan Federal University
														Email: elant@sai.msu.ru
				                					                																			                												                	Russian Federation, 							Kazan						
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