The very local Hubble flow: Computer simulations of dynamical history

被引:42
作者
Chernin, AD [1 ]
Karachentsev, ID
Valtonen, MJ
Dolgachev, VP
Domozhilova, LM
Makarov, DI
机构
[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119899, Russia
[2] Turku Univ, Tuorla Observ, Piikkio 21500, Finland
[3] Univ Oulu, Astron Div, Oulu 90014, Finland
[4] Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia
[5] Univ W Indies, St Augustine, Trinidad Tobago
[6] Isaac Newton Inst Chile, SAO Branch, St Petersburg, Russia
关键词
galaxies : Local Group;
D O I
10.1051/0004-6361:20034170
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The phenomenon of the very local ( less than or equal to 3 Mpc) Hubble flow is studied on the basis of the data of recent precision observations. A set of computer simulations is performed to trace the trajectories of the flow galaxies back in time to the epoch of the formation of the Local Group. It is found that the "initial conditions" of the flow are drastically different from the linear velocity-distance relation. The simulations enable one also to recognize the major trends of the flow evolution and identify the dynamical role of universal antigravity produced by the cosmic vacuum.
引用
收藏
页码:19 / 25
页数:7
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