A new method to simulate long-term evolution of stars near a massive Black Hole. Issue Volume 14:Issue S351(2019) (May 2019)

• Record Type: Journal Article
• Authors: Funato, Y.
• Editors: Bragaglia, Angela; Davies, Melvyn; Sills, Alison; Vesperini, Enrico
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S351(2019)
• Page Start: 434
• Page End: 437
• Publication Date: 2019-05
• Subjects: methods: numerical, -- galaxies: evolution, -- galaxies: structure; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319007993
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: N-body simulation is the necessary tool to investigate the evolution of star clusters. It is important to develop a time integration method which guarantees the appropriate accuracy and calculation cost. Here we present a new simple method for long term simulation of stars around a massive black hole in stellar systems. Usually the time integration orbits of stars revolving a massive black hole requires much simulation time. We introduce a time transformation which is a kind of "inverse KS regularization" of time. Using our method, the integration of the long term evolution near a black hole (BH) becomes easier, especially applied to relatively large star clusters and the Galactic Center.