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Modeling gravitational few-body problems with tsunami and okinami

Published online by Cambridge University Press:  20 January 2023

Alessandro A. Trani Open the ORCID record for Alessandro A. Trani [Opens in a new window]  and
Mario Spera
Alessandro A. Trani*
Affiliation:
Department of Earth Science and Astronomy, College of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan Okinawa Institute of Science and Technology, 1919-1 Tancha, Onna-son, Okinawa 904-0495, Japan
Mario Spera
Affiliation:
SISSA, Via Bonomea 265, I-34136, Trieste, Italy INFN, Sezione di Trieste, I-34127 Trieste, Italy INFN, Sezione di Padova, Via Marzolo 8, I-35131, Padova, Italy
*
email: aatrani@gmail.com
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Abstract

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In recent years, an increasing amount of attention is being paid to the gravitational few-body problem and its applications to astrophysical scenarios. Among the main reasons for this renewed interest there is large number of newly discovered exoplanets and the detection of gravitational waves. Here, we present two numerical codes to model three- and few-body systems, called tsunami and okinami. The tsunami code is a direct few-body code with algorithmic regularization, tidal forces and post-Newtonian corrections. okinami is a secular, double-averaged code for stable hierarchical triples. We describe the main methods implemented in our codes, and review our recent results and applications to gravitational-wave astronomy, planetary science and statistical escape theories.

Keywords

stars: kinematics and dynamicsmethods: numericalgravitational wavesgravitation
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 16 , Symposium S362: The Predictive Power of Computational Astrophysics as a Discovery Tool , June 2020 , pp. 404 - 409
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2023. Published by Cambridge University Press on behalf of International Astronomical Union

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