Can N-body systems generate periodic gravitational waves?

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dc.creatorChiba, Takamasa
dc.creatorImai, Tatsunori
dc.creatorAsada, Hideki
dc.date2006-09-28
dc.date2007-02-08
dc.date.accessioned2026-07-07T11:04:13Z
dc.date.available2026-07-07T11:04:13Z
dc.descriptionNone of N-body gravitating systems have been considered to emit periodic gravitational waves because of their chaotic orbits when N=3 (or more). We employ a figure-eight orbit as a specific model for a 3-body system in order to illustrate that some of triple stars are capable of generating periodic waves. This illustration would imply that a certain class of N-body gravitating systems may be relevant to the gravitational waves generation. We show also that the total angular momentum of this 3-body system is not carried away by gravitational waves. A waveform generated by this system is volcano-shaped and thus different from that of a binary system. Finally, by evaluating the radiation reaction time scale, we give an order-of-magnitude estimate of merging event rates. The estimate suggests that figure-eight sources, which require carefully prepared initial states, may be too rare to detect.
dc.description4 pages, 3 figures, version accepted for publication in MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0609773
dc.identifierhttp://arxiv.org/abs/astro-ph/0609773
dc.identifierMon.Not.Roy.Astron.Soc.377:269-272,2007
dc.identifierdoi:10.1111/j.1365-2966.2007.11619.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188817
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCan N-body systems generate periodic gravitational waves?
dc.typetext

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