Dynamical stability of the quadruple systems HD 68255/6/7 and HD 76644

dc.contributor.author	Zhuchkov R.
dc.contributor.author	Orlov V.
dc.contributor.author	Rubinov A.
dc.date.accessioned	2018-09-18T20:15:19Z
dc.date.available	2018-09-18T20:15:19Z
dc.date.issued	2006
dc.identifier.issn	1063-7729
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/138009
dc.description.abstract	We analyze the dynamical stability of the hierarchical quadruple systems HD 68255/6/7 and HD 76644 via numerical integration of the equations of motion of the four-body problem, with a chainlike regularization of close stellar interactions. The observational errors were taken into account using Monte Carlo simulations, assuming that they possessed a Gaussian distribution. HD 68255/6/7 is probably stable, while HD 76644 is unstable with a probability exceeding 0.97 and with a disruption time of no more than 105 years. The influence of the observational errors and possible scenarios for the formation of unstable multiple stars are discussed. © Pleiades Publishing, Inc., 2006.
dc.relation.ispartofseries	Astronomy Reports
dc.title	Dynamical stability of the quadruple systems HD 68255/6/7 and HD 76644
dc.type	Article
dc.relation.ispartofseries-issue	1
dc.relation.ispartofseries-volume	50
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	62
dc.source.id	SCOPUS10637729-2006-50-1-SID33644688560

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