ON UTMOST MULTIPLICITY OF HIERARCHICAL STELLAR SYSTEMSстатья
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Дата последнего поиска статьи во внешних источниках: 11 мая 2017 г.
Аннотация:According to theoretical considerations, multiplicity of hierarchical
stellar systems can reach, depending on masses and orbital parameters, several
hundred, while observational data confirm existence of at most septuple (sevencomponent)
systems. In this study, we cross-match very high multiplicity (six
and more components) stellar systems in modern catalogues of visual double
and multiple stars, to find candidates to hierarchical systems among them.
After cross-matching with catalogues of closer binaries (eclipsing, spectroscopic,
etc.), some of their components were found to be binary/multiple themselves,
which increases the system’s degree of multiplicity. Optical pairs, known from
literature or filtered by the authors, are flagged and excluded from the statistics.
We have compiled a list of potentially very high multiplicity hierarchical systems
that contains 10 objects. Their multiplicity does not exceed 12, and we discuss
a number of ways to explain the lack of extremely high multiplicity systems.