The southern double stars of Carl Rümker III: Quantified probability of boundedness and preliminary Grade 5 orbits for some very long period doubles

Roderick Letchford, Graeme White, Allan Ernest

Research output: Contribution to journalArticlepeer-review

Abstract

All of the Southern double star pairs published by Carl Rümker in 1832 may be
classified as very wide and measures have been obtained for only a small fraction of a single orbit. We attempt to find orbital elements of some Rümker doubles, and give an objective probability as to their binary status. Of the 28 pairs discovered by Rumker, we show some evidence for orbital (bound) movement for pairs RMK 4 and 8 and propose grade 5 orbits forthem.
Original languageEnglish
Pages (from-to)761-770
Number of pages10
JournalJournal of Double Star Observations
Volume14
Issue number4
Publication statusPublished - 01 Oct 2018

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