Observations and analysis of the southern binary R Arae

Observations and analysis of the southern binary R Arae

This paper investigates the nature of the relatively bright eclipsing variable R Arae (HD 149730A), which has an orbital period of 4.42509 d, from the analysis of photometric UBV observations. The analyses indicate the relative radius of the secondary star is of the order of 0.20. This value is well...

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Veröffentlicht in:Astrophysics and space science 1991-06, Vol.180 (2), p.233-252
1. Verfasser: NIELD, K. M
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Astronomy
Binary and multiple stars
Earth, ocean, space
Eclipsing binaries
Exact sciences and technology
Stars
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creator NIELD, K. M
description This paper investigates the nature of the relatively bright eclipsing variable R Arae (HD 149730A), which has an orbital period of 4.42509 d, from the analysis of photometric UBV observations. The analyses indicate the relative radius of the secondary star is of the order of 0.20. This value is well below the limit which would classify the system as a semidetached binary. These results seem to be somewhat discordant with the spectroscopic and general photometric nature of the system, all of which suggest mass transfer processes to be occurring (therefore a possible semidetached status). (Author)
doi_str_mv 10.1007/BF00648180
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source EZB-FREE-00999 freely available EZB journals; SpringerLink Journals - AutoHoldings
subjects Astronomy
Binary and multiple stars
Earth, ocean, space
Eclipsing binaries
Exact sciences and technology
Stars
title Observations and analysis of the southern binary R Arae
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