Speckle observations of the central binary star in the Red Rectangle

The binary nature of the central star in the Red Rectangle HD 44179 has been confirmed using the Imperial College speckle interferometer on the AAT. The position angle of 146 ± 3° and separation 0.29 ± 0.02 arcsec are given for 1981 November 11. An orbital period of 60 ± 5yr and a total mass of the...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 1983-11, Vol.205 (1), p.53P-56P
Hauptverfasser:	Meaburnn, J., Walsh, J. R., Hebden, J. C., Morgan, B. L., Vine, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Binary and multiple stars Earth, ocean, space Exact sciences and technology Stars
Online-Zugang:	Volltext
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Zusammenfassung:	The binary nature of the central star in the Red Rectangle HD 44179 has been confirmed using the Imperial College speckle interferometer on the AAT. The position angle of 146 ± 3° and separation 0.29 ± 0.02 arcsec are given for 1981 November 11. An orbital period of 60 ± 5yr and a total mass of the two components of the binary $\simeq 31M_\odot$ are both predicted. No correlation between the inclination of the orbit and the striking geometry of the nebulosity is found.
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/205.1.53P