A search for a secondary frequency in the large-amplitude Delta Scuti star CY Aquarii

We have obtained V photometry of the large-amplitude Delta Scuti star CY Aquarii over a 3-week period at observatories in Australia, South Africa and the USA. Analysis of this photometry gives a conservative upper limit of 1.5 mmag for the amplitude of any long-lived secondary oscillation in the sta...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 1994-01, Vol.266 (1), p.1-6
Hauptverfasser:	Coates, D. W., Fernley, J. A., Sekiguchi, K., Barnes, T. G., Frueh, M. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology Low-amplitude blue variables (alpha cygni, beta cephei, delta scuti, delta delphini, delta canis majoris, sx phoenicius, etc.) Stars stars: individual: CY Aqr stars: oscillations Variable and peculiar stars (including novae) δ Scuti
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Beschreibung
Zusammenfassung:	We have obtained V photometry of the large-amplitude Delta Scuti star CY Aquarii over a 3-week period at observatories in Australia, South Africa and the USA. Analysis of this photometry gives a conservative upper limit of 1.5 mmag for the amplitude of any long-lived secondary oscillation in the star.
ISSN:	0035-8711 1365-2966
DOI:	10.1093/mnras/266.1.1