Eclipsing Binaries in the Open Cluster NGC 2243 - I. Photometry

• Autorzy: Kaluzny, J. , Krzeminski, W. , Thompson, I. B. , Stachowski, G.
• Języki publikacji: EN

Abstrakty

EN

We obtained BV time series photometry for 12 variable stars from the field of the old open cluster NGC 2243. The sample includes 3 newly identified detached/semi-detached binaries. There are now four detached eclipsing binaries which are likely members of the cluster. Determination of the absolute parameters of the components would provide a valuable check on evolutionary models of low-mass stars. An accurate ephemeris and orbital period analysis are presented for the previously-known detached binary NV CMa. We also provide ephemerides for seven other periodic variables. We show that three contact binaries are likely members of the cluster.

Słowa kluczowe

EN

binaries: eclipsing; Stars: individual: NV CMa; open clusters and associations: individual: NGC 2243

• Czasopismo: Acta Astronomica
• Rocznik: 2006
• Tom: Vol. 56, No. 1
• Strony: 51--63
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Kaluzny, J.

• Nicolaus Copernicus Astronomical Center, ul.Bartycka18, 00-716Warsaw, Poland,

autor

Krzeminski, W.

• Las Campanas Observatory, Casilla601, LaSerena, Chile,

autor

Thompson, I. B.

• The Observatories of the Carnegie Institution of Washington, 813Santa Barbara Street, Pasadena, CA91101, USA,

autor

Stachowski, G.

• Nicolaus Copernicus Astronomical Center, ul.Bartycka18, 00-716Warsaw, Poland,

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