Variable Stars in the Archival HST Data of Globular Clusters M13, M30 and NGC 6712

• Autorzy: Pietrukowicz P. , Kaluzny J.
• Języki publikacji: EN

Abstrakty

EN

We have analyzed archival HST/WFPC2 time-series data of the central parts of globular clusters M13, M30 and NGC 6712 in search for variable objects. Among a total of 21 identified variables there are 15 new discoveries. The sample includes nine RR Lyr stars, two SX Phe stars and seven W UMa-type contact binaries. One object is preliminarily classified as a detached eclipsing binary and another as an ellipsoidal variable.

Słowa kluczowe

EN

globular clusters: individual: M13; globular clusters: individual: M30; globular clusters: individual: NGC 6712; binaries: eclipsing; stars: variables: RR Lyr

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2004
• Tom: Vol. 54, No. 1
• Strony: 19--31
• Opis fizyczny: Bibliogr. 13 poz., tab., wykr.

Twórcy

autor

Pietrukowicz P.

• Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw, Poland

autor

Kaluzny J.

• Copernicus Astronomical Center, Bartycka 18, 00-716 Warsaw, Poland

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