New variable stars in the globular cluster NGC 288
نویسندگان
چکیده
منابع مشابه
Variable Stars in the Field of the Globular Cluster Ngc
We report on the discovery and analysis of 14 short-period variable stars in the field of the southern globular cluster NGC 3201, located within roughly two magnitudes on either side of the main-sequence turnoff. 11 of these variable stars are eclipsing binaries, one is an RR Lyrae, and two are thus far unclassified systems. Among the eclipsing binary stars, nine are of the W Ursa Majoris (W UM...
متن کاملPhotometry of Variable Stars in the Globular Cluster NGC 6397
Time series BV I photometry is presented for 16 short-period variables located in the central region of the globular cluster NGC 6397. The sample includes 9 newly detected variables. The light curve of cataclysmic variable CV6 shows variability with a period of 0.2356 days. We confirm an earlier reported period of 0.472 days for cataclysmic variable CV1. Phased light curves of both CVs exhibit ...
متن کاملTelescope Study of the Globular Cluster Ngc 288
We report on the Chandra X-ray Observatory observations of the globular cluster NGC 288. We detect four X-ray sources within the core radius and seven additional sources within the half-mass radius down to a limiting luminosity of LX = 7×1030 ergs s−1 (assuming cluster membership) in the 0.3–7 keV band. We also observed the cluster with the Hubble Space Telescope Advanced Camera for Surveys and...
متن کامل0 Image - Subtraction Photometry of Variable Stars in the Field of the Globular Cluster NGC 6934
We present CCD BV I photometry of 85 variable stars from the field of the globular cluster NGC 6934. The photometry was obtained with the image subtraction package ISIS. 35 variables are new identifications: 24 RRab stars, 5 RRc stars, 2 eclipsing binaries of W UMa-type, one SX Phe star, and 3 variables of other types. Both detected contact binaries are foreground stars. The SX Phe variable bel...
متن کامل0 Image - Subtraction Photometry of Variable Stars in the Field of the Globular Cluster NGC
We present CCD BV I photometry of 85 variable stars from the field of the globular cluster NGC 6934. The photometry was obtained with the image subtraction package ISIS. 35 variables are new identifications: 24 RRab stars, 5 RRc stars, 2 eclipsing binaries of W UMa-type, one SX Phe star, and 3 variables of other types. Both detected contact binaries are foreground stars. The SX Phe variable bel...
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics Supplement Series
سال: 1997
ISSN: 0365-0138,1286-4846
DOI: 10.1051/aas:1997225