ON THE RR LYRAE STARS IN GLOBULARS. IV. ω CENTAURI OPTICAL UBVRI PHOTOMETRY

New accurate and homogeneous optical UBVRI photometry has been obtained for variable stars in the Galactic globular cluster ω Cen (NGC 5139). We secured 8202 CCD images covering a time interval of 24 years and a sky area of 84 × 48 arcmin. The current data were complemented with data available in th...

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Veröffentlicht in:	The Astronomical journal 2016-12, Vol.152 (6), p.170
Hauptverfasser:	Braga, V. F., Stetson, P. B., Bono, G., Dall’Ora, M., Ferraro, I., Fiorentino, G., Freyhammer, L. M., Iannicola, G., Marengo, M., Neeley, J., Valenti, E., Buonanno, R., Calamida, A., Castellani, M., da Silva, R., Degl’Innocenti, S., Di Cecco, A., Fabrizio, M., Freedman, W. L., Giuffrida, G., Lub, J., Madore, B. F., Marconi, M., Marinoni, S., Matsunaga, N., Monelli, M., Persson, S. E., Piersimoni, A. M., Pietrinferni, A., Prada-Moroni, P., Pulone, L., Stellingwerf, R., Tognelli, E., Walker, A. R.
Format:	Artikel
Sprache:	eng
Schlagworte:	ASTROPHYSICS, COSMOLOGY AND ASTRONOMY CALIBRATION CHARGE-COUPLED DEVICES COLOR COMPARATIVE EVALUATIONS DIAGRAMS DISTANCE LUMINOSITY METALLICITY METALS MILKY WAY PHOTOMETRY PULSATIONS SKY STAR CLUSTERS VARIABLE STARS
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