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1997A&A...327..598F - Astronomy and Astrophysics, volume 327598-601 (1997/11-2)
Binary stars in globular clusters: detection of a binary sequence in NGC 2808?
FERRARO F.R., CARRETTA E., FUSI PECCI F. and ZAMBONI A.
Abstract (from CDS):
A CCD V,V-I colour-magnitude diagram (CMD) of the Galactic globular cluster NGC 2808 has been obtained with the ESO-NTT, reaching down to V∼24. The highly populated Main Sequence (MS) presents a significant broadening redward to the MS ridge line, larger than expected from photometric errors alone, which could be interpreted as due to binary candidates.
Abstract Copyright: ∼
Journal keyword(s): cluster: globular: individual: NGC 2808 - HR diagram - Techniques: photometry, stars: Population II - binaries: general
Simbad objects: 1
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