Binary stars in globular clusters: detection of a binary sequence in NGC 2808?

Details Binary stars in globular clusters: detection of a binary sequence in NGC 2808? Binary stars in globular clusters: detection of a binary sequence in NGC 2808?

1997-07-12

arxiv.org/abs/astro-ph/9707139v1

Astronomy and Astrophysics

Astrophysics

4 pages, Latex, uses l-aa.sty, plus 3 .ps figures, accepted by Astronomy and Astrophysics, also available at http://www.bo.a

Scientific paper

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.

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