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- The binary second sequence in cluster colour-magnitude diagrams
- Hurley, Jarrod R.; Tout, Christopher A.
- We show how the second sequence seen lying above the main sequence in cluster colour-magnitude diagrams results from binaries with a large range of mass ratios and not just from those with equal masses. We conclude that the presence of a densely populated second sequence, with only sparse filling in between it and the single star main sequence, does not necessarily imply that binary mass ratios are close to unity.
- Publication type
- Journal article
- Monthly Notices of the Royal Astronomical Society, Vol. 300, no. 4 (November 1998), p. 977-980
- Publication year
- Binaries; Globular clusters; Photometry; Praesepe; Space telescope observations; Star clusters; Stars
- Publisher URL
- Copyright © 1998 the authors. Journal compilation copyright © 1998 Royal Astronomical Society. The accepted manuscript of the paper is reproduced here in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.
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- Peer reviewed