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A Triple Main Sequence in the Globular Cluster NGC 2808

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Piotto, G., Bedin, L. R., Anderson, J., King, I. R., Cassisi, S., Milone, A. P., Villanova, S., Pietrinferni, A., Renzini, A.·2007·The Astrophysical Journal
DOI 10.1086/518503
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Abstract

Accurate photometry with HST 's ACS shows that the main sequence (MS) of the globular cluster NGC 2808 splits into three separate branches. The three MS branches may be associated with the complexities of the cluster's horizontal branch and of its abundance distribution. We attribute the MS branches to successive rounds of star formation, with different helium abundances; we discuss possible sources of helium enrichment. Some other massive globulars also appear to have complex populations; we compare them with NGC 2808.

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Metadata

Authors
Piotto, G., Bedin, L. R., Anderson, J., King, I. R., Cassisi, S., Milone, A. P., Villanova, S., Pietrinferni, A., & Renzini, A.
Venue
The Astrophysical Journal
Publisher
American Astronomical Society
Published
2007-04-23
Volume
661
Issue
1
Pages
L53-L56
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
DOI
10.1086/518503
OpenAlex
W1965833899
Cited by
689
References
0
FWCI
34.83
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: A Triple Main Sequence in the Globular Cluster NGC 2808. https://app.cochat.ai/papers/10.1086/518503
The paper
Piotto, G., Bedin, L. R., Anderson, J., King, I. R., Cassisi, S., Milone, A. P., Villanova, S., Pietrinferni, A., & Renzini, A. (2007). A Triple Main Sequence in the Globular Cluster NGC 2808. The Astrophysical Journal. https://doi.org/10.1086/518503

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.