Abstract
view Abstract Citations (30) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Are all blue stragglers close binaries? Hintzen, P. ; Scott, J. ; Whelan, J. Abstract Radial velocity studies for five bright blue stragglers are reported, and cluster membership is confirmed for four of them. Two of the stars show no significant radial velocity variations on a time scale of about 75 days, and two others show no significant variation on time scales of 15 and 30 days, respectively. The star for which cluster membership is uncertain may be a velocity variable. The data do not support the theory of blue straggler production involving mass transfer in a close binary. A spread in formation time of the stars in a cluster is suggested to be a plausible explanation of the blue stragglers studied. Subject headings: binaries - open clusters - stellar evolution Publication: The Astrophysical Journal Pub Date: December 1974 DOI: 10.1086/153287 Bibcode: 1974ApJ...194..657H full text sources ADS | data products SIMBAD (8)
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