J/ApJ/521/682 Binaries in the Praesepe and Coma clusters (Abt+, 1999)
Binaries in the Praesepe and Coma star clusters and their implications for
binary evolution
Abt H.A., Willmarth D.W.
<Astrophys. J. 521, 682 (1999)>
=1999ApJ...521..682A 1999ApJ...521..682A
ADC_Keywords: Binaries, spectroscopic ; Clusters, open ; Spectroscopy
Keywords: binaries: spectroscopic - open clusters and associations:
individual (Coma, Praesepe) - stars: evolution - stars: statistics
Abstract:
This completes a study of the evolution of binary systems in five open
clusters of various ages. Among 21 stars observed in Praesepe, eight
are found or confirmed to be spectroscopic binaries and orbital
elements are derived, while one more shows long-term binary motion.
Among 18 stars observed in the Coma Berenices cluster, five are found
or confirmed to be spectroscopic binaries and orbital elements are
derived, while a sixth has tentative elements.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 39 1567 Radial velocities of Praesepe and Coma stars
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See also:
J/AJ/106/637 : ICCD speckle observations. IX (Mason+, 1993)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
10- 15 A6 --- m_Name Multiplicity designation
19- 29 F11.3 d JD Julian date
35- 39 F5.1 km/s Vrad Radial velocity
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History:
From ApJ electronic edition
(End) Greg Schwarz [AAS] 28-Apr-2000