J/A+A/319/881 Ba II strength of barium stars (Gomez+ 1997)
Absolute magnitudes and kinematics of barium stars
Gomez A.E., Luri X., Grenier S., Prevot L., Mennessier M.O.,
Figueras F., Torra J.
<Astron. Astrophys. 319, 881 (1997)>
=1997A&A...319..881G 1997A&A...319..881G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, barium
Keywords: stars: absolute magnitude - barium stars - kinematics
Description:
The absolute magnitude of barium stars has been obtained from
kinematical data using a new algorithm based on the maximum-likelihood
principle. The method allows to separate a sample into groups
characterized by different mean absolute magnitudes, kinematics and
z-scale heights. Three groups belonging to the disk population have
been obtained. We give, for each star of these three groups, the
probability P of belonging to each of them and the assignation to the
most likely one (G). The first column gives an an identification
number: for most of the stars HD numbers are given, otherwise BD
numbers. The following two columns present the spectral type taken
from the INCA database and the strength of the BaII line (I_Ba) taken
from Lu catalogue (1991) V/81.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 45 300 Probability assignation to groups
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 7 A7 --- HD/BD HD or BD number
9- 20 A12 --- Sp Spectral Type
22- 24 F3.1 --- BaClass ? Barium intensity class
25 A1 --- BaCode Barium intensity code (1)
27 I1 --- G [1/3] Assigned Group
29- 33 F5.1 % P1 Probability of belonging to Group 1 (2)
35- 39 F5.1 % P2 Probability of belonging to Group 2 (2)
41- 45 F5.1 % P3 Probability of belonging to Group 3 (2)
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Note (1): c certain Ba stars in MacConnell, Frye, Upgren (1972AJ.....77..384M 1972AJ.....77..384M)
m marginal Ba in MacConnell, Frye, Upgren (1972AJ.....77..384M 1972AJ.....77..384M)
n non-barium stars (see Paper I, Lu et al. (1983AJ.....88.1367L 1983AJ.....88.1367L))
s not explained by Lu in his paper
: uncertainty flag on BaClass
Note (2): Group 1: Bright G and K giants
Group 2: Normal G and K giants
Group 3: G-type subgiants
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Acknowledgements: Ana E. Gomez
(End) Patricia Bauer [CDS] 28-Aug-1996