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J/A+A/293/75 Abundances in zeta Scl open cluster (Edvardsson+, 1995)
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Abundance analysis and origin of the zeta Sculptoris open cluster
Edvardsson B., Pettersson B., Kharrazi M., Westerlund B.
<Astron. Astrophys. 293, 75 (1995)>
=1995A&A...293...75E (SIMBAD/NED Reference)
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ADC_Keywords: Clusters, open; Spectroscopy; Abundances
Keywords: open clusters and associations: individual: zeta Scl -
open clusters and associations: individual: Gould's Belt -
Galaxy: abundances - stars: abundances
Abstract:
We have determined chemical abundances and radial velocities for stars in
the field of the {zeta} Sculptoris cluster. We find that the cluster metal
deficiency previously found from UBV photometry is not supported; the
cluster overall metallicity, [Fe/H]=+0.23, is about 70% higher than the
solar value. The chemical abundance pattern appears unusual: the Ni/Fe
ratio is lower than typical for field stars with similar Fe and Ca
abundances, and the cluster may also be deficient in the {alpha} element
Si. For its age, the cluster is unusually far from the galactic disk,
=~240pc. The adopted heliocentric cluster radial velocity, +3.9km/s, shows
that it is close to its maximum distance from the galactic plane. We
suggest that the {zeta}Sculptoris cluster was formed in the galactic disk
45Myr ago by the interaction of a high velocity cloud with the
interstellar medium, and that its formation may be connected with that of
Gould's Belt.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3 67 93 Equivalent widths
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Byte-by-byte Description of file: table3
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Bytes Format Units Label Explanations
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1- 5 A5 --- Species Line identification:
chemical element and ionisation stage
7- 13 F7.2 0.1nm Lambda Wavelength
15- 19 F5.1 0.1pm W(5) []? Equivalent width in star No 5
21- 25 F5.1 0.1pm W(8) []? Equivalent width in star No 8
27- 31 F5.1 0.1pm W(28) []? Equivalent width in star No 28
33- 37 F5.1 0.1pm W(47) []? Equivalent width in star No 47
39- 43 F5.1 0.1pm W(57) []? Equivalent width in star No 57
45- 49 F5.1 0.1pm W(60) []? Equivalent width in star No 60
51- 55 F5.1 0.1pm W(63) []? Equivalent width in star No 63
57- 61 F5.1 0.1pm W(70) []? Equivalent width in star No 70
63- 67 F5.1 0.1pm W(125) []? Equivalent width in star No 125
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Table2: Stars identification (No. from Westerlund B., Garnier R.,
Lundgren K., Pettersson B., Breysacher J. 1988, A&AS 76, 101)
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No. Name V
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5 CoD-29 18906 10.70
8 CoD-29 18909 10.10
28 CoD-31 19554 10.51
38 CoD-30 19787 10.72
47 CoD-29 18938 10.23
54 CoD-31 19572 10.35
57 CoD-30 19801 10.38
60 CoD-31 19574 10.61
63 CoD-31 19576 10.60
70 CoD-31 19579 11.12
121 CoD-31 6 10.22
125 CoD-30 6 10.59
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(End) [UAO] 14-Jun-1994