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J/ApJ/617/1091        La and Eu abundances in 85 stars        (Simmerer+, 2004)

The rise of the s-process in the Galaxy. Simmerer J., Sneden C., Cowan J.J., Collier J., Woolf V.M., Lawler J.E. <Astrophys. J., 617, 1091-1114 (2004)> =2004ApJ...617.1091S
ADC_Keywords: Abundances ; Stars, population II Keywords: Galaxy: disk - Galaxy: evolution - Galaxy: halo - stars: abundances - stars: kinematics - stars: Population II Abstract: From newly obtained high-resolution, high signal-to-noise ratio spectra the abundances of the elements La and Eu have been determined over the stellar metallicity range -3<[Fe/H]<+0.3 in 159 giant and dwarf stars. Lanthanum is predominantly made by the s-process in the solar system, while Eu owes most of its solar system abundance to the r-process. The changing ratio of these elements in stars over a wide metallicity range traces the changing contributions of these two processes to the Galactic abundance mix. Description: Spectra were obtained with the McDonald Observatory 2.7m telescope, using the "2d coude" cross-dispersed echelle spectrograph configured to a 2 pixel resolving power of R∼60,000 and a Tektronix 2048x2048 CCD. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 81 85 La abundances table4.dat 63 85 Eu abundances
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Star name 12- 16 F5.2 [---] A3988 ? Log of the 3988AA La line abundance (G1) 18- 22 F5.2 [---] A3995 ? Log of the 3995AA La line abundance (G1) 24- 28 F5.2 [---] A4086 ? Log of the 4086AA La line abundance (G1) 30- 34 F5.2 [---] A4123 ? Log of the 4123AA La line abundance (G1) 36- 40 F5.2 [---] A4333 ? Log of the 4333AA La line abundance (G1) 42- 46 F5.2 [---] A4662 ? Log of the 4662AA La line abundance (G1) 48- 52 F5.2 [---] A5122 ? Log of the 5122AA La line abundance (G1) 54- 58 F5.2 [---] A5303 ? Log of the 5303AA La line abundance (G1) 60- 64 F5.2 [---] A5797 ? Log of the 5797AA La line abundance (G1) 66- 70 F5.2 [---] A6930 ? Log of the 6930AA La line abundance (G1) 72- 76 F5.2 [---] Avg(La) Log of the average La abundance (G1) 78- 81 F4.2 [---] e_Avg(La) The 1σ error in Avg(La)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Star name 12- 16 F5.2 [---] A3918 ? Log of the 3918AA Eu line abundance (G1) 18- 22 F5.2 [---] A3907 ? Log of the 3907AA Eu line abundance (G1) 24- 28 F5.2 [---] A4129 ? Log of the 4129AA Eu line abundance (G1) 30- 34 F5.2 [---] A4205 ? Log of the 4205AA Eu line abundance (G1) 36- 40 F5.2 [---] A6437 ? Log of the 6437AA Eu line abundance (G1) 42- 46 F5.2 [---] A6645 ? Log of the 6645AA Eu line abundance (G1) 48- 52 F5.2 [---] A7217 ? Log of the 7217AA Eu line abundance (G1) 54- 58 F5.2 [---] Avg(Eu) ? Log of the average Eu abundance (G1) 60- 63 F4.2 [---] e_Avg(Eu) ? The 1σ error in Avg(Eu)
Global Notes: Note (G1): Where the abundance is log10(NX/NH)+12 (scale H=12).
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 24-Aug-2005
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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