Title: Neutron Capture Elements in s-Process-Rich, Very Metal-Poor Stars Authors: Aoki W., Ryan S.G., Norris J.E., Beers T.C., Ando H., Iwamoto N., Kajino T., Mathews G.J., Fujimoto M.Y. Table: Lead hyperfine and isotope splitting ================================================================================ Byte-by-byte Description of file: datafileA6.txt -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 9 F9.4 0.1nm Wave Wavelength in Angstroms 11- 16 F6.4 --- Frac Fraction of the total gf value that should be assigned to each component 18- 20 I3 --- Iso Isotope mass number 22- 24 A3 --- f_Iso Flag on Iso (1) -------------------------------------------------------------------------------- Note (1): Manning et al. (1950) list the isotope splittings and intensities for three components of ^207^Pb due to the hyperfine splitting of the 4057 {AA} line, but provide only the center-of-gravity (cog) for the ^207^Pb component of the 3739 {AA} line. -------------------------------------------------------------------------------- 3739.9230 0.2260 207 cog 3739.9300 0.5230 208 3739.9420 0.2360 206 3739.9510 0.0150 204 4057.7662 0.1357 207 c 4057.8018 0.5230 208 4057.8149 0.2360 206 4057.8179 0.0151 207 b 4057.8261 0.0151 204 4057.8386 0.0753 207 a UPDATE: 19 July 2002 We have found more recent measurements for the Pb 4057 line which supercede the ones of Manning et al. (1950). The newer data appear to be of higher quality, and change the positions and strengths of the Pb207 lines. We now recommend the following, based on: Simons, J. W., Palmer, B. A., Hof, D. E., & Oldenborg, R. C 1989, J.Opt.Soc.Am.B, 6(6), 1097-1102 Characterization of several ultraviolet-visible emission lines from a lead hollow-cathode lamp line k cm^-1 frac lambda_vac lambda_air 207b 24637.226 0.015 4058.8985 4057.7524 207a 24637.001 0.135 4058.9356 4057.7895 208 24637.001 0.524 4058.9356 4057.7895 206 24636.919 0.236 4058.9491 4057.8030 204 24636.846 0.015 4058.9611 4057.8150 207c 24636.785 0.075 4058.9712 4057.8251