========================================================================== J/A+A/364/237 Elemental abundances of Deneb (Albayrak+, 2000) The following files can be converted to FITS (extension .fit .fgz or .fiZ) abund.dat tablea1.dat ========================================================================== Query from: http://vizier.u-strasbg.fr/cgi-bin/VizieR?-source=J/A+A/364/237 ==========================================================================
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Beginning of ReadMe : J/A+A/364/237 Elemental abundances of Deneb (Albayrak+, 2000) ================================================================================ A spectral analysis of Deneb (A2 Iae). Albayrak B. <Astron. Astrophys. 364, 237 (2000)> =2000A&A...364..237A ================================================================================ ADC_Keywords: Stars, supergiant ; Abundances, peculiar ; Equivalent widths ; Spectroscopy Keywords: stars: individual: Deneb - stars: fundamental parameters - stars: abundances - stars: evolution - stars: supergiants Abstract: This study presents a detailed model atmosphere abundance analysis of Deneb which was performed using Kurucz LTE ATLAS9 model atmospheres. The atmospheric parameters were determined from Mg I/II and Fe I/II equilibrium, and by fitting the Hgamma profile and optical region spectrophotometry. The compromise values which best satisfy these criteria are T_eff_ = 9000 K and log g = 1.45. The Mg I, Mg II, Si II, Ti II, Cr II, Fe I, and Fe II lines yield microturbulences of 3.60, 6.50, 8.50, 8.00, 11.90, 3.60, and 10.40 km/s, respectively. An average microturbulence of 7 km/s was used for the other atomic species. Description: The analysis of all line data for Deneb is in Table A1. The lines are sorted according to species; multiplet number, wavelength, the gf-value with its source, and the deduced abundance are listed. Equivalent widths are given per line in miliAngstroems. Spectral lines that are significantly blended with other elements have been removed. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 20 41 25.9 +45 16 49 Deneb = alpha Cyg ----------------------------------------------------------
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