J/AZh/79/841 Abundances of various elements in 20 Peg (Rachkovskaya, 2002)
Abundances of carbon, nitrogen, oxygen, and other elements in the atmosphere
of the giant 20 Peg
Rachkovskaya T.M.
<Astron. Zh. 79, 841 (2002)>
=2002AZh....79..841R 2002AZh....79..841R
=2002ARep...46..760R 2002ARep...46..760R
ADC_Keywords: Stars, giant; Spectroscopy ; Abundances, peculiar
Abstract:
Atmosphere study of the giant 20 Peg was investigated using
high-resolution spectra.
Description:
The observations were acquired with the 2.6m reflector of the Crimean
Astrophycal Observatory using an American-made EEV15-11 CCD array
(1024x256 pixels) in September-October, 1995 and in January and
October, 1999.
Objects:
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RA (2000) DE Designation(s)
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22 01 05.35 +13 07 11.4 20 Peg = HD 209166
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 51 84 Lines studied in the spectrum of 20 Peg
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- El Element name and ionisation
7- 13 F7.2 0.1nm Lambda Wavelength expressed in Angstroem
16- 20 F5.2 eV ExcPot Excitation potential of ground level
24- 28 F5.2 --- loggf1 Oscillator strength (log gf) from
Vienna database (1)
31- 35 F5.2 --- loggf2 ? Oscillator strength (log gf) from previous
work Rachkovskaya, 2000ARep...44..227R 2000ARep...44..227R (2)
37- 39 I3 0.1nm EW Equivalent width
42- 45 F4.2 --- logeps1 Elemental abundance (H=12) based on
Vienna database (1)
48- 51 F4.2 --- logeps2 ? Elemental abundance (H=12) based on
Rachkovskaya, 2000ARep...44..227R 2000ARep...44..227R (2)
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Note (1): Vienna database was used : Piskunov et al., 1995A&AS..112..525P 1995A&AS..112..525P
Note (2): Values from previous work, Rachkovskaya, 2000ARep...44..227R 2000ARep...44..227R, was used
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(End) Veta Avedisova (INASAN) 15-Feb-2003