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J/A+A/281/465   Chemical Composition of alf UMi and V473 Lyr  (Andrievsky+ 1994)

The chemical composition of the s-Cepheids. I. Alpha Ursae Minoris (Polaris) and HR 7308 (V473 Lyr): unique Cepheids of the Galaxy Andrievsky S.M., Kovtyukh V.V., Usenko I.A. <Astron. Astrophys. 281, 465 (1994)> =1994A&A...281..465A
ADC_Keywords: Stars, variable ; Equivalent widths ; Spectroscopy Keywords: Cepheids - s-Cepheids - chemical composition Description: The spectrograms of the s-Cepheids alpha-UMi and HR 7308, taken at reciprocal dispersion of 9 A/mm with the Main Stellar Spectrograph at the Special Astrophysical Observatory's 6-m telescope, were analysed for determining chemical elements abundance. The results include the equivalent width, and the abundances in the two stars. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 80 9 Observational data table2.dat 65 30 Residual intensities for hydrogen line profiles table3.dat 66 33 Chemical composition of Alpha UMi table4.dat 62 35 Chemical composition of HR7308 annex.dat 34 441 Equivalent widths of lines in the spectra
Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 02 31 49.1 +89 15 51 alpha UMi = * 1 UMi = HR 424 19 15 59.5 +27 55 35 HR 7308 = V* V473 Lyr ---------------------------------------------------------- Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star name 13- 23 A11 --- Date Observation date 25- 35 F11.3 d HDJ Julian day 39- 43 F5.3 --- Phase [0,1[ Phase (see n_Phase) 46 I1 --- n_Phase [1,2] Phase calculated according to: 1: Arellano Ferro (1984MNRAS.209..481A) 2: Eggen (1985AJ.....90.1297E) 50- 55 A6 --- Emulsion Photographic emulsion used 57- 65 A9 0.1nm Region Spectral region (min/max wavelength) 69- 70 I2 min Exp Exposure time 74- 75 I2 --- S/N Signal-to-noise ratio
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 4 F4.1 0.1nm Dlambda Distance from center of line 8- 12 F5.3 --- Hbeta1 Residual intensity for hydrogen line profile of Alpha UMi 17- 21 F5.3 --- Hgamma1 Residual intensity for hydrogen line profile of Alpha UMi 26- 30 F5.3 --- Hbeta2a Residual intensity for hydrogen line profile of HR7308(1990) 35- 39 F5.3 --- Hgamma2a Residual intensity for hydrogen line profile of HR7308(1990) 45- 49 F5.3 --- Hbeta2b Residual intensity for hydrogen line profile of HR7308(1990) 53- 57 F5.3 --- Hgamma2b Residual intensity for hydrogen line profile of HR7308(1992) 61- 65 F5.3 --- Hdelta2b Residual intensity for hydrogen line profile of HR7308(1992)
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Ion Element and ionisation level 8- 10 I3 --- NL Number of lines used for this study 14- 17 F4.2 --- (E/H) Mean abundance relative to logN(H) = 12 (G1) 21- 25 F5.2 [Sun] [E/H] Mean abundance relative to solar value 29- 32 F4.2 [Sun] e_[E/H] ? rms uncertainty on [E/H] 36- 40 F5.2 [Sun] B+L ? [E/H] Result of Boyarchuck & Luybimkov (1981IzKry..64....3B) 44- 48 F5.2 [Sun] L+B ? [E/H] Luck & Bond (1986PASP...98..442L) 52- 56 F5.2 [Sun] GIR ? [E/H] Giridhar (1985, Proc. Coll. IAU 82, 100) 61- 64 F4.2 [Sun] SR+J ? [E/H] Sanwal, Rautela & Joshi (1988Ap&SS.140..131S)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Ion Element and ionisation level 8- 10 I3 --- NLa ? Number of lines used for the 1990 value 14- 17 F4.2 --- (E/H)a ? Mean abundance, 1990 value (G1) 21- 25 F5.2 [Sun] [E/H]a ? (E/H) with respect to solar 1990 value, 1990 value 29- 32 F4.2 [Sun] e_[E/H]a ? rms uncertainty on [E/H], 1990 value 35- 37 I3 --- NLb ? Line number used for average 1992 value 41- 44 F4.2 --- (E/H)b ? Mean abundance, average 1992 value (G1) 48- 52 F5.2 [Sun] [E/H]b ? (E/H) with respect to solar, average 1992 value 56- 59 F4.2 [Sun] e_[E/H]b ? rms uncertainty on [E/H], average 1992 value
Byte-by-byte Description of file: annex.dat
Bytes Format Units Label Explanations
1- 6 A6 --- Ion Element and ionisation level 8- 14 F7.2 0.1nm Lambda Wavelength 18- 20 I3 0.1pm EW1 ? Alpha UMi equivalent width 24- 26 I3 0.1pm EW2a ? HR7308(1990) equivalent width 29- 31 I3 0.1pm EW2b ? HR7308(1992) equivalent width
Global Notes: Note (G1): the mean abundance is relative to logN(H) = 12 In abundances determination the hyper-fine structure was not taken into account.

(End) Patricia Bauer [CDS] 15-Oct-1993
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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