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J/A+A/420/683       Equivalent widths of 23 wide binaries      (Desidera+, 2004)

Abundance difference between components of wide binaries. Desidera S., Gratton R.G., Scuderi S., Claudi R.U., Cosentino R., Barbieri M., Bonanno G., Carretta E., Endl M., Lucatello S., Martinez Fiorenzano A.F., Marzari F. <Astron. Astrophys. 420, 683 (2004)> =2004A&A...420..683D
ADC_Keywords: Stars, double and multiple ; Equivalent widths ; Spectroscopy Keywords: stars: abundances - stars: planetary systems - stars: binaries: visual - techniques: spectroscopic Abstract: We present iron abundance analysis for 23 wide binaries with main sequence components in the temperature range 4900-6300K, taken from the sample of the pairs currently included in the radial velocity planet search on going at the Telescopio Nazionale Galileo (TNG) using the high resolution spectrograph SARG. The use of a line-by-line differential analysis technique between the components of each pair allows us to reach errors of about 0.02dex in the iron content difference. Most of the pairs have abundance differences lower than 0.02dex and there are no pairs with differences larger than 0.07dex. The four cases of differences larger than 0.02dex may be spurious because of the larger error bars affecting pairs with large temperature difference, cold stars and rotating stars. Description: Equivalent widths for 23 wide binaries (46 stars) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 73 23 Star positions and magnitudes (from Simbad) bd231978.dat 37 61 Equivalent widths of BD+23 1978 hd008009.dat 37 133 Equivalent widths of HD 008009 hd008071.dat 37 166 Equivalent widths of HD 008071 hd009911.dat 37 113 Equivalent widths of HD 009911 hd013357.dat 37 187 Equivalent widths of HD 013357 hd017159.dat 37 150 Equivalent widths of HD 017159 hd019440.dat 37 152 Equivalent widths of HD 019440 hd030101.dat 37 146 Equivalent widths of HD 030101 hd033334.dat 37 134 Equivalent widths of HD 033334 hd066491.dat 37 163 Equivalent widths of HD 066491 hd106515.dat 37 125 Equivalent widths of HD 106515 hd108574.dat 37 153 Equivalent widths of HD 108574/5 hd123963.dat 37 177 Equivalent widths of HD 123963 hd132563.dat 37 167 Equivalent widths of HD 132563 hd132844.dat 37 173 Equivalent widths of HD 132844 hd135101.dat 37 180 Equivalent widths of HD 135101 hd190042.dat 37 176 Equivalent widths of HD 190042 hd200466.dat 37 125 Equivalent widths of HD 200466 hd213013.dat 37 110 Equivalent widths of HD 213013 hd215812.dat 37 178 Equivalent widths of HD 215812 hd216122.dat 37 145 Equivalent widths of HD 216122 hd219542.dat 37 160 Equivalent widths of HD 219542 hi104687.dat 37 158 Equivalent widths of HIP 104687
See also: J/A+A/356/529 : Catalogue of wide binaries (Allen+ 2000) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name Name of the primary 15- 16 I2 h RAh Right ascension (J2000.0) 18- 19 I2 min RAm Right ascension (J2000.0) 21- 24 F4.1 s RAs Right ascension (J2000.0) 26 A1 --- DE- Declination sign (J2000.0) 27- 28 I2 deg DEd Declination (J2000.0) 30- 31 I2 arcmin DEm Declination (J2000.0) 33- 34 I2 arcsec DEs Declination (J2000.0) 38- 42 F5.2 mag Bmag ? B magnitude 44- 48 F5.2 mag Vmag ? V magnitude 50- 60 A11 --- SpType MK Spectral type 62- 73 A12 --- File Name of the file containing the equivalent widths
Byte-by-byte Description of file: *.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Ion Element 7- 13 F7.2 0.1nm lambda Wavelength of line 15- 19 F5.2 eV EP Potential Energy 21- 25 F5.2 --- loggf Log Oscillator Strength 27- 31 F5.1 0.1pm EW(A) Equivalent width of primary 33- 37 F5.1 0.1pm EW(B) Equivalent width of secondary
Acknowledgements: Silvano Desidera
(End) Patricia Bauer [CDS] 08-Apr-2004
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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