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 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:
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FileName Lrecl Records Explanations
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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
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See also:
J/A+A/356/529 : Catalogue of wide binaries (Allen+ 2000)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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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
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Byte-by-byte Description of file: *.dat
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Bytes Format Units Label Explanations
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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
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Acknowledgements: Silvano Desidera
(End) Patricia Bauer [CDS] 08-Apr-2004