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J/A+A/283/759       CIV QSO absorption systems                 (Petitjean+ 1994)

CIV QSO absorption systems and properties of galactic haloes at high redshift Petitjean P., Bergeron J. <Astron. Astrophys. 283, 759 (1994)> =1994A&A...283..759P
ADC_Keywords: QSOs; Spectroscopy; Redshifts Keywords: cosmology: observations - quasars: absorption lines - galaxies: evolution - galaxies: clustering - galaxies: ISM Description: High spectral resolution (FWHM = 0.6 or 0.35 Å) were obtained for six high redshift QSOs, zem > 2.2, containing lines from 31 metal-rich absorption line systems amongst which 20 Civ doublets split in subcomponents with velocity differences within a system smaller than 400 km.s-1. Our survey has been combined with published data at similar resolution and the resulting sample comprises 35 systems, 23 of which are splitted in a total of 87 subcomponents. The mean redshift of the sample is <z> = 2.65. The observations were carried out at the F/8 Cassegrain focus of the 3.6m telescope at la Silla, between 1984 and 1989. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file qso.dat 33 10 Positions of the QSOs (from SIMBAD) table2.dat 101 166 Absorption lines table3.dat 48 99 Characteristic of the subcomponents
Byte-by-byte Description of file: qso.dat
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right Ascension J2000 (hours) 4- 5 I2 min RAm Right Ascension J2000 (minutes) 7- 10 F4.1 s RAs Right Ascension J2000 (seconds) 12 A1 --- DE- Declination J2000 (sign) 13- 14 I2 deg DEd Declination J2000 (degrees) 16- 17 I2 arcmin DEm Declination J2000 (minutes) 19- 20 I2 arcsec DEs Declination J2000 (seconds) 24- 32 A9 --- QSO Name of the QSO in tables 2 and 3
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 A8 --- QSO QSO name 11- 17 F7.2 0.1nm lambda ? Heliocentric wavelength of absorption lines 29- 32 F4.2 0.1nm REW ? Rest equivalent width of absorption lines 38- 41 F4.2 0.1nm e_REW ? rms uncertainty on REW 43- 59 A17 --- Ion Identification of element 61- 67 F7.5 --- zabs ? Mean redshift 70 I1 --- n ? Component number 74- 77 F4.1 [cm-2] logN ? Logarithm of the column density 79- 82 F4.2 [cm-2] e_logN ? rms uncertainty on logN 84- 88 F5.1 km/s b ? Doppler parameter 91- 93 F3.0 km/s e_b ? rms uncertainty on b 95-101 F7.5 --- zc ? Redshift of the component
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 9 A9 --- QSO QSO name 11 A1 --- r_QSO References (1) 13 I1 --- n Subcomponent number 15- 21 F7.5 --- z Redshift 23- 26 F4.0 km/s DeltaV Relative velocity 32- 36 F5.2 [cm-2] logN Logarithm of CIV column density 45- 48 F4.1 km/s b Doppler parameter for CIV
Note (1): References: a: Savaglio et al. 1994A&A...281..331S b: Pettini et al. 1983ApJ...273..436P c: Carswell et al. 1984ApJ...278..486C d: Wampler et al. 1993A&A...273...15W
History: * 30-Jul-2001: qso.dat, bibcodes and description added.
(End) Patricia Bauer [CDS] 23-Feb-1994
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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