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J/A+A/321/123       Optical variability of QSOs (Cristiani+ 1997)

The optical variability of QSOs. II. The wavelength dependence Cristiani S., Trentini S., La Franca F., Andreani P. <Astron. Astrophys. 321, 123 (1997)> =1997A&A...321..123C (SIMBAD/NED BibCode)
ADC_Keywords: QSOs Keywords: quasars: general Description: The SA94 variability sample is made up of 149 optically selected quasars listed in this table, observed in a rectangular area of the sky within the limits 2h 43m 51.2s < RA < 2h 59m 14.3s, -2deg 03' 23.8" < DEC < 2deg 32' 11.0" (Epoch 1950.0), covering 17.66 sq.deg. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1 49 149 List of the QSOs in the SA94
See also: J/A+AS/143/357 : Tuorla Quasar Monitoring (Katajainen+ 2000) J/A+A/353/77 : Variability & polarization of luminous QSO (Teerikorpi+ 2000) J/MNRAS/260/202 : Quasar luminosity function (Hawkins+, 1993) J/MNRAS/268/305 : Variability of optically selected quasars (Hook+ 1994) Byte-by-byte Description of file: table1
Bytes Format Units Label Explanations
1- 2 I2 h RAh Right ascension (1950) 4- 5 I2 min RAm Right ascension (1950) 7- 11 F5.2 s RAs Right ascension (1950) 15 A1 --- DE- Declination sign 16 I1 deg DEd Declination (1950) 18- 19 I2 arcmin DEm Declination (1950) 21- 24 F4.1 arcsec DEs Declination (1950) 27- 31 F5.3 --- z Redshift 34- 38 F5.2 mag R' Magnitude R' 41- 45 F5.2 mag+2 IDX ? Variability index 48 A1 --- Type See Note (1)
Note (1): a: Cristiani S., La Franca F., Barbieri C., Clowes R.G., Iovino A., 1991MNRAS.250..531C b: Barbieri C., Cristiani S., 1986A&AS...63....1B c: Veron-Cetty M.P., Veron P., 1993, Catalogue VII/18 d: La Franca F., Cristiani S., Barbieri C., 1992AJ....103.1062L e: Cristiani S., Trentini S., La Franca F., Aretxaga I., Andreani P., Vio R., Gemmo A., (Paper I) 1996A&A...306..395C
Acknowledgements: Stefano Cristiani
(End) Stefano Cristiani [Universita` di Padova] 16-Oct-1996
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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