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J/A+A/296/665          Survey of optically variables QSOs         (Veron+, 1995)

A survey for medium redshift (2.2<z<3.0) optically variable QSOs. VERON P., HAWKINS M.R.S. <Astron. Astrophys. 296, 665 (1995)> =1995A&A...296..665V (SIMBAD/NED Reference)
ADC_Keywords: QSOs; Photometry, UBV; Redshifts Keywords: quasars: general - surveys Description: We describe a survey for variable QSOs carried out for 15 years with the UK Schmidt telescope, using IIIaJ plates exposed behind a Schott GG395 filter. Objects brighter than B=21.0 on a reference plate and displaying a peak to peak amplitude of variability larger than B=0.35mag are selected. Plates in U, V, R and I were also obtained. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3 106 107 Medium redshift QSOs
Byte-by-byte Description of file: table3
Bytes Format Units Label Explanations
2 A1 --- n_Name An '*' indicates that the QSO either is weaker than B=21.0, has a redshift z > 3.0, or does not belong to the restricted 18 sq. deg. area 4- 14 A11 --- Name Name 15 A1 --- m_Name Multiplicity index on Name 18- 19 I2 h RAh Right ascension 1950.0 21- 22 I2 min RAm Right ascension 1950.0 24- 28 F5.2 s RAs Right ascension 1950.0 31 A1 --- DE- Declination sign 32- 33 I2 deg DEd Declination 1950.0 35- 36 I2 arcmin DEm Declination 1950.0 38- 41 F4.1 arcsec DEs Declination 1950.0 44- 48 F5.3 --- z Redshift 51- 55 F5.2 mag Bmag B magnitude 58- 62 F5.2 mag B-V []? B-V colour 65- 69 F5.2 mag U-B []? U-B colour 71- 75 F5.2 mag B-R B-R colour 78- 81 F4.2 mag dB Amplitude of variability 84- 88 F5.1 mag M(B) Absolute B magnitude computed for Ho=50Km/s/Mpc and qo=0 in the way described by Veron-Cetty and Veron(1993) 91- 92 I2 --- Notes Notes (1)
Note (1): 1 Cristiani et al. 1990b 2 Hawkins and Veron 1993 3 Morris et al. 1991 4 La Franca, F. 1992, private communication 5 Cristiani, S. 1992, private communication 6 AUTOFIB, AAT 1992 7 EFOSC,ESO 3.6m 1986 8 EFOSC,ESO 3.6m 1987 9 EFOSC,ESO 3.6m 1988 10 EFOSC,ESO 3.6m 1989 11 EFOSC,ESO 3.6m 1991 12 EFOSC,ESO 3.6m 1993
References: Cristiani et al. 1990b Hawkins and Veron 1993 Morris et al. 1991 Veron-Cetty M.P. and Veron P., 1993, ESO Scientific Report no. 13
(End) Patricia Bauer [CDS] 20-Sep-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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