VII/166 Quasars and Active Galactic Nuclei (6th Ed.) (Veron+ 1993)
Quasars and Active Galactic Nuclei (6th Ed.)
Veron-Cetty M.P., Veron P.
=1993ESOSR..13....1V 1993ESOSR..13....1V (SIMBAD/NED Reference)
ADC_Keywords: QSOs ; Active gal. nuclei ; BL Lac objects ;
Description:
This catalogue is an update of the the previous versions which now
contains 7383 (+54) quasars, 171 BL Lac objects, and 1855 AGNs.
See also:
VII/188 : Veron-Cetty M.P., Veron P., 7th Edition (1996)
References:
(1) Veron-Cetty, M.-P. & Veron, P., 1984, ESO Scientific Report 1
(2) Veron-Cetty, M.-P. & Veron, P., 1985, ESO Scientific Report 4
(3) Veron-Cetty, M.-P. & Veron, P., 1987, ESO Scientific Report 5
(4) Veron-Cetty, M.-P. & Veron, P., 1989, ESO Scientific Report 7
(5) Veron-Cetty, M.-P. & Veron, P., 1991, ESO Scientific Report 10
(7) Veron-Cetty, M.-P. & Veron, P., 1996, ESO Scientific Report
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 7437 Quasars (defined as
brighter than absolute B magnitude -23)
table2.dat 100 171 BL Lac objects
table3.dat 100 1855 Active Galaxy Nuclei (defined as
fainter than absolute B magnitude -23)
table4.dat 86 52 Objects with a published redshift, but
later shown not to be a quasar.
refs.dat 81 1834 References
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Byte-per-byte Description of file: table1.dat table2.dat table3.dat
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Bytes Format Units Label Explanations
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1 A1 --- FLAG [*] A flag which is blank if the object has
been detected as a radio source and which
is '*' if not.
2- 18 A17 --- Name Most common name of the object.
20- 21 I2 h RAh Right Ascension 1950 (hours)
22 A1 --- n_RAh Note on the position:
'A' means low-accuracy position
'O' means optical position
'R' means radio position measured
both 'O' and 'R" positions measured with
an accuracy better than 1 arcsec
23- 24 I2 min RAm RA1950 (minutes)
26- 29 F4.1 s RAs RA1950 (seconds)
30 A1 --- DE- Declination 1950 (Sign)
31- 32 I2 deg DEd DE1950 (degrees)
34- 35 I2 arcmin DEm DE1950 (')
37- 38 I2 arcsec DEs DE1950 (")
39 A1 --- n_Vmag [/R] Note on the "V" magnitude
'/' indicates photographic magnitude
and colours when the colours are given.
'R' indicates a red magnitude
40- 44 F5.2 mag Vmag ? V magnitude, or photographic or red
magnitude depending on n_Vmag
46- 50 F5.2 mag B-V ? Colour index
51- 55 F5.2 mag U-B ? Colour index
56 A1 --- l_z [/>] Note on the redshift:
'/' means that the redshift was estimated
from a low dispersion slitless spectrum.
'>' indicates that z is a lower limit
57- 61 F5.3 --- z ? Value of the redshift
62- 67 F6.3 Jy F6cm ? 6cm flux (Jy)
68- 71 I4 --- r_F6cm [1,1486]?=0 Reference of 6cm Flux
72- 76 F5.2 Jy F11cm ? 11cm flux (Jy)
77- 80 I4 --- r_F11cm [1,1486]?=0 Reference of 11cm flux
84 A1 --- Xray [X] 'X' when the object was detected
in the X-ray range
85- 86 A2 --- Class [S123?HPBL ] Classification of the object:
S1: Seyfert 1 spectrum
S2: Seyfert 2 spectrum
S3: Seyfert 3 or liner
S?: possibly a Seyfert
H2: nuclear HII region
HP: high optical polarization (>3%)
BL: confirmed BL Lac object
87- 90 I4 --- FC [1,1486]? Reference of the Finding Chart
92- 95 I4 --- r_Vmag [1,1486]? Reference of the Photometry
97-100 I4 --- r_z [1,1486]? Reference of the redshift
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Byte-per-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1 A1 --- FLAG [*] Flag similar to table1
2- 12 A11 --- Name Most common name of the object.
13- 18 A6 --- 4C Its number in 4C radio source catalogue
20- 21 I2 h RAh Right Ascension 1950 (hours)
22 A1 --- n_RAh Note on the position, as in table1
23- 24 I2 min RAm RA1950 (minutes)
26- 29 F4.1 s RAs RA1950 (seconds)
30 A1 --- DE- Declination 1950 (Sign)
31- 32 I2 deg DEd DE1950 (degrees)
34- 35 I2 arcmin DEm DE1950 (')
37- 38 I2 arcsec DEs DE1950 (")
39 A1 --- n_Vmag [/R] Note on Vmag, as in table1
40- 44 F5.2 mag Vmag ? V magnitude, as in table1
46- 50 F5.2 mag B-V ? Colour index
51- 55 F5.2 mag U-B ? Colour index
56 A1 --- l_z [/>] Note on the redshift, as in table1
57- 61 F5.3 --- z ? Value of the redshift
62- 63 A2 --- Class0 Original classification, as in table1
65- 66 A2 --- Class1 [*G? ] New classification, with symbols
'G' = galaxy
'*' = Star
68- 71 I4 --- FC [1,1486]? Reference of the Finding Chart
73- 76 I4 --- r_Vmag [1,1486]? Reference of the Photometry
78- 81 I4 --- r_z [1,1486]? Reference of the redshift
83- 86 I4 --- r_Class1 [1,1486]? Reference of New classification
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Byte-per-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Ref Reference number
6- 81 A76 --- Text Text of the reference. A blank in column 6
indicates a continuation line
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Courtesy: Mira Veron
Historical Notes:
* 02-Feb-1994: First archived
* 17-Feb-1995: added '+' sign in positive declination, and zero-filled
the position components.
(End) Francois Ochsenbein [CDS], Mira Veron [OHP] 17-Feb-1995