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VII/158 Revised and Updated Catalog of Quasi-stellar Objects (Hewitt+ 1993)
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A Revised and Updated Catalog of Quasi-stellar Objects
Hewitt A., Burbidge G.
<Astrophys. J. Suppl. Ser. 87, 451 (1993)>
=1993ApJS...87..451H
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ADC_Keywords: QSOs; BL Lac objects
Description:
This is a catalog of all known quasi-stellar objects (QSO's) with
measured emission redshifts and BL Lac objects, complete to 1992
December 31. The catalog contains 7312 objects, nearly all QSOs
including about 90 BL Lac objects. The catalog and references
contain extensive information on names, positions, magnitudes,
color, emission-line redshifts, absorption, variability,
polarization, and X-ray, radio, and infrared data. A key in the
form of subsidiary tables enables the reader to relate the name of
a given object to its coordinate name which is used throughout the
catalog.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 176 22484 The catalogue
table1_1.dat 176 7315 Extract of table1 (one line per quasar)
refs.dat 133 2307 References in numerical order
refs.alp 133 2304 References in alphabetical order
table2.txt 30 2057 Index of object name to coordinate designation
table2a.txt 29 2065 Additions to table2
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See also:
VII/207 : Quasars and Active Galactic Nuclei (8th Ed.) (Veron+ 1998)
Byte-by-byte Description of file: table1.dat, table1_1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- CooDes Designation based on 1950 Coordinates (1)
10- 11 I2 h RAh Right Ascension 1950 (hours) (1)
13- 14 I2 min RAm Right Ascension 1950 (minutes) (1)
16- 20 F5.2 s RAs Right Ascension 1950 (seconds) (1)
22 A1 --- DE- Declination 1950 (sign) (1)
23- 24 I2 deg DEd Declination 1950 (degrees) (1)
26- 27 I2 arcmin DEm Declination 1950 (minutes) (1)
29- 32 F4.1 arcsec DEs Declination 1950 (seconds) (1)
34 A1 --- BLLac [B] "B" indicates a BL Lac object (1)
35- 38 A4 --- Sel [RXSVCO +] Selection technique(s) (2)
40- 51 A12 --- Id Other name
52- 53 I2 h RA2h Right Ascension 2000 (hours)
55- 56 I2 min RA2m Right Ascension 2000 (minutes)
58- 62 F5.2 s RA2s Right Ascension 2000 (seconds)
64 A1 - DE2- Declination 2000 (sign)
65- 66 I2 deg DE2d Declination 2000 (degrees)
68- 69 I2 arcmin DE2m Declination 2000 (minutes)
71- 74 F4.1 arcsec DE2s Declination 2000 (seconds)
77- 81 F5.2 mag V ? Apparent magnitude; often only mpg
82 A1 --- var [*] * indicates a variability
83- 87 F5.2 mag B-V ? B-V
89- 93 F5.2 mag U-B ? U-B
96-100 F5.3 --- z(em) ? Emission redshift
101 A1 --- u_z(em) [)] Uncertainty flag on z(em)
102 A1 --- n_z(em) [*+] Note on z(em) (3)
104-109 A6 --- Element Emission line on which the redshift is based
(element name)
110-113 I4 0.1nm Wl ? Wavelength of Emission element (Angstroem)
115-120 F6.4 --- z(abs) ? Absorption redshift
122-125 I4 --- r_Id ? Reference for identification
127-130 I4 --- r_z(em) ? Reference for emission redshift
131-131 A1 --- ref_b [b*] Addition to r_z(em) (5)
132-135 I4 --- r_var ? Reference for variability
137-140 I4 --- r_Sel ? Reference for Radio
142-145 I4 --- r_z(abs) ? Reference for absorption redshift
147-176 A30 --- Notes Notes (4)
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Note (1): The fields in bytes 1-34 are repeated on each line for objects
requiring more than one line; byte 35 is "+" for the second and
continuation records.
Note (2): Code for Selection technique(s):
C = UV-excess
O = Objective-prism and related techniques
R = radio
V = variability
X = X-ray
S = serendipity +
+ = continuation record as in Note (1)
Note (3):
* = indicates that absorption redshifts have been reported
+ = absorption has been seen but no redshift systems have been measured
Note (4): Two lines of notes of the published table have been merged.
The following abbreviations are used:
B(J)mag: defined in Koo & Kron 1982 (1982A&A...105..107K)
absr : 21cm absorption
BAL : broad absorption line QSO
BAL? : broad absorption lines questionable
BALvar : broad absorption lines variable
Bmag :
COem :
elp : emission-line profile
emlvar : emission-lines variable
euv : extreme ultra-violet spectra
ext : report of optical jet or fuzz
fc : finding chart
FeIIem : many FeII lines
hfe : high-frequency excess
hpq : high polarization quasar
imag : imaging
ir : infrared
ir/r : infrared/radio
IRAS : object identified in IRAS catalogue
irpol : infrared polarization
irvar : infrared variable
Jmag : defined in Koo & Kron 1982 (1982A&A...105..107K)
m(or) : passband on direct plates used in IK Schmidt Survey
mf : multifrequency observation
mm : millimeter-wave observations
mmvar : millimeter-wave variable
neml : narrow emission lines
noabs :
OVV : optical violent variable
phot : photometry
pol : optical polarization
poljet : polarized jet
pos : position
QSO? :
r/ir :
rjet : radio jet
rmag :
rmap :
rnd : not detected as radio source
rpol : radio polarization
rvar : radio variable
si : speckle interferometry
sp : spectra
spext : spectroscopy of the extension
spvar : spectral variability
sy1 :
syi :
ubv : colors
ubvri : extended photometry
uv : ultraviolet spectra
uv/ir : spectrophotometry in the ultraviolet and near infrared
uvabs : ultraviolet absorption
uvem : ultraviolet emission
uvnd : not detected in the ultraviolet
uvvar : ultraviolet variable
var? :
varnd : variability not detected
vlbi : very long baseline interferometry
x : X-ray
xnd : not detected as X-ray source
xvar : X-ray variable
Note (5): the '*' indicates a quasar in LBQS (Large Bright Quasar Survey)
in preparation
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Statistics on table1:
7315 objects
average z (for objects with z > 0) = 1.56
290 objects with absorption seen but not measured,
415 with absorption measured
discovered by also detected in total
objective prism: 4145 0 4145
X-ray: 168 289 457
color/UV-excess: 1341 8 1349
radio: 1234 158 1392
Byte-by-byte Description of file: refs.dat, refs.alp
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Bytes Format Units Label Explanations
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1- 4 I4 --- Ref Reference number
5 A1 --- --- [.] Dot
7-133 A127 --- Text Reference text
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Remarks and Modifications:
The files have been copied from the cass157.ucsd.edu (132.239.146.157)
anonymous account on August 31, 1993. A standardization of the files
and their description was performed at CDS to allow automatic
conversions to FITS tables.
Most of this document was prepared at the CDS. The description, ADC
Keywords and Bibcode were added and portions of the format table were
modified by the undersigned. We thank the CDS for forwarding the
catalog and accompanying document.
* In December 1999, the "LBQS" note in r_z(em) was replaced by an
asterisk in the next column ref_b
References:
Hewitt A., Burbidge G. 1993, Astrophys. J. Suppl. Ser. 87, 451.
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(End) Nancy G. Roman (mod. J.A. Watko) [SSDOO/ADC] 30-Dec-1996