VII/283 The Million Quasars (Milliquas) catalog (6.3) (Flesch, 2019)
The Million Quasars (MILLIQUAS) catalogue, version 6.3.
Flesch E.W.
<Pub. Astron. Soc. Australia 32, 10 (2015)>
=2015PASA...32...10F 2015PASA...32...10F
=2019yCat.7283....0F 2019yCat.7283....0F
ADC_Keywords: QSOs ; Active gal. nuclei ; Redshifts ; Magnitudes
Keywords: catalogs - quasars: general
Description:
This is a compendium of 623,004 type-I QSOs and AGN, largely complete
from the literature to 15 June 2019 including SDSS-DR15 and LAMOST QSO
DR5. Also included are approx 1.32M high-confidence (80%+ likelihood)
quasar candidates from the NBCKDE, NBCKDE-v3, AllWISE, XDQSO & Peters
photometric quasar catalogs (citations in Note 7 below) and from
all-sky radio/X-ray associated objects which are calculated here.
Type-II and Bl Lac objects are also included, plus galaxies with
double radio lobes, bringing the total count to 1,986,800. Gaia-DR2
astrometry is used where available, amounting to ∼63% of all objects.
Changes from version 6.2 are:
(1) Quasars added from publications to 15 June 2019, including 4LAC.
(2) 3581 galaxies with double radio lobes are added as type=G because the lobes
show that they have active nuclei of some kind, even if well hidden.
(3) Positional fixes of a few arcsec were done for ∼50 legacy objects.
(4) Blazar candidates with neither redshift nor radio/X-ray association, about
30 objects, are dropped. Most were stated low confidence in legacy papers.
Low-confidence/quality or questionable objects (so deemed by their
researchers) are not included in Milliquas. Additional quality cuts
can be applied as detailed in Flesch 2015,PASA,32,10. The aim here is
to present one unique reliable object per each data row.
The catalog format is simple, each object is shown as one line bearing
the J2000 coordinates, its original name, object class, red and blue
optical magnitudes, PSF class, redshift, the citations for the name
and redshift, plus up to four radio/X-ray identifiers where
applicable.
This catalog can be cited as Milliquas v6.3 2019 update, Flesch E.,
2015PASA...32...10F 2015PASA...32...10F was the published version of this catalog as at
2015. Questions/comments/praise/complaints may be directed to me at
eric(at)flesch.org.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 192 1986800 The Milliquas catalogue, V6.3 (16 June 2019)
refs.dat 162 2171 References (for numerical references)
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See also:
VII/273 : The Half Million Quasars (HMQ) catalogue (Flesch, 2015)
VII/277 : The Million Quasars (Milliquas) catalogue, V4.8 (Flesch, 2016)
VII/280 : The Million Quasars (Milliquas) catalog (V5.2) (Flesch, 2017)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 11 F11.7 deg RAdeg Right ascension J2000 (degrees)(1)
13- 23 F11.7 deg DEdeg Declination J2000 (degrees)(1)
26- 50 A25 --- Name ID from the literature, or J2000 (2)
52- 55 A4 --- Cl+Ass [ABKQqNGL 2RX] Classification of object,
and associations (3)
57- 61 F5.2 mag Rmag ?=0 Red optical magnitude (4)
63- 67 F5.2 mag Bmag ?=0 Blue optical magnitude (4)
69- 71 A3 --- Comment Comment on optical object (5)
73 A1 --- R Red optical PSF class (6)
75 A1 --- B Blue optical PSF class (6)
77- 82 F6.3 --- z ? Redshift from the literature or estimated (7)
84- 89 A6 --- rName Citation for name (8)
91- 96 A6 --- rz Citation for redshift (8)
98-100 I3 pct Qpct ? Probability that this object is a QSO (9)
102-123 A22 --- XName X-ray ID, if any (10)
125-146 A22 --- RName Radio ID, if any (10)
148-169 A22 --- Lobe1 Radio lobe ID or extra R/X ID, if any (10)
171-192 A22 --- Lobe2 Radio lobe ID or extra X-ray ID, if any (10)
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Note (1): These are to 7 decimals which suits Gaia-DR2 astrometry.
Note (2): Nameless radio/X-ray associated objects here display the J2000
position in HHMMSS.SS+DDMMSS.S for the convenience of the user. If needing
a name for it, just preface the J2000 with "MQ", e.g., MQ J000001.5-251706.
Note (3): Legend of class/type:
Q = QSO, type-I broad-line core-dominated, 595972 of these.
A = AGN, type-I Seyferts/host-dominated, 27032 of these.
B = BL Lac object, 1724 of these.
q = photometric quasar candidate from SDSS or WISE, 1266417 of these.
∼1K are SDSS/LAMOST pipeline QSOs w/o subclass, with R/X associations.
L = lensed quasar extra image, only 61 of these in this optical data.
K = NLQSO, type-II narrow-line core-dominated, 5424 of these.
N = NLAGN, type-II Seyferts/host-dominated, 30625 of these. Includes an
unknown number of legacy NELGs/ELGs/LINERs for completeness.
G = galaxy with double radio lobes (so calculated), 3581 of these.
R = radio association displayed.
X = X-ray association displayed.
2 = double radio lobes displayed (declared by data-driven algorithm).
Note (4): Optical data is from the APM (http://www.ast.cam.ac.uk/~mike/apmcat),
USNO-A & USNO-B
(https://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/usno-b1.0),
and the SDSS (http://sdss.org).
APM/USNO-A magnitudes have been recalibrated from the original values as
documented in QORG (2004,A&A,427,387), so such USNO-A magnitudes are often
used in preference to USNO-B. APM galaxies < mag 17 are usually shown
too bright due to PSF modelling. Integer magnitudes (e.g., 22.00) are
estimates if both bands are integer or one band empty. Note: many SDSS
magnitudes are "extinction-corrected" ∼0.3 mag brighter than observed.
Note (5): Legend as follows:
p = optical magnitudes are POSS-I O (violet 4050A) and E (red 6400A).
These are preferred because O is well-offset from E, and those plates
were always taken on the same night, thus the red-blue color is
correct even for variable objects.
j = optical magnitudes are SERC J (Bj 4850A) and R (red 6400A) from the
POSS-II or UKST surveys. Red-blue color is less reliable because the
red & blue plates were taken in different epochs, i.e., years apart.
b = blue magnitude is Vega 4400A (Johnson), red is 6400A (Cousins).
g = blue magnitude is SDSS green 4900A, red is SDSS r 6200A.
u = blue magnitude is SDSS ultraviolet 3850A.
v = red magnitude is visual, i.e., white, 5500A midpoint.
i = red magnitude is infrared 7500A.
z = red magnitude is infrared z 8600A.
r = red magnitude is r 6200A.
(blank) = red alone is 6400A (Cousins), else they are r 6200A & g 4900A.
G = Gaia-DR2 astrometry shown, precessed to J2000 by CDS. If 'G' is alone
then the magnitudes are Gaia RP & BP, or Gaia G if red band only.
+ = variability nominally detected in both red/blue over multi-epoch data.
m = proper motion nominally detected, from USNO-B.
a = object is host-dominated with faint nuclear activity, such as an SDSS
pipeline galaxy with an AGN subclass or AGN-classed elsewhere, see its
citation. Milliquas class is 'A' if BROADLINE, else 'N'. (see note 2)
Note (6): The APM, USNO-B, and SDSS provide PSF class, albeit using different
criteria. These are shown here as follows:
- = point source / stellar PSF (APM notation: -1, here truncated)
1 = fuzzy / galaxy shape (APM notation: 1 and some 2)
n = no PSF available, whether borderline or too faint to tell, etc.
x = not seen in this band (fainter than plate depth, or confused, etc.)
Note (7): Spectroscopic/grism redshifts are required for objects classified as
Q/A/K/N/L; photometric redshifts for objects classified as 'q' are rounded
here to 0.1 z, except if pipeline redshifts are available from SDSS/LAMOST.
The XDQSO catalog does not provide photometric redshifts, so those are
provided either by NBCKDE or by this catalog using the four-color method
detailed in Appendix 2 of my HMQ paper (2015PASA...32...10F 2015PASA...32...10F,PASA,32,10).
AllWISE photometric redshifts are similarly calculated using the four colors
B-R, R-W1, W1-W2 and W2-W3, and are displayed where calculated as 50%+
(usually 80%+) likely to be true within 0.5z of the displayed redshift value.
Note (8): Legend (with counts of name and redshift) and references:
(for numerical reference code, see refs.dat file):
2dF (327,233) : 2dF galaxy survey, Colless M. et al.,
2001MNRAS.328.1039C 2001MNRAS.328.1039C, Cat. VII/250
2MRS (10,34) : 2MASS, Huchra J.P. et al.,
http://tdc-www.harvard.edu/2mrs
2QZ (27520,24161) : Croom S.M. et al., 2004MNRAS.349.1397C 2004MNRAS.349.1397C, Cat. VII/241
2SLAQ (10365,8709) : Croom S.M. et al., 2009, Cat. J/MNRAS/392/19
3FGL (16,16) : Fermi cleanups, Paiano S. et al., 2017ApJ...851..135P 2017ApJ...851..135P
3FGL2 (22,22) : Fermi cleanups II, Paiano S. et al.,
2019ApJ...871..162P 2019ApJ...871..162P
3XLSS (25,25) : The XXL Survey, Pierre M. et al., 2016A&A...592A...1P 2016A&A...592A...1P,
Cat, IX/49
4LAC (366,199) : Fermi AGN v4 + LL, Fermi-LAT collab.,
2019,arXiv:1905.10771
6dF (300,277) : 6dF galaxy survey, Jones D.H. et al.,
2009MNRAS.399..683J 2009MNRAS.399..683J, Cat. VII/259
AAOz (1491,1498) : AAOmega XXL-South: Lidman C. et al.,
2016PASA...33....1L 2016PASA...33....1L
AGES (2046,2046) : AGES survey, Kochanek C.S. et al.,
2012, Cat. J/ApJS/200/8
AGNELL (2,3) : DES lenses, Agnello A. et al., 2015MNRAS.454.1260A 2015MNRAS.454.1260A
AGNELA (4,4) : SDSS J1433+6007 4-lens, Agnello A. et al.,
2018MNRAS.474.3391A 2018MNRAS.474.3391A
AGNEL2 (13,13) : VST-Gaia QSO pairs, Agnello A. et al.,
2018MNRAS.475.2086A 2018MNRAS.475.2086A
AKARI (1,1) : overlooked luminous quasar, Aoki K. et al.,
2011PASJ...63S.457A 2011PASJ...63S.457A
ALMA (4,4) : ALMA hi-z, Roberto Decarli R. et al.,
2018ApJ...854...97D 2018ApJ...854...97D
ANGUIT (1,1) : COSMOS lens, Anguita T. et al., 2009A&A...507...35A 2009A&A...507...35A
ATel (5,5) : Astronomers Telegraph posts,
http://www.astronomerstelegram.org
ATLAS (229,269) : Mao M.Y. et al., 2012, Cat. J/MNRAS/426/3334
BAHM (24,24) : dust-reddened QSOs, Banerji M. et al.,
2015MNRAS.447.3368B 2015MNRAS.447.3368B
BASS (16,114) : Swift-BAT AGN, Koss M. et al., 2017, Cat. J/ApJ/850/74
BERGHE (1,1) : Pan-STARRS lens, Berghea C.T. et al.,
2017ApJ...844...90B 2017ApJ...844...90B
BGGFC (4,4) : COSMOS hi-z, Boutsia K. et al., 2018ApJ...869...20B 2018ApJ...869...20B
BQLS (17,17) : BOSS QSO lenses & pairs, More A. et al.,
2016MNRAS.456.1595M 2016MNRAS.456.1595M
BZCAT (5,4) : Blazars catalog, Massaro E. et al.,
http://www.asdc.asi.it/bzcat
C-COSM (180,180) : Chandra COSMOS IDs, Marchesi S. et al.,
2016ApJ...817...34M 2016ApJ...817...34M
ChaMP (191,187) : Trichas M. et al., 2012ApJS..200...17T 2012ApJS..200...17T
DABAST (1,1) : Diaz-Santos T. et al., 2018Sci...362.1034D 2018Sci...362.1034D
Dart (26,25) : Heavily Obscured QSOs, Hviding R. et al.,
2018MNRAS.474.1955H 2018MNRAS.474.1955H
DDC2 (14,14) : variable AGN, De Cicco D. et al., 2019,
arXiv:1905.10374
DEEP (143,139) : DEEP2, Newman J. et al., 2013ApJS..208....5N 2013ApJS..208....5N;
deep.ps.uci.edu/DR4
DES (1,1) : Dark Energy hi-z, Reed S.L. et al.,
2015MNRAS.454.3952R 2015MNRAS.454.3952R
DESQQ (26,26) : STRIDES lenses, Anguita T. et al.,
2018MNRAS.480.5017A 2018MNRAS.480.5017A
DESQQ2 (12,12) : STRIDES lenses, Treu T. et al., 2018MNRAS.481.1041T 2018MNRAS.481.1041T
DPeake (683,656) : Double-peaked NELGs, Ge J.-Q. et al.,
2012, Cat. J/ApJS/201/31
DR12 (18,23) : Alam S. et al., 2015ApJS..219...12A 2015ApJS..219...12A,
http://sdss.org/dr12
DR12Q (129,153) : SDSS-DR12Q, Paris I. et al., 2017A&A...597A..79P 2017A&A...597A..79P,
Cat. VII/279
DR14 (42582,45125) : Abolfathi B. et al., 2018ApJS..235...42A 2018ApJS..235...42A pipeline,
data at
https://data.sdss.org/sas/dr14/sdss/spectro/redux
DR14Q (513025,525752) : SDSS-DR14Q, Paris I. et al., 2018A&A...613A..51P 2018A&A...613A..51P
data at http://data.sdss.org/sas/dr14/eboss/qso/DR14Q
DR7 (8,145) : SDSS DR7, Abazajian K.N. et al., 2009ApJS..182..543A 2009ApJS..182..543A,
files at
http://classic.sdss.org/dr7/products/spectra/getspectra.html
DR7Q (2089,329) : SDSS Quasar DR7, Schneider D. et al.,
2010AJ....139.2360S 2010AJ....139.2360S, Cat. VII/26 data
http://classic.sdss.org/dr7/products/value_added/qsocat_dr7.html
DUHIZ (2,2) : DECaLS-UKIRT hi-z, Wang F. et al., 2017ApJ...839...27W 2017ApJ...839...27W
Dusty (11,11) : Dusty Starbursts, Rodighiero G. et al.,
2019ApJ...877...38H 2019ApJ...877...38H
DUz6 (18,18) : DESI & UKIRT hi-z, Wang F. et al.,
2018,arXiv:1810.11926
eHAQ (82,81) : Extended High AV, Krogager J.-K., 2016ApJ...832...49K 2016ApJ...832...49K
ELQ-PS (216,215) : ELQS on PS1, Schindler J.-T. et al., 2019,
arXiv:1905.04069
ELQS-N (38,38) : ELQS in NGC, Schindler J.-T. et al.,
2018ApJ...863..144S 2018ApJ...863..144S
ELQS-S (126,126) : ELQS in SGC, Schindler J.-T. et al.,
2019ApJ...871..258S 2019ApJ...871..258S
FISCBA (1,1) : HST lens, Fischer/Schade/Barrientos
1998ApJ...503L.127F 1998ApJ...503L.127F
GAIA2 (263,263) : Gaia DR2, Gaia Collaboration et al.,
2018A&A...616A...1G 2018A&A...616A...1G, Cat. I/345 data as presented by
SIMBAD, http://simbad.u-strasbg.fr/simbad
GEIER (1,1) : Geier S.J. et al., 2019,arXiv:1904.01686
GLDD (1,1) : Lensed QSO data-driven, Ostrovski F. et al.,
2017MNRAS.465.4325O 2017MNRAS.465.4325O
GLIKMA (29,29) : red WISE QSOs, Glikman E. et al., 2018ApJ...861...37G 2018ApJ...861...37G
GLRED (1,1) : lensed red QSO, Glikman E. et al., 2018,
arXiv:1807.05434
GUTI (1,1) : not a ULX, Gutierrez C.M., 2013A&A...549A..81G 2013A&A...549A..81G
H-DOGs (16,16) : Herschel DOGs, Riguccini L.A. et al.,
2019A&A...625A...9D 2019A&A...625A...9D
HAQ (2,2) : High AV serendipitous, Heintz K.E. et al.,
2016AJ....152...13H 2016AJ....152...13H
HAQC (1,1) : High AV in COSMOS, Heintz K.E. et al.,
2016A&A...595A..13H 2016A&A...595A..13H
HEINTZ (1,1) : dusty absorbed QSO, Heintz K.E. et al.,
2018A&A...615A..43H 2018A&A...615A..43H
HIZ7.5 (1,1) : QSO z=7.5, Banados E. et al., 2018Natur.553..473B 2018Natur.553..473B
HSTvar (42,42) : variable AGN, Pouliasis E. et al., 2019,
arXiv:1905.11995
IGMCP (10,10) : IGM close pairs, Rorai A. et al., 2017Sci...356..418R 2017Sci...356..418R
IKEDA (1,1) : Ikeda H. et al., 2017ApJ...846...57I 2017ApJ...846...57I
IMS (1,1) : IR medium-deep hi-z, Kim Y. et al.,
2015ApJ...813...35H 2015ApJ...813...35H
IMS2 (10,11) : IR medium-deep hi-z, Kim Y. et al.,
2019ApJ...870...86K 2019ApJ...870...86K
KOVACS (1,1) : bright QSO behind Milky Way, Kovacs T. et al.,
2019, RNAAS, 3, 3
LAMDR4 (190,2249) : LAMOST-DR4, pipeline, http://dr4.lamost.org
LAMQ1 (687,628) : LAMOST QUASAR DR1, Ai Y.L. et al.,
2016, Cat. J/AJ/151/24
LAMQ3 (6773,6663) : LAMOST QUASAR DR3/DR2, Dong X.Y. et al.,
2018, Cat. J/AJ/155/189
LAMQ5 (7998,7997) : LAMOST QUASAR DR5/DR4, Yao S. et al.,
2019ApJS..240....6Y 2019ApJS..240....6Y
LEMON (40,40) : 24 Gaia lenses, Lemon C. et al.,
2018MNRAS.479.5060L 2018MNRAS.479.5060L
LEMON2 (30,30) : 22 Gaia lenses, Lemon/Auger/McMahon,
2019MNRAS.483.4242L 2019MNRAS.483.4242L
LGGS (11,11) : M31/M33 area, Massey/Neugent/Levesque, 2019,
arXiv:1904.07898
LIDMAN (1,1) : SN Host Galaxy redshifts, Lidman C. et al.,
2013PASA...30....1L 2013PASA...30....1L
LIN (1,1) : DES lens, Lin H. et al., 2017ApJ...838...15L 2017ApJ...838...15L
LIRAS (169,154) : LoCuSS IR AGNs, Xu, L. et al.,
2015, Cat. J/ApJS/219/18
LOZAGN (32,11009) : Low-redshift AGN, Liu H.-Y. et al., 2019,
arXiv:1906.05597
LSSA (2,2) : 2 lenses, Lucey/Schechter/Smith/Anguita,
2018MNRAS.476..927L 2018MNRAS.476..927L
LUMIz5 (66,66) : Luminous hi-z, Yang J. et al., 2018,
arXiv:1810.11927
M31UV (1,1) : UV flare QSO on M31, Meusinger H. et al.,
2010A&A...512A...1M 2010A&A...512A...1M
MALS-N (70,70) : MEERKAT QSOs, Krogager J.-K. et al.,
2018ApJS..235...10K 2018ApJS..235...10K
MFJC (52,51) : McGreer I.D., Fan X., Jiang L. & Cai Z.,
2018, Cat. J/AJ/155/131
MORX (49324,0) : Million Radio/X-ray Associations, Flesch E.,
2016PASA...33...52F 2016PASA...33...52F, Cat. V/148
MQ (6639,622652) : MILLIQUAS, original data in this catalog,
Flesch E., 2019
NBCKDE (40821,40930) : Richards G.T. et al., 2009, Cat. J/ApJS/180/67
NBCKv3 (529572,563852): NBCKDE v3, Richards G.T. et al.,
2015, Cat. J/ApJS/219/39
NED (3,3) : NASA/IPAC Extragalactic Database,
https://ned.ipac.caltech.edu
OGLE2 (2,2) : OGLE quasars, Kozlowski S. et al., 2018,
arXiv:1810.08622
OSTROV (1,1) : lensed, Ostrovski et al., 2019, in preparation
OVRLAP (5,5) : SDSS overlap hi-z QSOs, Jiang L. et al.,
2015AJ....149..188J 2015AJ....149..188J
OzDES (664,638) : Dark Energy SN QSOs, Tie S.S. et al.,
2017AJ....153..107T 2017AJ....153..107T
P352-1 (1,1) : P352-15, Banados E. et al., 2018ApJ...861L..14B 2018ApJ...861L..14B
PETERS (12896,12914) : photo special, Peters C.M. et al.,
2015ApJ...811...95P 2015ApJ...811...95P
PGC (13623,19) : Principal Galaxy Catalog, Paturel G. et al.,
2003A&A...412...45P 2003A&A...412...45P, Cat. VII/237
PHILLI (1,0) : MERLIN lens, Phillips P.M. et al.,
2000MNRAS.319L...7P 2000MNRAS.319L...7P
PS1 (63,63) : PAN-STARRS1 hi-z, Banados E. et al.,
2016, Cat. J/ApJS/227/11
PS1hiz (1,1) : Tang, Ji-Jia et al., 2017MNRAS.466.4568T 2017MNRAS.466.4568T
PS1MAZ (6,6) : Mazzucchelli C. et al., 2017ApJ...849...91M 2017ApJ...849...91M
PSO (3,3) : PAN-STARRS z-dropouts, Venemans B.P. et al.,
2015ApJ...801L..11V 2015ApJ...801L..11V
QLSV (20,19) : QUEST-La Silla, Sanchez-Saez P. et al.,
2019ApJS..242...10S 2019ApJS..242...10S
QPQ10 (70,70) : Quasar pair DB, Findlay J.R. et al.,
2018ApJS..236...44F 2018ApJS..236...44F
RBS (3,3) : Laporte N. et al., 2017ApJ...851...40L 2017ApJ...851...40L
Redden (25,25) : Reddened QSOs, Temple M.J. et al., 2019MNRAS.487.2594R 2019MNRAS.487.2594R
REQ4 (6,6) : Reionization-Era quasars, Yang J. et al.,
2019AJ....157..236Y 2019AJ....157..236Y
RLQ (4,3) : Tuccillo D./Gonzalez-Serrano J.I./Benn C.R.,
2015, Cat. J/MNRAS/449/2818
RSG (1,1) : Dorn-Wallenstein T.Z. & Levesque E.,
2017, IAUS, 329, 376
S82X (72,77) : Stripe 82 AGN, LaMassa S.M. et al.,
2019ApJ...876...50L 2019ApJ...876...50L
S82XRQ (8,8) : Red Quasars, LaMassa S.M. et al., 2017ApJ...847..100L 2017ApJ...847..100L
SCULPT (2,3) : Sculptor X-ray, Arnason R. M. et al.,
2019MNRAS.485.2259A 2019MNRAS.485.2259A
SDLENS (3,3) : SDSS Lenses, Williams P.R. et al.,
2018MNRAS.477L..70W 2018MNRAS.477L..70W
SDSSHI (6,6) : SDSS hi-z, Jiang L. et al., 2016ApJ...833..222J 2016ApJ...833..222J
SFM201 (1,1) : Schulze S. et al., 2012A&A...546A..20S 2012A&A...546A..20S
SHELLQ (33,33) : Subaru hi-z, Matsuoka Y. et al., 2018PASJ...70S..35M 2018PASJ...70S..35M
SHELQS (30,30) : SHELLQS hi-z, Matsuoka Y. et al., 2018ApJS..237....5M 2018ApJS..237....5M
SHELz7 (1,1) : SHELLQS z=7, Matsuoka Y. et al., 2019ApJ...872L...2M 2019ApJ...872L...2M
SMSSQ (2,2) : SkyMapper hi-z, Zefeng Li Z. et al., 2018,
arXiv:1805.03429
SPIN18 (1,1) : KiDS-SQuaD lens, Spiniello C. et al.,
2018MNRAS.480.1163S 2018MNRAS.480.1163S
SPIN19 (2,2) : 2 lensed quasars, Spiniello C. et al.,
2019MNRAS.485.5086S 2019MNRAS.485.5086S
SQLS (60,52) : SDSS DR7 QSO Lens Search, Inada N. et al.,
Cat. J/AJ/143/119
SQUAD (13,13) : UVES DB DR1, Murphy M.T. et al., 2019MNRAS.482.3458M 2019MNRAS.482.3458M
SSLENS (3,3) : South sky lenses, Spiniello C. et al.,
2019MNRAS.483.3888S 2019MNRAS.483.3888S
SUV (21,21) : SDSS-ULAS/VHS QSOs, Yang J. et al.,
2017AJ....153..184Y 2017AJ....153..184Y
SXDF (39,39) : Subaru-XMMDF redshifts, Simpson C. et al.,
2012, Cat. J/MNRAS/421/3060
SXDS (308,307) : Subaru-XMMDF spectra, Akiyama M. et al.,
2015PASJ...67...82A 2015PASJ...67...82A
ULTRA (1,1) : Ultraluminous hi-z, Wu, X.-B. et al.,
2015Natur.518..512W 2015Natur.518..512W
UVQS (435,503) : UV QSOs, Monroe T.R. et al., 2016, Cat. J/AJ/152/25
VAHIZ (2,2) : VST ATLAS hi-z, Carnall A.C. et al.,
2015MNRAS.451L..16C 2015MNRAS.451L..16C
VAHIZ2 (1,1) : bright z>6 QSOs, Chehade B. et al.,
2018MNRAS.478.1649C 2018MNRAS.478.1649C
VAHIZ3 (1,1) : VST-ATLAS lens, Schechter P.L. et al.,
2018, RNAAS, 2b, 21
VAQL (11,11) : VST-ATLAS quasar systems,Schechter P.L. et al.,
2017AJ....153..219S 2017AJ....153..219S
VDES (8,8) : VISTA Dark Energy QSOs, Reed S.L. et al.,
2017MNRAS.468.4702R 2017MNRAS.468.4702R
VDES2 (2,2) : more VHS-DES quasars, Reed S.L. et al.,
2019, arXiv:1901.07456
VIKING (4,4) : VIKING IR, Venemans, G.A. et al., 2015MNRAS.453.2259V 2015MNRAS.453.2259V
VIPERS (241,284) : VIPERS PDR-2, Scodeggio M. et al., 2018A&A...609A..84S 2018A&A...609A..84S
VMC (34,34) : Magellanic IR QSOs, Ivanov V.D. et al.,
2016A&A...588A..93I 2016A&A...588A..93I
WARSAW (3,3) : OGLE lens, Kostrzewa-Rutkowska Z. et al.,
2018MNRAS.476..663K 2018MNRAS.476..663K
WERTZ (1,1) : Gaia GraL lens, Wertz O. et al.,
2018, arXiv:1810.02624
WGD (2,2) : DES/Gaia lenses; Agnello A. et al.,
2018MNRAS.479.4345A 2018MNRAS.479.4345A
WISEA (447228,0) : AllWISE QSO candidates, Secrest N. et al.,
2015, Cat. J/ApJS/221/12
WISEHI (72,70) : Hi-z QSOs from WISE, Wang F. et al.,
2016, Cat. J/ApJ/819/24
WOLF1 (1,1) : most ultraluminous QSO, Wolf C. et al.,
2018PASA...35...24W 2018PASA...35...24W
XDQSO (235761,0) : SDSS-XDQSO, Bovy J. et al., 2011ApJ...729..141B 2011ApJ...729..141B
XLSS (306,118) : Stalin C.S. et al., 2010, Cat. J/MNRAS/401/294
XMM2 (12,12) : 2XMM-Newton cross-search, Combi J.A. et al.,
2011Ap&SS.331...53C 2011Ap&SS.331...53C, Cat. V/138
XMMSMC (6,6) : SMC quasars, Maitral C. et al., 2019A&A...622A..29M 2019A&A...622A..29M
XMSS (182,148) : Barcons X. et al., 2007, Cat. J/A+A/476/1191
XWAS (490,449) : Esquej P. et al., 2013, Cat. J/A+A/557/A123
YQLF (25,25) : deep CFHT QSOs, Yang J. et al.,
2018, Cat. J/AJ/155/110
z6.51 (1,1) : lensed quasar z=6.51, Fan X. et al.,
2019ApJ...870L..11F 2019ApJ...870L..11F
z7.02 (1,1) : lensed quasar z=7.02, Wang F. et al.,
2018ApJ...869L...9W 2018ApJ...869L...9W
4-digit numeric citations are indexed in the HMQ (2015,PASA,32,10)
references list. The citation for the classification (e.g., that the
object is a quasar) can be from either the name or redshift citation.
Note (9): For a QSO candidate (type starting with q/R/X/2), this shows the
percent chance that it is a QSO, based on photometric and/or radio/X-ray
association analysis. Included candidates are those of 80%+ likelihood
of being true quasars. For a known QSO (type=Q/A), Bl Lac type (type=B),
type-II (type=K/N) or active galaxy (type=G), this shows the percent
chance that the shown radio/X-ray detection(s) is truly associated to it.
Candidates (objects without spectroscopic confirmation) originate from
three types of sources:
(1) Photometric quasars from the SDSS-based NBCKDE/NBCKDE-v3/XDQSO/Peters
quasar candidate catalogs. Those catalogs give pQSOs (calculated QSO
probabilities) for their objects which however are not reported here;
instead, I have calibrated those pQSOs against SDSS-DR12Q classified
objects to produce these QSO likelihoods -- see appendix 1 of my HMQ
paper (Flesch 2015PASA...32...10F 2015PASA...32...10F) for details of the calibration method.
(2) WISE-sourced candidates (from Secrest et al. 2015ApJS..221...12S 2015ApJS..221...12S,
Cat. J/ApJS/221/12) are presented by their authors with a bulk pQSO as
an average figure, with no individual pQSOs given. These I have
generated by matching WISE candidates to optical objects (within a two
arcsecond radius) and then binning them into four-color (colors B-R,
R-W1, W1-W2, and W2-W3) subsets which are then calibrated against
SDSS-DR12Q classified objects to yield the pQSO for each four-color
subset.
(3) 56182 radio/X-ray associated optical objects are presented only here in
Milliquas, with pQSO calculated as described in the QORG paper (Flesch
& Hardcastle, 2004A&A...427..387F 2004A&A...427..387F, Cat. J/A+A/427/387), with no redshift
displayed. However, an additional 349 such objects show pipeline
redshifts from SDSS-DR14.
71543 photometric quasars are also radio/X-ray associated, and the
displayed probability figure combines the calibrated photometric QSO
likelihood P1 and the radio/X-ray derived QSO likelihood P2 as
P = 1/(1+((1-P1)*(1-P2))/(P1*P2)). Over all objects, using the probability
as expected yield, the 1945385 type-I Milliquas objects will yield 1890994
actual type-I quasars/AGN.
Note (10): Four columns of Radio/X-ray detections are presented:
* 1st column: best X-ray detection (i.e. highest probability association).
* 2nd column: best core Radio detection.
* 3rd column: a radio lobe if the description (see note 2) shows a "2",
otherwise this is an additional radio or X-ray detection.
* 4th column: a radio lobe if the description (see note 2) shows a "2",
otherwise this is an additional X-ray detection.
Legend of Radio/X-ray detection prefixes and catalog home pages:
FIRST: VLA FIRST survey, 13Jun05 version, http://sundog.stsci.edu
NVSS: NRAO VLA sky survey, http://www.cv.nrao.edu/nvss
SUMSS: Sydney U. Molonglo, http://www.physics.usyd.edu.au/sifa/Main/SUMSS
MGPS: Molonglo galactic plane survey, same attribution as SUMSS
ROSAT catalogs home page: www.mpe.mpg.de/xray/wave/rosat/catalogue , for:
- 1RXH: ROSAT HRI (high resolution imager)
- 2RXP/2RXF: ROSAT PSPC (position sensitive proportional counter)
- 1RXS: ROSAT RASS (all-sky survey, both bright & faint)
2RXS: 2nd RASS source catalog, Boller Th. et al., 2016,A&A,588,103
1WGA: White, Giommi & Angelini, wgacat.gsfc.nasa.gov/wgacat/wgacat.html
CXO: Chandra Source Catalog v1.1, http://cxc.cfa.harvard.edu/csc
CXOG: Chandra ACIS source catalog, Wang S. et al., 2016,ApJS,224,40
CXOX: XAssist Chandra source list, http://xassist.pha.jhu.edu/
2XMM/2XMMi: XMM-Newton DR3, http://xmm.esac.esa.int/xsa/versions.shtml
3XMM: XMM-Newton DR8, http://www.cosmos.esa.int/web/xmm-newton/xsa
XMMSL: XMM-Newton Slew Survey Release 2.0, same attribution as 3XMM
XMMX: XAssist XMM-Newton source list, http://xassist.pha.jhu.edu/
1SXPS: Swift X-ray Point Source catalog, http://www.swift.ac.uk/1SXPS
Optical field solutions are calculated from the raw source positions of all
these catalogs as described in my MORX paper 2016PASA...33...52F 2016PASA...33...52F.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I04 --- Ref Reference number
6- 11 I6 ---- N1 ? Number of this reference for Name
13- 18 I6 --- N2 ? Number of this reference for redshift
21- 39 A19 --- Bibcode BibCode
41- 71 A31 --- Aut Author's name
73-162 A90 --- Com Comments
--------------------------------------------------------------------------------
Acknowledgements:
If using this catalogue in published research, please so cite. The
confirmed quasars of this catalog (to Jan 2015) were published as the
Half Million Quasars (HMQ) catalog: Flesch E., 2015PASA...32...10F 2015PASA...32...10F,
which can be used as the citation.
Note however that Milliquas uses optical sky data from
2017PASA...34...25F 2017PASA...34...25F whereas the HMQ used optical sky data from
2004A&A...427..387F 2004A&A...427..387F, Cat. J/A+A/427/387, Appendix A.
This research has made use of the NASA/IPAC Extragalactic Database
(NED) which is operated by the Jet Propulsion Laboratory,California
Institute of Technology, under contract with the National Aeronautics
and Space Administration.
This research has made use of the SIMBAD database and cross-match
service (to obtain Gaia DR2 data) provided by CDS, Strasbourg, France.
History:
Copied at http://quasars.org/milliquas.htm
From Eric Flesch, eric(at)flesch.org
(End) Patricia Vannier [CDS] 09-Jul-2019