QSO B0420-0127

Query : QSO B0420-0127

Basic data :
QSO B0420-0127 -- Quasar
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		Rad (2010AJ,CLASS,...), QSO (2009ApJS,QSO,...), gam (2EG,3EG,...), Bla (2009A&A,[DGT2001],...), X (2009A&A,2E,...), AGN (2011ApJ,CGRaBS), G (6dFGS,LEDA,...), IR (IRAS,2MASSI,...), smm (JCMTSE,JCMTSF), MIR (WISEA,WISE), Q? (2021MNRAS), AG? (2022ApJS), V* (FASTT), * (Gaia), cm (AT20G), NIR (2MASS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		04 23 15.80072217 -01 20 33.0656073 (Radio) [ 0.030448 0.0309 0 ] A 2020A&A...644A.159C
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		04 20 43.54651604 -01 27 28.7596651 [ 0.030448 0.0309 0 ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		195.29011973805 -33.13992675104 [ 0.030448 0.0309 0 ]
Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode"
  • pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr)
  • pm-dec : mu-dec (expressed in the ICRS system in mas/yr)
  • [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg)
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the proper motion reference
Proper motions mas/yr : 		-0.054 -0.141 [0.210 0.184 90] A 2020yCat.1350....0G
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 171440 [55] / z(~) 0.91609 [0.00018] / cz 274636.0 [55.0]
   (Opt) C 2009MNRAS.399..683J
Syntax of parallax is : 'value quality [error] bibcode'
  • value : parallax value
  • quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality)
  • [error] : mean error
  • bibcode : bibcode of the parallax reference
Parallaxes (mas): 		0.3258 [0.3416] A 2020yCat.1350....0G
Syntax of angular size is : "maj-axis min-axis angle (wtype) quality bibcode"
  • maj-axis : major axis size (arc minutes)
  • min-axis : minor axis size (arc minutes)
  • angle : orientation angle (in degrees)
  • (wtype) : wavelength class for the origin of the angular size (Rad, mm, IR, Opt, UV, Xray, Gam)
  • quality : flag of quality of the angular size values ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the angular size reference
Angular size (arcmin): 		0.0000123 0.0000047 -2 (Rad) D 2010AJ....139.1713C
Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z
  • (System) : may be AB (default is Vega)
  • flux-value : value of flux or magnitude
  • [error] : error value
  • quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality)
  • MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4])
  • bibcode : bibcode of the flux reference
Fluxes (7) :
B 17.50 [~] D 2010A&A...518A..10V
V 17.00 [~] D 2010A&A...518A..10V
R 16.28 [~] D 2008ApJS..175...97H
G 19.203230 [0.032911] C 2020yCat.1350....0G
J 15.439 [0.059] C 2003yCat.2246....0C
H 15.48 [0.02] C 2012AJ....144..112F
K 13.693 [0.045] C 2003yCat.2246....0C
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
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within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon
Some important notes on this object about identifications and objects associations.
notes:

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (101) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B0420-0127 IRAS F04207-0127 QSO B0420-014 [DML87] 118
AT20G J042315-012033 IRAS 04207-0127 QSO B0420-015 [GGR94] 0420-014
CGRaBS J0423-0120 IVS B0420-014 RFC J0423-0120 [GR92] 0420-014
CLASS J042315.8010-012033.064 JCMTSE J042315.7-012032 RORF 0420-014 [HB93] 0420-014
CRATES J042315-012034 JCMTSF J042315.7-012032 RX J0423.2-0120 [IN88] 0420-014
Cul 0420-014 1Jy 0420-014 1RXS J042315.1-012019 [LBD96] J0423-0058
6dFGS gJ042315.8-012033 1Jy 0420-01 S3 0420-01 [MGL2009] BZQ J0423-0120
2E 1013 LEDA 75147 SPASS J042312-012051 [MML2015] 5BZQ J0423-0120
2E 0420.7-0127 2MASS J04231580-0120330 SQUAD DR1 J042315-012033 [P82] 0420-014
2EG J0423-0058 2MASSI J0423158-012033 TGSSADR J042315.8-012033 [S77] 83
3EG J0422-0102 MRC 0420-014 TIC 248612347 [VV2000] J042315.8-012033
EGR J0425-0032 NAICGB 0420-014 TXS 0420-014 [VV2003] J042315.8-012033
FASTT 159 NAIC 0420-014 UT 0420-014 [VV2006] J042315.8-012033
0FGL J0423.1-0112 NEWPS5 J0423-0120 VCS1 J0423-0120 [VV2010] J042315.8-012033
1FGL J0423.2-0118 NRAO 0420-01 VSOP J0423-0120 [VV96] J042315.8-012033
2FGL J0423.2-0120 NVSS J042315-012032 WB 0420-0126 [VV98] J042315.8-012033
3FGL J0423.2-0119 OA 00129 WISEA J042315.79-012032.7 [VYP98] 0420-014
4FGL J0423.3-0120 OHIO F -035 WISE J042315.79-012032.9 [WCO2009] J042317-012000
1FHL J0423.3-0121 OHIO A 129 WISE J042315.79-012032.7 [WPW2003] J0423-0120
3FHL J0423.3-0120 PCCS2 143 G195.28-33.13 WMAP 110 [WTW94] 0420-014
1FLE J0424-0042 PKS 0420-01 WMAP J0423-0120 Gaia DR3 3254030122969225472
GLEAM J042316-012034 PKS J0423-0120 WMAP J0423-0118 Gaia DR2 3254030122969225472
GRA B0419-01 PKS 0420-014 9Y-MST J0423-0119 Gaia DR1 3254030122969225472
ICRF J042315.8-012033 PKS 0420-015 [BDW2002] q0420-0127
IERS B0420-014 PMN J0423-0120 [CAB95] IRAS F04207-0127
INTREF 181 QSO J0423-0120 [DGT2001] B0420-014

References (1207 between 1850 and 2024) (Total 1207)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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                Reference summaries :

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Collections of Measurements


velocities : 13    PLX : 1    PM : 3   

   

Observing logs


herschel : 2    ISO : 7   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : QSO B0420-0127

Link by name to the catalogue in VizieR :

2E 1013 3EG J0422-0102 IERS B0420-014 IRAS F04207-0127 IRAS 04207-0127
2MASS J04231580-0120330 2MASSI J0423158-012033 NVSS J042315-012032 PKS 0420-01 PKS J0423-0120
PKS 0420-014 PKS 0420-015 PMN J0423-0120 1RXS J042315.1-012019 VSOP J0423-0120
WISEA J042315.79-012032.7 WISE J042315.79-012032.9 WISE J042315.79-012032.7 WMAP J0423-0120 WMAP J0423-0118
[DML87] 118 Gaia DR3 3254030122969225472 Gaia DR2 3254030122969225472 Gaia DR1 3254030122969225472

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