TXS 0506+056

Basic data :
QSO J0509+0541 -- BL Lac 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,BWE,...), gam (EGR,1FGL,...), BLL (2010ApJ,[VV2000b],...), X (2009A&A,RX,...), Bla (2013ApJS,[MGL2009],...), QSO (2016A&A,QSO), AGN (2011ApJ,CGRaBS), MIR (WISEA,WISE), Y*O (2018ApJS), Bz? ([SRM2005]), V* (2018AJ), * (Gaia), NIR (2MASS), Opt (ATO) 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) : 05 09 25.9644373872 +05 41 35.333820420 (Optical) [ 0.0268 0.0199 90 ] A 2020yCat.1350....0G 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) : 05 06 45.7710280084 +05 37 50.259650108 [ 0.0268 0.0199 90 ] 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) : 195.4053961397255 -19.6360310703258 [ 0.0268 0.0199 90 ] 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 : 0.024 -0.022 [0.032 0.026 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) 84597 [300] / z(~) 0.3365 [0.0010] / cz 100880 [300]    D 2018ApJ...854L..32P 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): 0.0000130 0.0000052 -8 (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 (12) : U (AB) 15.32 [0.05] D 2007ApJS..173..471M B (AB) 14.95 [0.05] D 2007ApJS..173..471M V (AB) 14.78 [0.04] D 2007ApJS..173..471M R 15.12 [~] D 2008ApJS..175...97H G 15.174425 [0.019079] C 2020yCat.1350....0G J 12.713 [0.027] C 2003yCat.2246....0C H 11.904 [0.022] C 2003yCat.2246....0C K 11.079 [0.023] C 2003yCat.2246....0C g (AB) 14.75 [0.05] D 2007ApJS..173..471M r (AB) 14.45 [0.05] D 2007ApJS..173..471M i (AB) 14.28 [0.05] D 2007ApJS..173..471M z (AB) 14.02 [0.05] D 2007ApJS..173..471M	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 points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to 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!).
Some important notes on this object about identifications and objects associations. notes: See also Specfind radio flux densities. Misclassified YSO in 2018ApJS..236...27C

QSO J0509+0541	GB6 B0506+0537	NVSS J050925+054135	WISE J050925.96+054135.3
ATO J077.3581+05.6931	87GB 050645.2+053747	PMN J0509+0541	Zel 0506+056
BWE 0506+0537	GeV J0508+0540	QSO B0506+056	[BSF97] J050925.98+054135.4
CGRaBS J0509+0541	GLEAM J050926+054133	RGB J0509+056	[LBH86] 0506+056
CLASS J050925.9640+054135.337	ICRF J050925.9+054135	RGB J0509.4+0541	[MGL2009] BZB J0509+0541
CRATES J050926+054143	IERS B0506+056	RX J0509.3+0541	[MML2015] 5BZB J0509+0541
EGR J0509+0550	INTREF 226	1RXS J050927.0+054145	[SRM2005] J050925.96+054135.3
1FGL J0509.3+0540	IVS B0506+056	1SXPS J050925.9+054134	[VV2000b] J050925.9+054135
2FGL J0509.4+0542	JVAS B0506+056	TeV J0509+056	[VV2003b] J050925.9+054135
3FGL J0509.4+0541	JVAS J0509+0541	TGSSADR J050926.0+054135	[VV2006b] J050925.9+054135
4FGL J0509.4+0542	MASIV J0509+0541	TIC 455069576	[VV2010b] J050925.9+054135
1FHL J0509.5+0542	2MASS J05092597+0541353	TXS 0506+056	[VV98b] J050925.9+054135
2FHL J0509.5+0541	MITG J0509+0541	VCS1 J0509+0541	Gaia DR3 3239205274549727488
3FHL J0509.4+0542	MITG J050927+0541	VER J0509+057	Gaia DR1 3239205270253093632
FL8Y J0509.4+0542	NAICGB 0506+056	VSOP J0509+0541	Gaia DR2 3239205274549727488
1FLE J0506+0528	NAIC 0506+056	WISEA J050925.96+054135.3

References (421 between 1850 and 2024) (Total 421) Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

Collections of Measurements

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : TXS 0506+056

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