7C 1015+3557

Basic data :
7C 1015+3557 -- Blazar 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 (2014ApJS,7C,...), QSO (2010ApJ,QSO,...), Bla (2009A&A,[MGL2009],...), AGN (2007AJ,CGRaBS,...), gam (1FGL,2FGL,...), X (2007AJ,RX,...), Q? (2021MNRAS,7CQ,...), * (USNO,Gaia), MIR (WISEA,WISE), Opt (LAMOST,SDSS), Bz? ([SRM2005]), AG? (2022ApJS), blu (CSO), UV (GALEX) 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) : 10 18 10.98810472 +35 42 39.4409041 (Radio) [ 0.033981 0.0396 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) : 10 15 16.23030313 +35 57 41.4459589 [ 0.033981 0.0396 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) : 188.47275863891 +56.42514923311 [ 0.033981 0.0396 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 : -0.150 0.225 [0.118 0.106 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) 199359 [33] / z(spectroscopic) 1.22935 [0.00011] / cz 368549.9 [33.0]    (Opt) C 2020ApJS..249....3A 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): 0.0584 [0.1285] A 2020yCat.1350....0G 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 (9) : B 18.62 [~] D 2010A&A...518A..10V V 18.07 [~] D 2010A&A...518A..10V R 17.65 [~] D 2008ApJS..175...97H G 17.849611 [0.004805] C 2020yCat.1350....0G u (AB) 18.355 [0.014] C 2020ApJS..249....3A g (AB) 18.250 [0.006] B 2020ApJS..249....3A r (AB) 17.910 [0.006] B 2020ApJS..249....3A i (AB) 17.844 [0.007] B 2020ApJS..249....3A z (AB) 17.949 [0.020] C 2020ApJS..249....3A	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.

7C 1015+3557	FIRST J101810.9+354239	RGB J1018.2+3542	WISE J101810.97+354239.5
B2 1015+35 B	GALEX J101810.9+354241	RGB J1018+357	WN B1015.2+3557
B2.3 1015+35 B	GB2 1015+359	RX J1018.1+3542	[HB93] 1015+359
BWE 1015+3557	GB6 B1015+3557	1RXS J101810.5+354233	[MGL2009] BZQ J1018+3542
7C 101516.59+355740.10	87GB 101516.6+355726	S4 1015+359	[MML2015] 5BZQ J1018+3542
7C 101516.69+355743.00	ICRF J101810.9+354239	S4 1015+35	[P82] 1015+359
CGRaBS J1018+3542	IERS B1015+359	SDSS J101810.98+354239.4	[SRC2012b] J1018+3542
CJ1 1015+359	IVS B1015+359	SDSS J101810.97+354239.4	[SRM2005] J101810.98+354239.4
CJF B1015+359	JVAS B1015+359	TGSSADR J101811.3+354240	[VV2000] J101811.0+354239
CLASS J101810.9870+354239.429	JVAS J1018+3542	TXS 1015+359	[VV2003] J101811.0+354239
7CQ 1015+359	JVAS J1018+357	USNO-A2.0 1200-06490421	[VV2006] J101811.0+354239
CRATES J101811+354229	LAMOST J101810.98+354239.4	VCS1 J1018+3542	[VV2010] J101811.0+354239
CSO 257	MASIV J1018+3542	VIPS J10181+3542	[VV96] J101811.0+354239
FBQS J1018+3542	MITG J101811+3542	VLSSr J101810.2+354233	[VV98] J101811.0+354239
1FGL J1016.2+3548	NVSS J101811+354240	WB 1015+3557	Gaia DR3 753415535202884352
2FGL J1017.0+3531	OHIO L 326	WISEA J101810.97+354239.4	Gaia DR1 753415535202884352
3FGL J1018.3+3542	QSO B1015+359	WISEA J101810.97+354239.5	Gaia DR2 753415535202884352
4FGL J1018.4+3540	QSO B1015+36	WISE J101810.98+354239.6

References (187 between 1850 and 2024) (Total 187) 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 : 7C 1015+3557

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