CDS

PKS 1908-201

Gaia DR2: For now, Gaia DR2 data are not in SIMBAD, it is available in Vizier. The CDS will perform a cross-identification of Gaia DR2 with the astronomical objects in the SIMBAD bibliographic database. This will be done with very strict criteria in order to avoid erroneous cross-identifications. Especially, only the 6.5 milllions objects with subarseconds coordinates will be searched in Gaia DR2. Expected to be ready on June 30, 2018.

Query : PKS 1908-201
C.D.S. - SIMBAD4 rel 1.6 - 2018.05.20CEST21:35:36

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations

Basic data :
QSO B1908-202 -- 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 (ICRF,IERS,...), gam (2EG,3EG,...), QSO (Ref,QSO,...), Bla (Ref,[MGL2009],...), AGN (Ref,CGRaBS), * (EPIC), cm (AT20G), IR (2MASS), X (Ref)
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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) : 		19 11 09.6538 -20 06 55.015 [ 408.8 334.8 0 ] C 2009A&A...505..385A
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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) : 		19 08 12.47 -20 11 55.1 [ 408.8 334.8 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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) : 		016.8744 -13.2174 [ 408.8 334.8 0 ]
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) 190582 [~] / z(~) 1.119 [~] / cz 335468 [~]
   D 2003AJ....125..572H
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 (5) :
B 18.21 [~] D 2008MNRAS.384..775M
R 18.14 [~] D 2008ApJS..175...97H
J 15.047 [0.036] C 2003yCat.2246....0C
H 14.017 [0.036] C 2003yCat.2246....0C
K 13.131 [0.043] C 2003yCat.2246....0C
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within radius 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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (39) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

QSO B1908-202 0FGL J1911.2-2011 MRC 1908-201 WMAP J1911-2007
AT20G J191109-200655 1FGL J1911.2-2007 OHIO V -213 [GR92] 1908-201
AT20G J191109.7-200655 2FGL J1911.1-2005 PKS 1908-201 [MEM2008] 252
CGRaBS J1911-2006 3FGL J1911.2-2006 PKS J1911-2006 [MGL2009] BZQ J1911-2006
2EG J1911-1945 GRO J1911-20 PMN J1911-2006 [MGL2015] 5BZQ J1911-2006
3EG J1911-2000 ICRF J191109.6-200655 QSO J1911-201 [VV2003] J191109.7-200655
EGR J1912-2000 IERS B1908-201 RORF 1908-201 [VV2006] J191109.7-200655
EPIC 217700467 INTREF 967 TXS 1908-201 [VV2010] J191109.7-200655
EQ 1908-2011 IVS B1908-201 VSOP J1911-2006 [WPW2003] J1911-2006
EQ 1908-20 2MASS J19110965-2006551 WMAP J1911-2006

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References (169 between 1998 and 2018) (Total 210)
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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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : PKS 1908-201

Link by name to the catalogue in VizieR :

3EG J1911-2000 IERS B1908-201 2MASS J19110965-2006551 PKS 1908-201 PKS J1911-2006
PMN J1911-2006 VSOP J1911-2006

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
The list of all annotations to SIMBAD objects can be found here .

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2018.05.20-21:35:36

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