Date and Time of the Query: 2019-08-25 T01:52:09 PDT
Help | Comment | NED Home

You have selected the following parameters to search on:

Velocity(km/s): Unconstrained
Include ANY Object Type:
Exclude ANY Object Type:

Parameters for Distances and Cosmology: Ho= 73.0; Ωmatter = 0.27; Ωvacuum = 0.73;
Derived Quantities use a Redshift corrected to a Reference Frame defined by the 3K CMB

Detailed Information for Object No. 625

INDEX for PKS 1622-253
Essential Data (jump to sub-section of this query report):

   Essential Note    
   Basic Data   
   Quantities Derived from Redshift    
   Redshift-Independent Distances
   Quick-Look Photometry and Luminosities
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

45 Photometric data point(s) and SED   
Redshift-Independent Distances
175 Reference(s)   
22 Position data point(s)
12 Redshift data point(s)   
8 Note(s)   
PKS data    

ESSENTIAL NOTE for PKS 1622-253 (Back to INDEX)

Object Names Type Object Names Type
PKS 1622-253RadioSICRF-Ext1 J1625-2527 RadioS
2MASS J16254688-2527380 IrS IERS B1622-253 RadioS
2MASSi J1625468-252737 IrS IVS B1622-253 RadioS
LQAC 246-025 001 QSO VERA J1625-2527 RadioS
CGRaBS J1625-2527 QSO NEWPS_5yr_5s 362 RadioS
LEDA 2828821 G NEWPS_5yr_5s_15 348 RadioS
SSTSL2 J162546.91-252738.9 IrS 3FGL J1625.7-2527 GammaS
BZU J1625-2527 QSO 2FGL J1625.7-2526 GammaS
PKS B1622-253 RadioS1FGL J1625.7-2524 GammaS
PKS B1622-253 ID G EGRET J1626-24 GammaS
PKS J1625-2527 RadioS[KWP81] 1622-253 RadioS
PMN J1625-2527 RadioS[VCV2001] J162547.0-252739 QSO
MRC 1622-253 RadioS[HRT2007] J162547-252734 RadioS
NVSS J162546-252739 RadioS[MEM2008] 220 G
VSOP J1625-2527 RadioS[MGL2009] 2125 QSO
OS -237.8 RadioS[LBC2010] J1625-2527 RadioS
AT20G J162546-252739 RadioS[MSC2011] J162546.88-252738.2 QSO
AT20G J162546.99-252739.3 RadioS[MSU2014] J162546-252738 QSO
CRATES J1625-2527 RadioS[XH2014] J246.4454-25.4606 QSO
CRATES J162546.89-252738.3 RadioS[ZZ2014] J162546.88-252738.3 RadioS
TXS 1622-253 RadioS    
ICRF J162546.8-252738 RadioS    

COORDINATES for PKS 1622-253 (Back to INDEX)

Position Reference:2002ApJS..141...13B

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 245.6837913 -25.3476750 16h22m44.1099s -25d20m51.630s  2.00E-04  1.00E-04    0
Equatorial (J2000.0) 246.4453817 -25.4606461 16h25m46.8916s -25d27m38.326s  2.00E-04  1.00E-04    0
Ecliptic   (B1950.0) 248.1041714  -3.7318596                              2.00E-04  1.00E-04  171
Ecliptic   (J2000.0) 248.8026603  -3.7381148                              2.00E-04  1.00E-04  171
Galactic             352.1403566  16.3187271                              2.00E-04  1.00E-04   48
SuperGalactic        164.4733705  35.0939001                              2.00E-04  1.00E-04  135
Additional detailed measurements with references are also available by clicking below:
22 Position data point(s)


TypeAs PublishedNED HomogenizedFlagReference Code
Activity TypeFlat-Spectrum Radio Source,Flat-Spectrum Radio Source...2007ApJS..171...61H
2 Detailed Classification(s)

Galactic Extinction from the Schlafly & Finkbeiner 2011, Appendix; 2011ApJ...737..103S (SF11) recalibration 
of the Schlegel, Finkbeiner & Davis 1998, Appendix B; 1998ApJ...500..525S (SFD98) infrared-based dust map.
The map is based on dust emission from COBE/DIRBE and IRAS/ISSA;
the recalibration assumes a Fitzpatrick (1999PASP..111...63F) reddening law with Rv = 3.1 and different source spectrum than SFD98.

L a n d o l tS D S SU K I R T
Filter [µm]U (0.35)B (0.43)V (0.54)R (0.64)I (0.80)u (0.36)g (0.47)r (0.62)i (0.75)z (0.89)J (1.25)H (1.66)K (2.19)L' (3.78)
Aλ [mag]5.3424.4693.3802.6731.8555.2254.0712.8162.0931.5570.8740.5530.3720.189
Show/Hide Aλ magnitudes in all 88 photometric bands based on SF11
For completeness, we include the original SFD98 values:
L a n d o l tS D S SU K I R T
Filter [µm]U (0.34)B (0.44)V (0.54)R (0.65)I (0.81)u (0.35)g (0.49)r (0.63)i (0.78)z (0.93)J (1.27)H (1.67)K (2.22)L' (3.81)
Aλ [mag]6.2464.9603.8103.0722.2305.9254.3603.1622.3981.7001.0370.6620.4220.176

Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.900 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for PKS 1622-253 (Back to INDEX)
Helio. Radial Velocity     :    235637 km/s       
Redshift                   :  0.786000           ; 1994MNRAS.269..998d
Description                : FSRQ;LPQ      blazar
Magnitude and Filter       : 21.9 
Spare 3                    :      
Spare 4                    :      

NOTE: This information is indicative only. With the exception of the
      redshift they are unreferenced and highly inhomogeneous as to
      their origin. The Radial Velocity (when available) is computed
      from the listed redshift. The remaining values are designed to
      orient the user with a quick-look, overall assessment of the
      general properties of the object in question. They are not
      averages nor are they standardized in any way.
Additional detailed measurements with references are also available by clicking below:
12 Redshift data point(s)      45 photometric data point(s)      

Calculated and Corrected Velocities
V (Heliocentric)           :  235637  km/s                1994MNRAS.269..998d
V (Kinematic LSR)          :  235647  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     :  235617 +/-      1 km/s      1991RC3.9.C...0000d
V (Local Group)            :  235574 +/-      4 km/s      1996AJ....111..794K
V (3K CMB)                 :  235723 +/-      6 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :  235648 +/-      6 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :  235956 +/-     23 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :  236028 +/-     23 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     :  3227.6 +/-  225.9 Mpc      (m-M) = 42.54 +/- 0.15 mag
D (Local Group)            :  3227.0 +/-  225.9 Mpc      (m-M) = 42.54 +/- 0.15 mag
D (3K CMB)                 :  3229.1 +/-  226.0 Mpc      (m-M) = 42.55 +/- 0.15 mag
D (Virgo Infall only)      :  3228.0 +/-  226.0 Mpc      (m-M) = 42.54 +/- 0.15 mag
D (Virgo + GA only)        :  3232.3 +/-  226.3 Mpc      (m-M) = 42.55 +/- 0.15 mag
D (Virgo + GA + Shapley)   :  3233.3 +/-  226.3 Mpc      (m-M) = 42.55 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :   15648 pc/arcsec = 15.648 kpc/arcsec = 938.88 kpc/arcmin =  56.33 Mpc/degree
Scale (Local Group)        :   15645 pc/arcsec = 15.645 kpc/arcsec = 938.71 kpc/arcmin =  56.32 Mpc/degree
Scale (3K CMB)             :   15655 pc/arcsec = 15.655 kpc/arcsec = 939.30 kpc/arcmin =  56.36 Mpc/degree
Scale (Virgo Infall only)  :   15650 pc/arcsec = 15.650 kpc/arcsec = 939.00 kpc/arcmin =  56.34 Mpc/degree
Scale (Virgo + GA only)    :   15670 pc/arcsec = 15.670 kpc/arcsec = 940.23 kpc/arcmin =  56.41 Mpc/degree
Scale(Virgo + GA + Shapley):   15675 pc/arcsec = 15.675 kpc/arcsec = 940.52 kpc/arcmin =  56.43 Mpc/degree

To Search for Nearby Objects (Physical Companions): Enter Your Preferred Values and click on "Submit Environment Search" button
Search for Objects within +/-arcmin where 100 kpc = 0.106 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 235637 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.786287 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 4783 Mpc (m-M) = 43.40 mag Angular-Size Distance : 1499 Mpc (m-M) = 40.88 mag Co-Moving Radial Distance : 2678 Mpc (m-M) = 42.14 mag Co-Moving Tangential Dist. : 2678 Mpc (m-M) = 42.14 mag Co-Moving Volume : 80.4 Gpc^3 Light Travel-Time : 6.572 Gyr Age at Redshift 0.786287 : 6.727 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 7268 pc/arcsec = 7.268 kpc/arcsec = 436.07 kpc/arcmin = 26.16 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.09822; Magnitude per Unit Area = 2.52 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities


The brightest flux in each of the following spectral regions, when available:
Gamma-Ray (ν > 2E19 Hz); X-Ray (2E19 Hz > ν > 2E16 Hz); Ultraviolet (2E16 Hz > ν > 9E14 Hz); Visual (9E14 Hz > ν > 3E14 Hz);
Near-Infrared (3E14 Hz > ν > 6E13 Hz); Mid-Infrared (6E13 Hz > ν > 7.5E12 Hz); Far-Infrared (7.5E12 Hz > ν > 1E12 Hz);
Sub-Millimeter (1E12 Hz > ν > 3E11 Hz); Millimeter (3E11 Hz > ν > 3E10 Hz); Radio (3E10 Hz > ν).

Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
Gamma-Ray0.1-100 GeV (Fermi) 82.1E-12 +/- 4.2E-12 erg/cm^2^/s 2012ApJS..199...31N 2.25E+40 +/- 4.64E+39 [W] 5.85E+13 +/- 1.21E+13
VisualR 19.60 mag 2008ApJS..175...97H-23.80 [mag] 1.48E+11
Near-InfraredK_s (2MASS/CTIO) 14.663 +/- 0.182 mag 2006AJ....131.1163S-28.74 +/- 0.53 [mag] 9.00E+11 +/- 2.35E+11
Mid-Infrared24 microns (MIPS) 4.4911E+04 +/- 2.8070E+02 microJy 2013SSTSLC4.2....0C 1.56E+39 +/- 3.12E+38 [W] 4.06E+12 +/- 8.12E+11
Sub-Millimeter850 microns (JCMT) 473.2 milliJy 2010MNRAS.401.1240J 4.57E+38 [W] 1.19E+12
Millimeter31400 MHz 7.41 +/- .11 Jy 1981AJ.....86.1306G 6.37E+38 +/- 1.28E+38 [W] 1.66E+12 +/- 3.32E+11
Radio5 GHz (VLBA) 3.5 Jy 2004ApJ...616..110H 4.79E+37 [W] 1.25E+11
NOTE: The above quantities are derived using a Distance Modulus of 43.40 mag corresponding to
a Luminosity Distance of 4783.3 Mpc [assuming 10%uncertainty] using the Cosmology-Corrected Quantities.
The quantities quoted above have not necessarily been corrected for foreground extinction, and no K-Corrections have been applied.

View details and SED for 45 Photometric data point(s) available in NED.

Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- PKS 1622-253SIMBAD (CDS, Strasbourg, France)
Parkes Radio Sources Catalogue -- PKS B1622-253 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J1625-2527 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 1622-253 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 2828821 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- PKS 1622-253GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- PKS 1622-253NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 16h25m46.9s, -25d27m38s (J2000)Site/Service
Query Optical and UV Mission Archives (Default search radius)Multimission Archive at STScI (MAST)
Query High Energy Mission Archives (Default search radius)HEASARC (NASA/GSFC)
Query IRSA for WISE images (10 arcmin search radius)NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
Band(s): Size:
NASA/IPAC Infrared Science Archive (IRSA)
NASA/IPAC Infrared Science Archive (IRSA)
 Size:    Contours (PS)  JPEG  FITS File 
NRAO/VLA Sky Survey (NVSS)
The NRAO Data Archive System

Back to NED Home