NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-24 T02:44:04 PDT
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Velocity(km/s): Unconstrained
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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. 493

INDEX for PKS 1251-407
Essential Data (jump to sub-section of this query report):

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

Images
   
13 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
42 Reference(s)   
7 Position data point(s)
1 Redshift data point(s)   
5 Note(s)   
PKS data    

ESSENTIAL NOTE for PKS 1251-407 (Back to INDEX)
[VCV96] have m = 19.9                                                           

CROSS-IDENTIFICATIONS for PKS 1251-407 (Back to INDEX)
Object Names Type Object Names Type
PKS 1251-407RadioSICRF J125359.5-405930 RadioS
LQAC 193-040 001 QSO IERS B1251-407 RadioS
BZQ J1253-4059 QSO IVS B1251-407 RadioS
PKS B1251-407 RadioSVCS2 J1253-4059 RadioS
PKS J1253-4059 RadioSVCS3 J1253-4059 RadioS
PMN J1253-4059 RadioS2XMM J125359.6-405930 XrayS
PMNM 125112.9-404316 RadioS2XMMp J125359.6-405930 XrayS
SUMSS J125359-405932 RadioS[VCV2001] J125359.5-405931 QSO
AT20G J125359-405931 RadioS[HRT2007] J125358-405928 RadioS
CRATES J1253-4059 RadioS[MGL2009] 1547 QSO
CRATES J125359.62-405930.5 RadioS[MSC2011] J125359.50-405930.3 QSO
     

COORDINATES for PKS 1251-407 (Back to INDEX)

Position Reference:1998AJ....116..516M

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0) 192.8025855 -40.7207048 12h51m12.6205s -40d43m14.537s  1.30E-02  4.90E-03    0
Equatorial (J2000.0) 193.4980562 -40.9918581 12h53m59.5335s -40d59m30.689s  1.30E-02  4.90E-03    0
Ecliptic   (B1950.0) 209.2354579 -32.1196079                              1.30E-02  4.90E-03  153
Ecliptic   (J2000.0) 209.9306683 -32.1233308                              1.30E-02  4.90E-03  153
Galactic             303.4513029  21.8773630                              1.30E-02  4.90E-03    1
SuperGalactic        156.3248790 -10.4190640                              1.30E-02  4.90E-03  102
Additional detailed measurements with references are also available by clicking below:
7 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for PKS 1251-407 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for PKS 1251-407 (Back to INDEX)
TypeAs PublishedNED HomogenizedFlagReference Code
Activity TypeFlat-Spectrum Radio Source,Flat-Spectrum Radio Source...2007ApJS..171...61H
2 Detailed Classification(s)


FOREGROUND GALACTIC EXTINCTION for PKS 1251-407 (Back to INDEX)
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]0.4840.4050.3060.2420.1680.4730.3690.2550.1900.1410.0790.0500.0340.017
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]0.5940.4710.3620.2920.2120.5630.4140.3000.2280.1620.0990.0630.0400.017


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.410 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for PKS 1251-407 (Back to INDEX)
Helio. Radial Velocity     :   1337075 km/s       
Redshift                   :  4.460000           ; 1996MNRAS.278L..11S
Description                :                RLQ  
Magnitude and Filter       : 23.7 
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:
1 Redshift data point(s)      13 photometric data point(s)      

QUANTITIES DERIVED FROM REDSHIFT(Details)
Calculated and Corrected Velocities
V (Heliocentric)           : 1337075  km/s                1996MNRAS.278L..11S
V (Kinematic LSR)          : 1337071  km/s                1986MNRAS.221.1023K
V (Galactocentric GSR)     : 1336902 +/-      7 km/s      1991RC3.9.C...0000d
V (Local Group)            : 1336814 +/-     16 km/s      1996AJ....111..794K
V (3K CMB)                 : 1337355 +/-     20 km/s      1996ApJ...473..576F
V (Virgo Infall only)      : 1336933 +/-     18 km/s      2000ApJ...529..786M
V (Virgo + GA only)        : 1337332 +/-     33 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   : 1337416 +/-     34 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/- 5 km/sec/Mpc)
D (Galactocentric GSR)     : 18313.7 +/- 1282.0 Mpc      (m-M) = 46.31 +/- 0.15 mag
D (Local Group)            : 18312.5 +/- 1281.9 Mpc      (m-M) = 46.31 +/- 0.15 mag
D (3K CMB)                 : 18319.9 +/- 1282.4 Mpc      (m-M) = 46.31 +/- 0.15 mag
D (Virgo Infall only)      : 18314.1 +/- 1282.0 Mpc      (m-M) = 46.31 +/- 0.15 mag
D (Virgo + GA only)        : 18319.6 +/- 1282.4 Mpc      (m-M) = 46.31 +/- 0.15 mag
D (Virgo + GA + Shapley)   : 18320.8 +/- 1282.5 Mpc      (m-M) = 46.31 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :   88787 pc/arcsec = 88.787 kpc/arcsec = 5327.24 kpc/arcmin = 319.63 Mpc/degree
Scale (Local Group)        :   88782 pc/arcsec = 88.782 kpc/arcsec = 5326.89 kpc/arcmin = 319.61 Mpc/degree
Scale (3K CMB)             :   88817 pc/arcsec = 88.817 kpc/arcsec = 5329.05 kpc/arcmin = 319.74 Mpc/degree
Scale (Virgo Infall only)  :   88789 pc/arcsec = 88.789 kpc/arcsec = 5327.36 kpc/arcmin = 319.64 Mpc/degree
Scale (Virgo + GA only)    :   88816 pc/arcsec = 88.816 kpc/arcsec = 5328.95 kpc/arcmin = 319.74 Mpc/degree
Scale(Virgo + GA + Shapley):   88821 pc/arcsec = 88.821 kpc/arcsec = 5329.29 kpc/arcmin = 319.76 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 = 0.019 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 1337075 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 4.460936 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 40458 Mpc (m-M) = 48.04 mag Angular-Size Distance : 1357 Mpc (m-M) = 40.66 mag Co-Moving Radial Distance : 7409 Mpc (m-M) = 44.35 mag Co-Moving Tangential Dist. : 7409 Mpc (m-M) = 44.35 mag Co-Moving Volume : 1.7e+03 Gpc^3 Light Travel-Time : 11.954 Gyr Age at Redshift 4.460936 : 1.345 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 6577 pc/arcsec = 6.577 kpc/arcsec = 394.64 kpc/arcmin = 23.68 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.00112; Magnitude per Unit Area = 7.373 mag
To change Cosmological Input Parameters for Derived Quantities: Enter Your Preferred Values and click on "Submit Changed Hubble Parameters for this object" button
HoΩmatterΩvacuum     
Correct Redshift To the Reference Frame defined by: as Input for Calculation of the Distances and Cosmology-Corrected Quantities

QUICK-LOOK PHOTOMETRY and LUMINOSITIES for PKS 1251-407 (Back to INDEX)

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).

Spectral
Region
Band Apparent Mag or Flux Refcode Absolute Mag or νLν [W] νLν [L(Bolometric)]
X-Ray0.2-10 keV (XMM) 1.97E-13 erg s^-1^ cm^-2^ 2006MNRAS.368..985Y 3.85E+39 [W] 1.00E+13
Radio2700 MHz 0.250 Jy 1990PKS90.C...0000W 1.32E+38 [W] 3.44E+11
NOTE: The above quantities are derived using a Distance Modulus of 48.04 mag corresponding to
a Luminosity Distance of 40458.4 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 13 Photometric data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for PKS 1251-407 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- PKS 1251-407SIMBAD (CDS, Strasbourg, France)
Parkes Radio Sources Catalogue -- PKS B1251-407 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J1253-4059 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- PKS 1251-407GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- PKS 1251-407NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 12h53m59.5s, -40d59m31s (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)
The NRAO Data Archive System





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