NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-21 T15:53:03 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. 160

INDEX for PKS 0257-128
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
   Quick-Look Angular and Physical Sizes
   Classifications
   Foreground Galactic Extinction    
   External Services
Detailed Data (NED queries):

Images
   
32 Photometric data point(s) and SED   
Spectra   
Redshift-Independent Distances
17 Reference(s)   
11 Position data point(s)
3 Redshift data point(s)   
2 Diameter data point(s)   
PKS data    

ESSENTIAL NOTE for PKS 0257-128 (Back to INDEX)
N/A

CROSS-IDENTIFICATIONS for PKS 0257-128 (Back to INDEX)
Object Names Type Object Names Type
PKS 0257-128RadioSPKS J0259-1236 RadioS
2MASX J02595532-1236348 IrS PMN J0259-1236 RadioS
2MASS J02595528-1236349 IrS MRC 0257-128 RadioS
GALEXASC J025955.25-123634.9 UvS NVSS J025955-123634 RadioS
GALEXMSC J025955.18-123635.3 UvS VLSS J0259.9-1236 RadioS
6dF J0259552-123635 G OD -196 RadioS
6dF J0259553-123635 G AT20G J025955-123635 RadioS
APMUKS(BJ) B025732.10-124826.9G TXS 0257-128 RadioS
NPM1G -12.0108 G [MSC2011] J025955.23-123634.4 G
LEDA 950361 G    
PKS B0257-128 RadioS    

COORDINATES for PKS 0257-128 (Back to INDEX)

Position Reference:1987AJ.....94..501K

Reference    Frame     Longitude    Latitude        RA           DEC      Uncertainty Ellipse (arcsec)
                       (degrees)   (degrees)                              Semimajor Semiminor  PA(deg)
Equatorial (B1950.0)   44.383808  -12.807542 02h57m32.114s -12d48m27.15s  7.50E-01  7.50E-01    0
Equatorial (J2000.0)   44.980297  -12.609561 02h59m55.271s -12d36m34.42s  7.50E-01  7.50E-01    0
Ecliptic   (B1950.0)   37.644762  -28.343267                              7.50E-01  7.50E-01    0
Ecliptic   (J2000.0)   38.345863  -28.338796                              7.50E-01  7.50E-01    0
Galactic              193.546314  -56.628348                              7.50E-01  7.50E-01    0
SuperGalactic         291.438977  -33.101575                              7.50E-01  7.50E-01    0
Additional detailed measurements with references are also available by clicking below:
11 Position data point(s)

REDSHIFT-INDEPENDENT DISTANCES for PKS 0257-128 (Back to INDEX)
 N/A 

CLASSIFICATIONS (TYPES, ATTRIBUTES) for PKS 0257-128 (Back to INDEX)
 N/A 

FOREGROUND GALACTIC EXTINCTION for PKS 0257-128 (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]0.2150.1800.1360.1070.0750.2100.1640.1130.0840.0630.0350.0220.0150.008
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]0.2730.2160.1660.1340.0970.2590.1900.1380.1050.0740.0450.0290.0180.008


Galactic Extinction based on H I Column Densities and Galaxy Counts
(Burstein & Heiles; 1982AJ.....87.1165B) assuming Rv = 3.1:
AB = 0.120 mag
See Notes on Galactic Extinction for important caveats.

BASIC DATA for PKS 0257-128 (Back to INDEX)
Helio. Radial Velocity     :     26001 +/-       45 km/s      
Redshift                   :  0.086730 +/- 0.000150        20096dF...C...0000J
Major Diameter (arcmin)    :  0.35
Minor Diameter (arcmin)    :  0.30
Magnitude and Filter       : 17.0 
Classifications            : N galaxy            

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:
3 Redshift data point(s)      32 photometric data point(s)      2 Diameter data point(s)      

QUANTITIES DERIVED FROM REDSHIFT for PKS 0257-128 (Details)(Back to INDEX)
Calculated and Corrected Velocities
V (Heliocentric)           :   26001 +/-     45 km/s      20096dF...C...0000J
V (Kinematic LSR)          :   25987 +/-     45 km/s      1986MNRAS.221.1023K
V (Galactocentric GSR)     :   25961 +/-     45 km/s      1991RC3.9.C...0000d
V (Local Group)            :   25988 +/-     45 km/s      1996AJ....111..794K
V (3K CMB)                 :   25815 +/-     47 km/s      1996ApJ...473..576F
V (Virgo Infall only)      :   25834 +/-     46 km/s      2000ApJ...529..786M
V (Virgo + GA only)        :   25701 +/-     47 km/s      2000ApJ...529..786M
V (Virgo + GA + Shapley)   :   25676 +/-     47 km/s      2000ApJ...529..786M

Hubble Flow Distance and Distance Modulus (where Ho =   73.0 +/-   5 km/sec/Mpc)
D (Galactocentric GSR)     :   355.6 +/-   24.9 Mpc      (m-M) = 37.75 +/- 0.15 mag
D (Local Group)            :   356.0 +/-   24.9 Mpc      (m-M) = 37.76 +/- 0.15 mag
D (3K CMB)                 :   353.6 +/-   24.8 Mpc      (m-M) = 37.74 +/- 0.15 mag
D (Virgo Infall only)      :   353.9 +/-   24.8 Mpc      (m-M) = 37.74 +/- 0.15 mag
D (Virgo + GA only)        :   352.1 +/-   24.7 Mpc      (m-M) = 37.73 +/- 0.15 mag
D (Virgo + GA + Shapley)   :   351.7 +/-   24.6 Mpc      (m-M) = 37.73 +/- 0.15 mag

Scale at Hubble Flow Distances
Scale (Galactocentric GSR) :    1724 pc/arcsec =  1.724 kpc/arcsec = 103.45 kpc/arcmin =   6.21 Mpc/degree
Scale (Local Group)        :    1726 pc/arcsec =  1.726 kpc/arcsec = 103.55 kpc/arcmin =   6.21 Mpc/degree
Scale (3K CMB)             :    1714 pc/arcsec =  1.714 kpc/arcsec = 102.87 kpc/arcmin =   6.17 Mpc/degree
Scale (Virgo Infall only)  :    1716 pc/arcsec =  1.716 kpc/arcsec = 102.94 kpc/arcmin =   6.18 Mpc/degree
Scale (Virgo + GA only)    :    1707 pc/arcsec =  1.707 kpc/arcsec = 102.41 kpc/arcmin =   6.14 Mpc/degree
Scale(Virgo + GA + Shapley):    1705 pc/arcsec =  1.705 kpc/arcsec = 102.31 kpc/arcmin =   6.14 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 = 0.977 arcmin and Selected Redshift, defined by the Velocity Range: from to km/sec where V(Heliocentric) = 26001 km/sec
Cosmology-Corrected Quantities [Ho = 73.00 km/sec/Mpc, Ωmatter = 0.27, Ωvacuum = 0.73] [Redshift 0.086109 as corrected to the Reference Frame defined by the 3K Microwave Background Radiation] Luminosity Distance : 377 Mpc (m-M) = 37.88 mag Angular-Size Distance : 320 Mpc (m-M) = 37.52 mag Co-Moving Radial Distance : 347 Mpc (m-M) = 37.70 mag Co-Moving Tangential Dist. : 347 Mpc (m-M) = 37.70 mag Co-Moving Volume : 0.176 Gpc^3 Light Travel-Time : 1.087 Gyr Age at Redshift 0.086109 : 12.212 Gyr Age of Universe : 13.299 Gyr Scale (Cosmology Corrected): 1550 pc/arcsec = 1.550 kpc/arcsec = 93.03 kpc/arcmin = 5.58 Mpc/degree Surface Brightness Dimming : Flux Density per Unit Area = 0.71863; Magnitude per Unit Area = 0.3587 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 0257-128 (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)]
UltravioletNUV (GALEX) AB 20.5206 +/- 0.154151 mag 2012GASC..C...0000S-17.36 +/- 0.52 [mag] 1.29E+09 +/- 3.15E+08
Visualb_J 17.02 +/- 0.12 mag 1990MNRAS.243..692M-20.86 +/- 0.51 [mag] 1.75E+10 +/- 4.04E+09
Near-InfraredH 12.435 +/- 0.065 mag 20032MASX.C.......:-25.45 +/- 0.50 [mag] 8.79E+10 +/- 1.84E+10
Radio74 MHz (VLA) 2.33 +/- 0.27 Jy 2007AJ....134.1245C 2.93E+33 +/- 6.77E+32 [W] 7.62E+06 +/- 1.76E+06
NOTE: The above quantities are derived using a Distance Modulus of 37.88 mag corresponding to
a Luminosity Distance of 377.2 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 32 Photometric data point(s) available in NED.

QUICK-LOOK ANGULAR & PHYSICAL DIAMETERS for PKS 0257-128 (Back to INDEX)

The largest diameters in the Visual and Near-Infrared spectral regions, when available:

Passband Apparent Major Axis
(2a) [arcsec]
Apparent Minor Axis
(2b) [arcsec]
PA
[degrees]
(J2000.0)
Reference Level RefcodePhysical Major Axis
(2a) [kpc]
Physical Minor Axis
(2b) [kpc]
K_s (2MASS "total") 37.3027.60145 Diameter for "total" magnitude 20032MASX.C.......:20032MASX.C.......:63.6047.07
NOTE: At z <= 0.5, physical diameters are derived using a Scale at the Hubble Flow Distance (Virgo + GA + Shapley) of 1.705 kpc/arcsec.
The quantities quoted above have not necessarily been corrected for foreground extinction.

View details for 2 Diameter data point(s) available in NED.

EXTERNAL ARCHIVES AND SERVICES for PKS 0257-128 Help (Back to INDEX)
Resources for Object NamesSite/Service
Query SIMBAD by primary NED object name -- PKS 0257-128SIMBAD (CDS, Strasbourg, France)
2MASS Extended Source Images (JHKs) -- 2MASX J02595532-1236348 NASA/IPAC Infrared Science Archive (IRSA)
Query 6dF Galaxy Redshift Survey -- 6dF J0259552-123635 6dF Galaxy Redshift Survey
Query 6dF Galaxy Redshift Survey -- 6dF J0259553-123635 6dF Galaxy Redshift Survey
Parkes Radio Sources Catalogue -- PKS B0257-128 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Parkes-MIT-NRAO 4.85GHz Surveys -- PMN J0259-1236 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
NRAO/VLA Sky Survey (NVSS)
Texas Survey of radio sources at 365MHz -- TXS 0257-128 VizieR Catalog Query (U.S. mirror, CfA/Harvard)
Retrieve mean data from LEDA -- PGC 950361 The Lyon/Meudon Extragalactic Database (LEDA)
Query GALEX (NUV/FUV) Mission Archive (7.2 arcsec search radius) -- PKS 0257-128GALEX Mission Data Archive at MAST
Explore IRSA resources with RADAR (10 arcsec search radius) -- PKS 0257-128NASA/IPAC Infrared Science Archive (IRSA)
Resources for position 02h59m55.3s, -12d36m34s (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





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