Flux data

Available Data Downloads

Images, Maps, Spectra and SEDs

link to NED page

Infrared data

Radio data

Optical data

X-Ray data

Spitzer 70um DataPKS0252-71_files/0252_70um.fits
Spitzer 160um DataPKS0252-71_files/0252_160um.fits
ESO Optical spectraPKS0252-71_files/

Spitzer IRS spectra


PKS 0252-712 at 2291 MHz from the SHEVE array. The peak level is 1.14 Jy/beam and contours are shown at -1.5, 1.5, 3, 6, 12, 24, 36, 48, 72, 96% of the peak.

Tziomis et al. (2002)


Optical spectrum taken with ESO telescopes.

Tadhunter et al. (1993)


Spitzer IRS spectra

Dicken et al. (in preperation)

Spitzer 24um DataPKS0252-71_files/0252_24um.fits


Spitzer MIPS infrared photometric observations. Left to right: 24 microns, 70 microns and 160 microns (when available). FOV are 5x5 arcmins for 24 microns, 5x2.5 arcmins for 70 microns and 0.5x5 arcmins for 160 microns.

Dicken et al. (2008)

Next objectPKS0255+05.html
Frequency       Flux      Units	                Reference                
5GHz	         1.58	      Jy                        Morganti et al. (1993)[OIII] λ5007      -14.98       Log erg/cm2/s    Tadhunter et al. (1993) 
15GHz core	  -            mJy        	        Dicken et al. (2008)
22 GHz core	  -            mJy	                 Dicken et al. (2008)
24 microns	2.9	       mJy	                 Dicken et al. (2008)
70 microns	9.1          mJy	                 Dicken et al. (2008)
160 microns	37.4        mJy	                 Dicken et al. (2008)
X-ray            	-	        -	                 -

Other name:


RA (j2000):

Dec (j2000):

Optical class:

Radio Class:


02 52 46.28

-71 04 35.9





    Contamination of images and spectra by a foreground star preclude detailed study of the optical continuum in this NLRG/CSS radio galaxy. The optical spectrum shows high-ionization emission lines (Tadhunter et al. 1993). Details of the ionization and kinematics of the emission line gas in this source are discussed in Holt et al. (2008, MNRAS, 387, 639) and Holt et al. (2009, MNRAS, 400, 589) respectively.

    In deep optical images PKS 0252−71 appears to be surrounded by an amorphous halo which points towards a fainter companion galaxy at ∼33 kpc to the south, thus indicating a possible interaction between the galaxies (Ramos Almeida et al. 2011a, Fig. B43). The images confirm that the bright object ∼3 arcsec to the SE of the radio galaxy host is a star. Unfortunately, the relatively poor seeing of this image (FWHM = 1 arcsec) prevents a clear detection of other possible signs of disturbance.

Gemini imagePKS0252-71_files/pks0252_stamp.fits

Gemini/GMOS-S: median filtered image



Spectral energy distribution.  The blue solid line is fitted to the data from 109 to 1010 Hz. Extrapolating this line from the radio to the infrared SED tests whether non-thermal synchrotron emission from the lobes can contaminate the Spitzer mid-infrared flux. In this case the lobes emission lies out of the Spitzer beam so cannot contaminate the Spitzer data.  The weak, flat spectrum, non-thermal radio core emission is also not likely to contaminate the Spitzer infrared flux data for this object.

Dicken et al. (2008)