ARG0003lhy - Possible large radio galaxy? large field image

• by Dolorous_Edd

  FIRST survey

  http://third.ucllnl.org/cgi-bin/firstimage?RA=08 23 16.80 %2B03 36 00.0&Dec=&Equinox=J2000&ImageSize=20&MaxInt=10

  First image is NVSS survey ( image size degrees = 0.5 ) Second is VLA FIRST (1.4Ghz) survey ( image size degrees = 0.11 )

  
  

  Coordinates of the suspected source RA / DEC ~ 08 23 12.82 +03 33 07.9

  NASA/IPAC EXTRAGALACTIC DATABASE search result within 1 arcmin

  http://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Near+Position+Search&in_csys=Equatorial&in_equinox=J2000.0&lon=08+23+12.82+&lat=%2B03+33+07.9&radius=1.0&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&z_constraint=Unconstrained&z_value1=&z_value2=&z_unit=z&ot_include=ANY&nmp_op=ANY&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=Distance+to+search+center&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES

  Probably this one

  http://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Obj_id&objid=6501083&objname=1&img_stamp=YES&hconst=73.0&omegam=0.27&omegav=0.73&corr_z=1

  http://skyservice.pha.jhu.edu/DR9/ImgCutout/getjpeg.aspx?ra=125.803806&dec=3.550383&scale=0.1&width=512&height=512&opt=&query=

  

  PGC 1254333, I know I am jumping to a conclusion here, but who knows?

  Posted December 26, 2013 7:28 AM

• by DocR scientist

  Spectacular source @Dolorous Edd! This is a #giant #wat , as best I can tell, never before recognized.

  You have the correct optical identification in the SDSS picture above, although I couldn't find the PGC designation. The source is SDSS J082312.91+033301.3 and doesn't appear to have a common name. The (photometric) redshift in SDSS is 0.12 , but there's a warning about the colors. An alternative might be .085 from galaxies which may be in the surrounding cluster. Following is an image matching up NVSS and FIRST . If you take the unfolded length, it is either 1.22 Mpc (4 Million light years!) or 1.72 Mpc (5.6 million light years!), depending on which redshift you use.

  

  image at http://umn.edu/~larry/RGZ/ARG0003lhy.png

  Posted December 26, 2013 2:39 PM

• by DocR scientist

  Here's a smaller copy of the above image. NVSS on left, FIRST on right, ID circled.

  Posted December 26, 2013 2:46 PM

• by antikodon

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003lfa

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003li2

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003lro

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003lom

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003li7

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003lkw

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003lrn

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003ls9

  Posted January 26, 2014 8:40 AM