ARG0003hbt - x-ray crystalography!

• by JeanTate

  Per the FIRST image, the very radio bright source at the bottom left (SE) has made a huge splash, making it look like an x-ray crystallography image! 😮

  

  And NVSS shows that this is really the only source:

  

  So what is it?

  Near as I can tell, it coincides with a faint - but definitely not noise! - IR source at ~(322.637, 5.0375), which is close to (within the relevant error bars?) an exceedingly faint SDSS 'STAR', SDSS J213032.92+050213.1, one which is essentially noise in the u' and g' bands, and brightest in the z' band ... just what you'd expect of a high-z object!

  SDSS field centered on this super-faint object:

  

  Posted January 8, 2014 7:42 PM

• by DocR scientist

  This is a well studied Parkes redshift 1 galaxy, as per NED.
  http://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Near+Position+Search&in_csys=Equatorial&in_equinox=J2000.0&lon=21+30+32.887&lat=5+02+17.7&radius=2.0&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

  Posted January 9, 2014 1:48 AM

• by JeanTate in response to DocR's comment.

  Thanks!

  RGZ is a real blast, especially when it comes to things like this: such a bright radio source, sure to have been studied before (I'll know to check NED from now on), and yet I was able to find a possible optical source using nothing more than the SDSS tools (Navigate, Explore) and the WISE images (plus their tools). It's even better when the result of my few minutes' of sleuthing turns out to be spot on (so to speak)! 😄

  Posted January 9, 2014 11:20 AM