Is a foreground star likely to be the cause of radio blobs

• by Tobend

  such as these which have no clearly identifiable associated IR source? If not what is the most probable explanation and the best tag to choose?

  Posted January 29, 2014 6:06 PM

• by JeanTate in response to Tobend's comment.

  You see the fairly bright IR source, about mid-way between the two radio sources? I think that may the core/host, and the two radio sources are a #doublelobe.

  That IR source is at the same location (or very close to it) as SDSS J085538.53+425704.5, which the SDSS photometric pipeline classifies as GALAXY, with a z_ph of ~0.51

  Hope this helps!

  Posted January 29, 2014 7:49 PM

• by Tobend in response to JeanTate's comment.

  Thanks Jean, it's. Always good to hear someone else's thoughts. Whenever I see small weak radio lobes with only one or two contours I start to wonder about artefacts. That, together with all the possibilities for chance alignments and the effects of perspective and relativistic boosting to consider, could make one start to see double lobes all over the place! 😃

  Posted January 31, 2014 4:27 PM

• by akapinska scientist in response to Tobend's comment.

  and to answer the first question of yours whether a star can be the cause for the radio blobs: No. 😃

  Posted February 2, 2014 8:24 AM