New style data

• by Ptd

  http://radiotalk.galaxyzoo.org/#/subjects/ARG0003s9p
  Have picked this one just as an example.

  I'm having trouble classifying this new style Radio and IR data from the southern hemisphere. All I seem to find in the Radio part of it are N/S elongated compacts and weak splotches that don't seem strong enough to be significant. I don't seem to be coming across obvious hourglasses and triples like you do in FIRST

  Conversely the IR part seems more pinsharp than the WISE images, with many more well defined sources, so many in fact that it seems that any of the Radio sources are bound to have at least one within their contours. Are those IR sources galaxies, stars or both?

  I'd like a bit of guidance on how to classify these please?

  Posted February 1, 2015 3:39 PM

• by ivywong scientist, admin

  Hi @Ptd,

  Yes, the latest ATLAS data has a different "feel" to the FIRST images due in part to the elongated beamshape. Also, the more sensitive and higher resolution IR counterparts to these ATLAS images also present more host galaxy "options". However, this will mean that we will be able to pinpoint more accurately which is the real host galaxy for the observed radio emission. If you would like to see what the IR looks like at poorer resolution and lower sensitivities, you can also click on the "WISE" link to see what the field looks like in WISE.

  Alternatively, if the source is further south than -30 deg, you may be able to find another image from the SUMSS survey via the following link: http://www.astrop.physics.usyd.edu.au/cgi-bin/postage.pl

  By the way, you have seen an ATLAS hourglass before. Do you remember the tutorial hourglass image? That subject comes from the ATLAS data. However, 99% of the subjects (with the exception of ~ 2k subjects) come from FIRST so relative to the FIRST subjects, you will not see as many ATLAS subjects.

  We have written 2 blogs to help provide some guidance:
  http://blog.galaxyzoo.org/2015/01/15/new-atlas-images-for-radio-galaxy-zoo/
  http://blog.galaxyzoo.org/2015/01/22/atlas-data-and-radio-galaxy-zoo-more-details/

  I hope that this is helpful. Happy hunting!

  http://radiotalk.galaxyzoo.org/#/boards/BRG0000008/discussions/DRG00009s9
  http://radiotalk.galaxyzoo.org/#/boards/BRG0000005/discussions/DRG00009ux

  Posted February 2, 2015 7:15 AM

• by JeanTate in response to ivywong's comment.

  Good explanation, thanks Ivy.

  Some of your links don't work; I've had a go at fixing them:

  We have written 2 blogs to help provide some guidance: http://blog.galaxyzoo.org/2015/01/15/new-atlas-images-for-radio-galaxy-zoo/ http://blog.galaxyzoo.org/2015/01/22/atlas-data-and-radio-galaxy-zoo-more-details/

  The two blog posts are New ATLAS images for Radio Galaxy Zoo and ATLAS data and Radio Galaxy Zoo: more details

  http://radiotalk.galaxyzoo.org/#/boards/BRG0000008/discussions/DRG00009s9 http://radiotalk.galaxyzoo.org/#/boards/BRG0000005/discussions/DRG00009ux

  These are the RGZ Talk threads New ATLAS data! and How to classify this? Can we have some sort of guide to ATLAS/SWIRE please?

  Posted February 2, 2015 1:10 PM

• by ivywong scientist, admin

  Oops. Thanks heaps @JeanTate for fixing the links.

  Posted February 6, 2015 7:14 AM