by arianna99

About 12 Images before this one in the series I was tagging, I came across an image containing 121 black holes in both the radio and infrared frequencies. I clicked on favorite and then tried to discuss it, but it wouldn't allow me to go back again when the favorite button was clicked, (it wouldn't unclick either). Since doing this research, I have seen two other images containing an unusually high amount of black holes, and on both, the holes appear to be on the outside of the outer skin of a very vast "energy bubble." On one previous similar image, the large amount of black holes were all actually curving around the edge field of the large "energy bubble" in a very apparent manner.

Posted March 20, 2015 3:20 PM

by akapinska scientist in response to arianna99's comment.

Hi @arianna99,
it is very much impossible to have 121 black holes in such a small cutout image marked by contours given our sensitivity. Were they all separate small contours? If there are no contours then disregard the blue "bumps" in the image as it is just noise that is always present in our images. If there were contours, for example looking like this:
http://radiotalk.galaxyzoo.org/#/subjects/ARG00033s9
or
http://radiotalk.galaxyzoo.org/#/subjects/ARG0003jln
then it is also noise but specifically coming from a strong radio source nearby and really these are #artifacts from data processing (though in the second link the central brightest radio source is actually real). We always try to calibrate data as well as possible to remove these artifacts, but sometimes it is just not possible.

Have a look also at this discussion:
http://radiotalk.galaxyzoo.org/#/boards/BRG0000005/discussions/DRG0000006

Hope that helps!

anna

Posted March 22, 2015 7:03 AM