Radio Galaxy Zoo Talk

ARG0002s9v - strange, isolated concetration of galaxies ...

  • JeanTate by JeanTate

    ... around the host of the #triple in the NW, zsp 0.223 SDSS J100900.08+132254.4:

    enter image description here


  • leonie_van_vliet by leonie_van_vliet

    Could this concentration drifted or speeded off from a distant larger group? Or even lack of gravitational pull from other galaxy clusters I wonder, ending up as close knit group by strong host or other unseen force.

    Marvelous this WEB where there are thinner threads & hubs "nearby" or not, in the ocean of the Universe! ☺️


  • JeanTate by JeanTate in response to leonie_van_vliet's comment.

    The tight-knot group seems to have companions, galaxies with similar redshifts nearby, so it may be in a (not too rich) galaxy cluster. And it may also be near the center of such a cluster (I haven't looked at all closely). If so, then it would be near the centre of the 'gravity well' of the cluster. And if the various galaxies in the clump are physically close (and not just close by projection), they may be interacting. Perhaps they 'fell' into the center?

    That's a lot of 'maybes', 'mays', and 'ifs'! πŸ˜ƒ


  • ivywong by ivywong scientist, admin

    A cluster at z~0.35 with a few foreground galaxies thrown in πŸ˜‰