Galaxy Zoo Talk

AGN?

  • JeanTate by JeanTate

    Rather intense color in the center, rather odd colors around it (kinda yellow/green; fainter parts of most UKIDSS galaxies are blue, aren't they?), hint of a (vertical) plume/spike ... points to a strong central PSF-like source?

    In SDSS (DR8) it looks pretty unexceptional, though the center is rather bright:

    enter image description here

    Perhaps the spectrum gives a clue? It has strong Ha, [NII], [SII], and [OII] emission lines, but the [OIII] and Hb are weak to absent (as emission lines). So it's not possible to see where the nucleus is, in a BPT diagram. The continuum is pretty flat red-ward of Hb, and declines rather rapidly towards the blue: a sign of lots of dust?

    What do you think?

    Posted