Galaxy Zoo Starburst Talk

Intense central bulge

  • AGF25 by AGF25

    This galaxy has a very defined central bulge. Is this a coincidence of a superposition of a star in front of a far distant galaxy? Why is the central bulge so much brighter and so much more contrasted than the rest of the disc? Thanks for any comments.

    Posted

  • JeanTate by JeanTate

    I think this is partly due to low resolution and color contrast - we can check this out when the multi-wavelength viewer becomes available - and partly real. The spectrum looks - to my eye - just like that of a typical bulge, with some trace of star-formation (the emission lines):

    enter image description here

    I myself am not all that familiar with the spectra of individual stars, but this doesn't look like one of those.

    Posted