Radio Galaxy Zoo Talk

Restarted radio galaxies

  • Dolorous_Edd by Dolorous_Edd

    Thread to list and sort all restarted radio galaxies found in RGZ.

    antikodon has great collection of these

    https://radiotalk.galaxyzoo.org/#/collections/CRGS0000b0

    also sisifolibre

    https://radiotalk.galaxyzoo.org/#/collections/CRGS00011z

    also mine

    https://radiotalk.galaxyzoo.org/#/collections/CRGS0000uk

    Tag group collection

    https://radiotalk.galaxyzoo.org/#/collections/CRGL00000o

    Posted

  • leonie_van_vliet by leonie_van_vliet

    Hello Ivan,
    Not want to just copy a comment given by you guys what does "restarted" mean in radio-galaxies do they fire up again in radio?
    Clueless even after seeing collections.

    Leonie_van_Vliet

    Posted

  • ivywong by ivywong scientist, admin

    A radio galaxy is called a "restarted" radio galaxy if we happen to see multiple radio jet components which are associated to multiple episodes of jet production (as opposed to a single continuous stream of emission).

    Typically, we can only confirm/verify if a radio galaxy is restarted once we have examined the spectral indices or radio "colours" of the individual components and obtained observations from different interferometric array configurations to ensure that the multiple knots that we see are truly originating from a new episode of jet activity. So for now, I assume that Ivan is putting together the candidate list of radio galaxies with multiple radio components.

    @Ivan, please feel free to correct me if any of this is wrong.

    Posted