Galaxy Zoo Talk

Starburst and starforming

  • ratprincess by ratprincess

    How do I differentiate the two?


  • Budgieye by Budgieye moderator

    I had to look that up

    STARFORMING: set based on whether the galaxy has detectable emission lines that are consistent with star-formation according to the criteria:

    log10(OIII/Hβ) < 0.7 - 1.2(log10(NII/Hα) + 0.4)

    STARBURST: set if the galaxy is star-forming but has an equivalent width of Hα greater than 50 Å