Galaxy Zoo : the dependence of the star formation-stellar mass relation on spiral disk morphology
Willett, Kyle W., Schawinski, Kevin, Simmons, Brooke D., Masters, Karen L., Skibba, Ramin A., Kaviraj, Sugata, Melvin, Thomas, Wong, O. Ivy, Nichol, Robert C., Cheung, Edmond, Lintott, Chris J. and Fortson, Lucy
(2015)
Galaxy Zoo : the dependence of the star formation-stellar mass relation on spiral disk morphology.
Monthly Notices of the Royal Astronomical Society (MNRAS).
ISSN 0035-8711
We measure the stellar mass-star formation rate relation in star-forming disk galaxies at z1. Of the galaxies lying significantly above the M-SFR relation in the local Universe, more than 50% are mergers. We interpret this as evidence that the spiral arms, which are imperfect reflections of the galaxy's current gravitational potential, are either fully independent of the various quenching mechanisms or are completely overwhelmed by the combination of outflows and feedback. The arrangement of the star formation can be changed, but the system as a whole regulates itself even in the presence of strong dynamical forcing.
Item Type | Article |
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Identification Number | 10.1093/mnras/stv307 |
Additional information | © 2015 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. Code and data are available at https://github.com/willettk/gzmainsequence |
Keywords | astro-ph.ga |
Date Deposited | 15 May 2025 14:16 |
Last Modified | 15 Sep 2025 00:26 |
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