Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology

Kyle W. Willett; Kevin Schawinski; Brooke D. Simmons; Karen L. Masters; Ramin A. Skibba; Sugata Kaviraj; Thomas Melvin; O. Ivy Wong; Robert C. Nichol; Edmond Cheung; Chris J. Lintott; Lucy Fortson

doi:10.1093/mnras/stv307

Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology

Kyle W. Willett, Kevin Schawinski, Brooke D. Simmons, Karen L. Masters, Ramin A. Skibba, Sugata Kaviraj, Thomas Melvin, O. Ivy Wong, Robert C. Nichol, Edmond Cheung, Chris J. Lintott, Lucy Fortson

Institute of Cosmology & Gravitation

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Abstract

We measure the stellar mass-star formation rate relation in star-forming disk galaxies at z 1. 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.

Original language	English
Pages (from-to)	820-827
Journal	Monthly Notices of the Royal Astronomical Society
Volume	449
Issue number	1
Early online date	19 Mar 2015
DOIs	https://doi.org/10.1093/mnras/stv307
Publication status	Published - 1 May 2015

Keywords

astro-ph.GA
RCUK
STFC
ST/M001156/1

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This article has been accepted for publication in 'Monthly notices of the Royal Astronomical Society ©: 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Willett, K. W., Schawinski, K., Simmons, B. D., Masters, K. L., Skibba, R. A., Kaviraj, S., Melvin, T., Wong, O. I., Nichol, R. C., Cheung, E., Lintott, C. J., & Fortson, L. (2015). Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology. Monthly Notices of the Royal Astronomical Society, 449(1), 820-827. https://doi.org/10.1093/mnras/stv307

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title = "Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology",

abstract = "We measure the stellar mass-star formation rate relation in star-forming disk galaxies at z 1. 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.",

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author = "Willett, {Kyle W.} and Kevin Schawinski and Simmons, {Brooke D.} and Masters, {Karen L.} and Skibba, {Ramin A.} and Sugata Kaviraj and Thomas Melvin and Wong, {O. Ivy} and Nichol, {Robert C.} and Edmond Cheung and Lintott, {Chris J.} and Lucy Fortson",

note = "This article has been accepted for publication in 'Monthly notices of the Royal Astronomical Society {\textcopyright}: 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. Code and data are available at https://github.com/willettk/gzmainsequence",

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month = may,

day = "1",

doi = "10.1093/mnras/stv307",

language = "English",

volume = "449",

pages = "820--827",

journal = "Monthly Notices of the Royal Astronomical Society",

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Willett, KW, Schawinski, K, Simmons, BD, Masters, KL, Skibba, RA, Kaviraj, S, Melvin, T, Wong, OI, Nichol, RC, Cheung, E, Lintott, CJ & Fortson, L 2015, 'Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology', Monthly Notices of the Royal Astronomical Society, vol. 449, no. 1, pp. 820-827. https://doi.org/10.1093/mnras/stv307

TY - JOUR

T1 - Galaxy Zoo

T2 - the dependence of the star formation-stellar mass relation on spiral disk morphology

AU - Willett, Kyle W.

AU - Schawinski, Kevin

AU - Simmons, Brooke D.

AU - Masters, Karen L.

AU - Skibba, Ramin A.

AU - Kaviraj, Sugata

AU - Melvin, Thomas

AU - Wong, O. Ivy

AU - Nichol, Robert C.

AU - Cheung, Edmond

AU - Lintott, Chris J.

AU - Fortson, Lucy

N1 - This article has been accepted for publication in 'Monthly notices of the Royal Astronomical Society ©: 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. Code and data are available at https://github.com/willettk/gzmainsequence

PY - 2015/5/1

Y1 - 2015/5/1

N2 - We measure the stellar mass-star formation rate relation in star-forming disk galaxies at z 1. 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.

AB - We measure the stellar mass-star formation rate relation in star-forming disk galaxies at z 1. 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.

KW - astro-ph.GA

KW - RCUK

KW - STFC

KW - ST/M001156/1

U2 - 10.1093/mnras/stv307

DO - 10.1093/mnras/stv307

M3 - Article

SN - 0035-8711

VL - 449

SP - 820

EP - 827

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

Galaxy Zoo: the dependence of the star formation-stellar mass relation on spiral disk morphology

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Keywords

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