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THE RELATION BETWEEN GALAXY STRUCTURE AND SPECTRAL TYPE: IMPLICATIONS FOR THE BUILDUP OF THE QUIESCENT GALAXY POPULATION AT 0.5 < z < 2.0

  • Authors: Michael Yano, Mariska Kriek, Arjen van der Wel, and Katherine E. Whitaker

2016 The Astrophysical Journal Letters 817 L21.

  • Provider: AAS Journals

Caption: Figure 4.

Re at 5 × 1010 M vs. redshift. The samples belonging to each SED type are split into three redshift bins, the symbol size represents the number of galaxies in each datapoint, and the color coding reflects the average sSFR. Post-starburst SED types are indicated by the black crosses. We do not show vertical error bars for datapoints that contain only one galaxy. The lines are the best-fit relations for quiescent (sSFR ﹩\;\lt \;{10}^{-11}\;{\mathrm{yr}}^{-1}﹩) and star-forming (sSFR ﹩\;\gt \;{10}^{-11}\;{\mathrm{yr}}^{-1}﹩) galaxies by van der Wel et al. (2014) for the same stellar mass. At all redshifts, star-forming galaxies are larger than quiescent galaxies, and both populations increase in size over cosmic time.

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