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Open AccessJournal ArticleDOI

Structural and Star-forming Relations since z similar to 3: Connecting Compact Star-forming and Quiescent Galaxies

TLDR
In this article, the authors study the evolution of scaling relations that compare the effective density (Sigma(e), r 9.6 -9.3M(circle dot) kpc(-2), allowing the most efficient identification of compact SFGs and quiescent galaxies at every redshift.
Abstract
We study the evolution of the scaling relations that compare the effective density (Sigma(e), r 9.6 -9.3M(circle dot) kpc(-2), allowing the most efficient identification of compact SFGs and quiescent galaxies at every redshift.

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Improving galaxy morphologies for SDSS with Deep Learning

TL;DR: A morphological catalogue for 670,000 galaxies in the Sloan Digital Sky Survey in two flavours: T-Type, related to the Hubble sequence, and Galaxy Zoo 2 (GZ2 hereafter) classification scheme, provided by combining accurate existing visual classification catalogues with machine learning.
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Star formation is boosted (and quenched) from the inside-out: radial star formation profiles from MaNGA

TL;DR: In this paper, the authors investigated the SFR profiles of 864 galaxies as a function of their position relative to the global star forming main sequence (Delta SFR), and found that for quiescent/passive galaxies that lie at least a factor of 10 below the global main sequence, there is an analogous deficit of star formation throughout the galaxy with the lowest values of Delta Sigma_SFR in the central 3 kpc.
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Morphology and star formation in IllustrisTNG: the build-up of spheroids and discs

TL;DR: In this paper, a kinematical decomposition of the stellar component into a spheroidal and a disc component (spheroid-to-total ratio, S/T) and the concentration of stellar mass density profile (C_{82}$) was proposed to quantify the relationship between galaxy morphology and star formation.
References
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Journal ArticleDOI

What Do We Learn from IRAC Observations of Galaxies at 2 < z < 3.5?

TL;DR: In this article, very deep HST, VLT, and Spitzer photometry of galaxies at 2 2 galaxies was analyzed and it was shown that the estimated distributions of these properties do not change significantly when IRAC data are added to the UBVIJHK photometry.
Journal ArticleDOI

THE NUMBER DENSITY AND MASS DENSITY OF STAR-FORMING AND QUIESCENT GALAXIES AT 0.4 ⩽ z ⩽ 2.2

TL;DR: In this article, the authors study the buildup of the bimodal galaxy population using the NEWFIRM Medium-Band Survey, which provides excellent redshifts and well-sampled spectral energy distributions of {approx}27, 000 galaxies with K 3 x 10{sup 10} M{sub sun} increases by a factor of {approximately}10 from z − 2 to the present day, whereas the mass density in star-forming galaxies is flat or decreases over the same time period.
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Star formation and dust obscuration at z~2: galaxies at the dawn of downsizing

TL;DR: In this article, the authors used a sample of BzK-selected star-forming galaxies, drawn from the COSMOS survey, to perform stacking analysis of their 1.4 GHz radio continuum as a function of different stellar population properties, after removing AGN contaminants from the sample.
Journal ArticleDOI

Bulge Formation by the Coalescence of Giant Clumps in Primordial Disk Galaxies

TL;DR: In this article, the authors studied the properties of the bulges formed by the supernova feedback in the early universe and found that they are all thick, slowly rotating, and have a high Sersic index, like classical bulges.
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