HST /WFC3 CONFIRMATION OF THE INSIDE-OUT GROWTH OF MASSIVE GALAXIES AT 0 < z < 2 AND IDENTIFICATION OF THEIR STAR-FORMING PROGENITORS AT z ∼ 3

We study the structural evolution of massive galaxies by linking progenitors and descendants at a constant cumulative number density of n[subc] = 1.4 x 10[sup -4] Mpc[sup -3] to z ~ 3. Structural parameters were measured by fitting Sersic profiles to high-resolution CANDELS HST WFC3 J[sub 125] and H...

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Bibliographic Details
Published in:The Astrophysical journal 2013-03, Vol.766 (1), p.1-13
Main Authors: Patel, Shannon G, van Dokkum, Pieter G, Franx, Marijn, Quadri, Ryan F, Muzzin, Adam, Marchesini, Danilo, Williams, Rik J, Holden, Bradford P, STEFANON, MAURO
Format: Article
Language:English
Subjects:
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
COLOR
Constants
DENSITY
DIAGRAMS
GALACTIC EVOLUTION
GALAXIES
GROWTH
Imaging
MASS
Progenitors (astrophysics)
RED SHIFT
RESOLUTION
STARS
WAVELENGTHS
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Summary:We study the structural evolution of massive galaxies by linking progenitors and descendants at a constant cumulative number density of n[subc] = 1.4 x 10[sup -4] Mpc[sup -3] to z ~ 3. Structural parameters were measured by fitting Sersic profiles to high-resolution CANDELS HST WFC3 J[sub 125] and H[sub 160] imaging in the UKIDSS-UDS at 1 < z < 3 and ACS I[sub 814] imaging in COSMOS at 0.25 < z < 1. At a given redshift, we selected the HST band that most closely samples a common rest-frame wavelength so as to minimize systematics from color gradients in galaxies. Toward lower redshifts, these galaxies continued to assemble mass at larger radii and became the local ellipticals that dominate the high-mass end of the mass function at the present epoch.
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/766/1/15