Evolution in the continuum morphological properties of Lyα-emitting galaxies from z = 3.1 to z = 2.1

BOND, NICHOLAS A.; GAWISER, ERIC; GUAITA, LUCIA; PADILLA, NELSON; GRONWALL, CARYL; CIARDULLO, ROBIN; LAI, KAMSON

ASTROPHYSICAL JOURNAL

IOP PUBLISHING LTD

Año: 2012 vol. 753

0004-637X

We present a rest-frame ultraviolet morphological analysis of 108 z ≃ 2.1 Lyα emitters (LAEs) in the Extended Chandra Deep Field South and compare it to a similar sample of 171 LAEs at z ≃ 3.1. Using Hubble Space Telescope images from the Galaxy Evolution from Morphology and SEDs survey, Great Observatories Origins Deep Survey, and Hubble Ultradeep Field, we measure size and photometric component distributions, where photometric components are defined as distinct clumps of UV-continuum emission. At both redshifts, >80% of LAEs have observed half-light radii