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Hα Equivalent widths from the 3D-HST survey: evolution with redshift and dependence on stellar mass

Fumagalli, Mattia; Patel, Shannon; Franx, Marijn; Brammer, Gabriel; van Dokkum, P.G.; da Cunha, Elisabete; Kriek, Mariska; Lundgren, Britt; Momcheva, Ivelina; Rix, Hans-Walter; Schmidt, Kasper B

Description

We investigate the evolution of the Hα equivalent width, EW(Hα), with redshift and its dependence on stellar mass, using the first data from the 3D-HST survey, a large spectroscopic Treasury program with the Hubble Space Telescope Wide Field Camera 3. Combining our Hα measurements of 854 galaxies at 0.8 < z < 1.5 with those of ground-based surveys at lower and higher redshift, we can consistently determine the evolution of the EW(Hα) distribution from z = 0 to z = 2.2. We find that at all...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/153610
Source: Astrophysical Journal Letters
DOI: 10.1088/2041-8205/757/2/L22

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