1206.2645 (Mattia Fumagalli et al.)

Halpha Equivalent Widths from the 3D-HST survey: evolution with redshift and dependence on stellar mass    [PDF]

Mattia Fumagalli, Shannon Patel, Marijn Franx, Gabriel Brammer, Pieter van Dokkum, Elisabete da Cunha, Mariska Kriek, Britt Lundgren, Ivelina Momcheva, Hans-Walter Rix, Kasper B. Schmidt, Rosalind E. Skelton, Katherine E. Whitaker, Ivo Labbe, Erica Nelson

We investigate the evolution of the Halpha equivalent width, EW(Halpha), with redshift and its dependence on stellar mass, taking advantage of the first data from the 3D-HST survey, a large spectroscopic Treasury program with the Hubble Space Telescope WFC3. Combining our Halpha measurements of 854 galaxies at 0.8View original: http://arxiv.org/abs/1206.2645