%0 Journal Article
%T Confirmation of Small Dynamical and Stellar Masses for Extreme Emission Line Galaxies at z~2
%A Michael V. Maseda
%A Arjen van der Wel
%A Elisabete da Cunha
%A Hans-Walter Rix
%A Camilla Pacifici
%A Ivelina Momcheva
%A Gabriel B. Brammer
%A Marijn Franx
%A Pieter van Dokkum
%A Eric F. Bell
%A Mattia Fumagalli
%A Norman A. Grogin
%A Dale D. Kocevski
%A Anton M. Koekemoer
%A Britt F. Lundgren
%A Danilo Marchesini
%A Erica J. Nelson
%A Shannon G. Patel
%A Rosalind E. Skelton
%A Amber N. Straughn
%A Jonathan R. Trump
%A Benjamin J. Weiner
%A Katherine E. Whitaker
%A Stijn Wuyts
%J Physics
%D 2013
%I arXiv
%R 10.1088/2041-8205/778/1/L22
%X Spectroscopic observations from the Large Binocular Telescope and the Very Large Telescope reveal kinematically narrow lines (~50 km/s) for a sample of 14 Extreme Emission Line Galaxies (EELGs) at redshifts 1.4 < z < 2.3. These measurements imply that the total dynamical masses of these systems are low (< 3x10^9 M_sun). Their large [O III] 5007 equivalent widths (500-1100 Angstroms) and faint blue continuum emission imply young ages of 10-100 Myr and stellar masses of 10^8-10^9 M_sun, confirming the presence of a violent starburst. The dynamical masses represent the first such determinations for low-mass galaxies at z > 1. The stellar mass formed in this vigorous starburst phase represents a large fraction of the total (dynamical) mass, without a significantly massive underlying population of older stars. The occurrence of such intense events in shallow potentials strongly suggests that supernova-driven winds must be of critical importance in the subsequent evolution of these systems.
%U http://arxiv.org/abs/1310.6358v1