Please note that eDoc will be permanently shut down in the first quarter of 2021!      Home News About Us Contact Contributors Disclaimer Privacy Policy Help FAQ

Quick Search
My eDoc
Session History
Support Wiki
Direct access to
document ID:

          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 693578.0, MPI für Astronomie / Publikationen_mpia
Confirmation of small dynamical and stellar masses for extreme emission line galaxies at z ~ 2
Authors:Maseda, M. V.; van der Wel, A.; da Cunha, E.; Rix, H.-W.; Pacifici, C.; Momcheva, I.; Brammer, G. B.; Franx, M.; van Dokkum, P.; Bell, E. F.; Fumagalli, M.; Grogin, N. A.; Kocevski, D. D.; Koekemoer, A. M.; Lundgren, B. F.; Marchesini, D.; Nelson, E. J.; Patel, S. G.; Skelton, R. E.; Straughn, A. N.; Trump, J. R.; Weiner, B. J.; Whitaker, K. E.; Wuyts, S.
Date of Publication (YYYY-MM-DD):2013
Title of Journal:The Astrophysical Journal Letters
Issue / Number:1
Start Page:id. L22 (5 pp)
Audience:Not Specified
Abstract / Description:Spectroscopic observations from the Large Binocular Telescope and the Very Large Telescope reveal kinematically narrow lines (~50 km s–1) for a sample of 14 extreme emission line galaxies at redshifts 1.4 < z < 2.3. These measurements imply that the total dynamical masses of these systems are low (lsim 3 × 109 M ). Their large [O III] λ5007 equivalent widths (500-1100 Å) and faint blue continuum emission imply young ages of 10-100 Myr and stellar masses of 108-109 M , 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.
Free Keywords:galaxies: dwarf; galaxies: evolution; galaxies: formation; galaxies: high-redshift; galaxies: starburst
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
The scope and number of records on eDoc is subject to the collection policies defined by each institute - see "info" button in the collection browse view.