Metallicity evolution at high redshift: the stellar mass of a sample of LBGs at z>3

Details Metallicity evolution at high redshift: the stellar mass of a sample of LBGs at z>3 Metallicity evolution at high redshift: the stellar mass of a sample of LBGs at z>3

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010sptz.prop70030m&link_type=abstract

Spitzer Proposal ID #70030

Computer Science

Scientific paper

We are using the new multi-object spectrograph of the LBT telescope to obtain deep, near-IR spectra of a large, representative sample of Lyman-Break Galaxies at z>3. These data are used to study the metallicity and dynamical properties of these galaxies and constrain the models of galaxy formation. In particular, we want to study the presence of metallicity evolution at z>3 with respect to the recently discovered Fundamental Metallicity Relation (FMR), which is found to show no evolution up to z=2.5. To optimize the use of the multi-object spectrograph, target galaxies are selected in projected overdensities containing 10-20 objects. We propose to use a limited amount of Spitzer time to observe one of these field, containing 14 LBG, whose spectra have been already obtained. IRAC photometry will be used to measure stellar mass and, as a consequence, compare these galaxies to the FMR

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