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How well can we Measure the Intrinsic Velocity Dispersion of Distant Disk Galaxies?
R. Davies, N. M. Forster Schreiber, G. Cresci +13
The kinematics of distant galaxies, from z=0.1 to z>2, play a key role in our understanding of galaxy evolution from early times to the present. One of the important parameters is…
Evidence for non-evolving FeII/MgII ratios in rapidly accreting z~6 QSOs
Gisella De Rosa, Roberto Decarli, Fabian Walter +5
[abridged] Quasars (QSOs) at the highest known redshift (z~6) are unique probes of the early growth of supermassive black holes (BHs). Until now, only the most luminous QSOs have b…
Discovery of a high-z protocluster with tunable filters: the case of 6C0140+326 at z=4.4
E. Kuiper, N. A. Hatch, B. P. Venemans +7
We present the first results obtained using a tunable narrowband filter in the search for high-z protoclusters. Using the recently commissioned red tunable filter on the Gran Teles…
Discovery Of Cold, Pristine Gas Possibly Accreting Onto An Overdensity Of Star-Forming Galaxies At Redshift z ~ 1.6
Mauro Giavalisco, Eros Vanzella, Sara Salimbeni +12
We report the discovery of large amounts of cold (T ~ 10^4 K), chemically young gas in an overdensity of galaxies at redshift z ~ 1.6 in the Great Observatories Origins Deep Survey…