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The Galaxy Counterparts of the two high-metallicity DLAs at z=2.412 and z=2.583 towards Q0918+1636
J. P. U. Fynbo, S. Geier, L. Christensen +9
The quasar Q0918+1636 (z=3.07) has two intervening high-metallicity Damped Lyman-alpha Absorbers (DLAs) along the line of sight, at redshifts of z=2.412 and 2.583. The z=2.583 DLA…
Comprehensive Study of a z = 2.35 DLA Galaxy: Mass, Metallicity, Age, Morphology and SFR from HST and VLT
Jens-Kristian Krogager, Johan P. U. Fynbo, Cedric Ledoux +8
We present a detailed study of the emission from a z = 2.35 galaxy that causes damped Lyman-alpha absorption in the spectrum of the background QSO, SDSS J 2222-0946. We present the…
Mass-metallicity relation from z=5 to the present: Evidence for a transition in the mode of galaxy growth at z=2.6 due to the end of sustained primordial gas infall
P. Moller, J. P. U. Fynbo, C. Ledoux +1
We analyze the redshift evolution of the mass-metallicity relation in a sample of 110 Damped Ly absorbers spanning the redshift range and find that the zero-point…
TOUGH: Observational aspects of gamma-ray burst host galaxies
Jens Hjorth, Daniele Malesani, Andreas O. Jaunsen +11
GRB-selected galaxies are broadly known to be faint, blue, young, star-forming dwarf galaxies. This insight, however, is based in part on heterogeneous samples of optically selecte…
Optical/near-infrared selection of red QSOs: Evidence for steep extinction curves towards galactic centers?
J. P. U. Fynbo, J. -K. Krogager, B. Venemans +5
We present the results of a search for red QSOs using a selection based on optical imaging from SDSS and near-infrared imaging from UKIDSS. For a sample of 58 candidates 46 (79%) a…
The Optically Unbiased GRB Host (TOUGH) survey. IV. Lyman-alpha emitters
Bo Milvang-Jensen, Johan P. U. Fynbo, Daniele Malesani +3
We report the results of a spectroscopic search for Lyman-alpha emission from gamma-ray burst host galaxies. Based on the well-defined TOUGH sample of 69 X-ray selected Swift GRBs,…