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Paper: The Lockman Hole Multi-Wavelength Survey
Volume: 424, Proceedings of the 9th International Conference of the Hellenic Astronomical Society
Page: 271
Authors: Rovilos, E.; Burwitz, V.; Bouché, N.; Berta, S.; Lutz, D.; Genzel, R.; Szokoly, G.; Hasinger, G.; Salvato, M.; Egami, E.
Abstract: We used the large binocular camera (LBC) mounted on the Large Binocular Telescope (LBT) to observe the Lockman Hole in the U, B, and V bands. Our observations cover an area of 900 arcmin2. We reached depths of 26.7, 26.3, and 26.3 mag(AB) in the three bands, respectively, in terms of 50% source detection efficiency. We extracted a large number of sources (∼89000), detected in all three bands and examined their surface density, comparing it with models of galaxy evolution. We find good agreement with previous claims of a steep faint-end slope of the luminosity functions, caused by late-type and irregular galaxies at z>1.5. A population of dwarf star-forming galaxies at 1.5<z<2.5 is needed to explain the U-band number counts. We also find evidence of strong supernova feedback at high redshift.
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