Although the stellar initial mass function (IMF) has only been directly determined in star clusters, it has been manifoldly applied on galaxy-wide scales. But...
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PublicationDiverging UV and Hα fluxes of star-forming galaxies predicted by the IGIMF theory
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PublicationEnvironment of the Submillimeter-bright Massive Starburst HFLS3 at z ~ 6.34
We describe the search for Lyman break galaxies (LBGs) near the submillimeter-bright starburst galaxy HFLS3 at z = 6.34 and a study on the environment of this...
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PublicationEnvironmental effects on the bright end of the galaxy luminosity function in galaxy clusters
Context. The dependence of the luminosity function (LF) of cluster galaxies on the evolutionary state of the parent cluster is still an open question, in...
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PublicationErratum: Sampling methods for stellar masses and the mmax-Mecl relation in the starburst dwarf galaxy NGC 4214
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PublicationEvidence for a fundamental stellar upper mass limit from clustered star formation
The observed masses of the most massive stars do not surpass about 150 Msolar. This may either be a fundamental upper mass limit which is defined by the physics...
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PublicationEvolutionary paths among different red galaxy types at 0.3 < z < 1.5 and the late buildup of massive E-S0s through major mergers
Some recent observations seem to disagree with hierarchical theories of galaxy formation about the role played by major mergers in the late buildup of massive E...
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PublicationExploring the lower mass function in the young open cluster IC 4665
We present a study of the young (30-100 Myr) open cluster IC 4665 with the aim to determine the shape of the mass function well into the brown dwarf regime. We...
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PublicationExploring the planetary-mass population in the Upper Scorpius association
We aim at identifying very low-mass isolated planetary-mass member candidates in the nearest OB association to the Sun, Upper Scorpius (USco) (145 pc; 5-10 Myr)...
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PublicationFossil group origins. V. The dependence of the luminosity function on the magnitude gap
Context. In nature we observe galaxy aggregations that span a wide range of magnitude gaps between the two first-ranked galaxies of a system (Δm12). Thus, there...