FC-ENZO is a new modeling tool that predicts ultra-cool dwarf contamination fractions in high-z galaxy samples, finding similar overall levels across HST, Roman, and JWST but with magnitude-dependent differences and higher predictions from the ELF OWL SED library.
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Correcting mismatched aperture-based mass estimates and backward vs forward halo tracking between observations and TNG simulations resolves the z>5 protocluster overabundance, with 64% reclassified as proto-groups and none as future Coma-like clusters.
citing papers explorer
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Assessing Ultra-Cool Dwarf Contamination in Photometrically Selected High-Redshift Galaxy Samples
FC-ENZO is a new modeling tool that predicts ultra-cool dwarf contamination fractions in high-z galaxy samples, finding similar overall levels across HST, Roman, and JWST but with magnitude-dependent differences and higher predictions from the ELF OWL SED library.
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Too many protoclusters? Reconciling the overabundance of cluster progenitors within the first billion years of the Universe
Correcting mismatched aperture-based mass estimates and backward vs forward halo tracking between observations and TNG simulations resolves the z>5 protocluster overabundance, with 64% reclassified as proto-groups and none as future Coma-like clusters.