Galaxy formation and large-scale bias

Scale–dependent Galaxy Bias

We present a simple heuristic model to demonstrate how feedback related to the galaxy formation process can result in a scale-dependent bias of mass versus light, even on very large scales. The model invokes the idea that galaxies form initially in locations determined by the local density field, but the subsequent formation of galaxies is also influenced by the presence of nearby galaxies that...

Simulations of Galaxy Formation and Large Scale Structure

Locally Biased Galaxy Formation and Large Scale Structure

We examine the influence of the morphology-density relation and a wide range of simple models for biased galaxy formation on statistical measures of large scale structure. We contrast the behavior of local biasing models, in which the efficiency of galaxy formation is determined by the density, geometry, or velocity dispersion of the local mass distribution, with that of non-local biasing model...

Galaxy Formation and Large - Scale Structure a EDMUND

During the last few years one has heard exaggerated claims that the observed cosmic structure is inconsistent with the Big Bang theory; for example, that the universe is too young for known forces to have evacuated the giant voids. The discovery of primeval uctuations by the Cosmic Background Explorer satellite (COBE), with an amplitude appropriate for creating large-scale structures, has dampe...

Recent Advances in Large-Scale Structure and Galaxy Formation Studies

I review recent progress in the study of the large-scale structure of the Universe, covering the following areas: (1) Results from recently completed or ongoing redshift surveys of galaxies and X-ray clusters; (2) Measurements of the power spectrum of fluctuations approaching Gpc scales; (3) Redshift-space distortions and their cosmological use; (4) Structure at high redshifts and its connectio...