Mathematics – Logic
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21530601m&link_type=abstract
American Astronomical Society, AAS Meeting #215, #306.01; Bulletin of the American Astronomical Society, Vol. 42, p.303
Mathematics
Logic
Scientific paper
Structure forms in the Universe as tiny perturbations in the density distribution grow over time under the influence of gravity. Because of this reliance on gravitational interaction, the formation of structure is dominated by the distribution of dark matter. However, the brightest galaxies and galaxy clusters do not trace the underlying mass distribution faithfully but rather cluster preferentially around regions of higher density. Understanding this clustering is crucial for the interpretation of galaxy surveys and makes it possible for astronomers to use survey statistics as a probe of the dark matter distribution in the Universe.
I apply the analytic extended-Press-Schechter formalism and high-resolution cosmological simulations to describe the increased abundance of galaxies and galaxy clusters in over-dense regions. I present my work on how the clustering of matter in the Universe influences surveys both of Lyman-break galaxies at z > 6 and the dwarf satellites of the Milky Way. Further, I develop techniques for using survey statistics to verify the mass and redshift of the earliest known galaxies and determine contributions to the peculiar velocity of the Local Group. In this way, I explore the relationship between luminous and dark matter in the Universe.
No associations
LandOfFree
Galaxies Clustering within Hierarchical Structure Formation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Galaxies Clustering within Hierarchical Structure Formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galaxies Clustering within Hierarchical Structure Formation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-961180