Structure and Contents of Cosmic Voids: Tests of Cosmology and Gastrophysics

Details Structure and Contents of Cosmic Voids: Tests of Cosmology and Gastrophysics Structure and Contents of Cosmic Voids: Tests of Cosmology and Gastrophysics

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21720403p&link_type=abstract

American Astronomical Society, AAS Meeting #217, #204.03; Bulletin of the American Astronomical Society, Vol. 43, 2011

Mathematics

Logic

Scientific paper

Using the Sloan Digital Sky Survey (SDSS) we find that voids fill over 60% of the Universe while containing only approximately 10% of the galaxies. The shapes, sizes, and internal structures of voids can be used to determine the cosmological parameters of the Universe, particularly omega-m, sigma-8, omega-L, and the Hubble constant. Additionally, the detailed properties of objects in voids are a strong test of structure formation models. Ly-alpha absorbers from Hubble-STIS quasar absorption line systems are detected in the proximity of galaxies. However, we find that they do not match the underlying galaxy distribution; 60% of Ly-alpha absorbers live in large (R > 10 Mpc/h) cosmic voids.

Affiliated with

Also associated with

No associations

Rating

Structure and Contents of Cosmic Voids: Tests of Cosmology and Gastrophysics 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 Structure and Contents of Cosmic Voids: Tests of Cosmology and Gastrophysics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure and Contents of Cosmic Voids: Tests of Cosmology and Gastrophysics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1396812