Mathematics – Logic
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273l..17k&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 273, Oct. 1, 1983, p. L17-L20.
Mathematics
Logic
83
Astronomical Models, Big Bang Cosmology, Neutrinos, Relic Radiation, Background Radiation, Galactic Evolution, Microwaves, Velocity Distribution
Scientific paper
The streaming motion due to long-wavelength density perturbations is calculated for neutrino-dominated cosmological models. The predictions of the models are compared with the observed motion, relative to the background radiation, of a region surrounding us that has an effective diameter of aproximately 50/h Mpc. If it is assumed that the velocity of this region is typical, then the primary structure ('pancakes') can only just be forming at the present, and the short-wavelength cutoff, which sets the scale of the structures is limited to be approximately 12 Mpc, corresponding to a neutrino mass of aproximately 100 eV and a Hubble parameter H = 100 km/s Mpc. In order to have pancakes forming at z = 3.5, to account for the existence of QSOs, it is necessary to assume that the velocity of the region surrounding us must be uncharacteristically low, such that only 5 percent of hypothetical observers would determine such a low velocity.
No associations
LandOfFree
Constraints on neutrino-dominated cosmologies from large-scale streaming motion 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 Constraints on neutrino-dominated cosmologies from large-scale streaming motion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on neutrino-dominated cosmologies from large-scale streaming motion will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1192732