The clustering of quasars from an objective-prism survey

Mathematics – Logic

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

65

Quasars, Red Shift, Spatial Distribution, Star Clusters, Astronomical Coordinates, Density Distribution, Fourier Transformation, Power Spectra, Prisms, Statistical Analysis

Scientific paper

The positions and redshifts of 108 quasars from the Cerro Tololo objective-prism survey are subjected to Fourier Power Spectrum Analysis in a search for clustering in their spatial distribution. It is found that, on the whole, these quasars are not clustered but are scattered in space independently at random. The sole exception is a group of four quasars at z = 0.37 which has a low probability of being a chance event and which, with a size of about 100 Mpc, may therefore be the largest known structure in the Universe. The conclusions disagree with Arp's analysis of this catalogue: his 'clouds of quasars' ejected by certain low-redshift galaxies, for example, are attributable to sensitivity variations among the different plates of the survey. It is shown that analysis of deeper surveys is likely to show up quasar clusters even at high redshift, and could therefore provide a useful new cosmological probe.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

The clustering of quasars from an objective-prism survey 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 The clustering of quasars from an objective-prism survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The clustering of quasars from an objective-prism survey will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1101541

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.