Zobrazeno 1 - 10
of 210
pro vyhledávání: '"William C. Saslaw"'
We examine the counts-in-cells probability distribution functions that describe dark matter halos in the Dark Energy Universe Simulations (DEUS). We describe the measurements between redshifts $z=0$ to $z=4$ on both linear and non-linear scales. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99c3682a6378214a2480913a492cc101
Publikováno v:
The Astrophysical Journal. 645:940-949
We calculate the irreducible triplet contribution to galaxy clustering in the cosmological many-body problem. These triplets generally represent short-lived configurations in which three close objects interact with pairwise gravitational forces. From
Autor:
William C. Saslaw, Paul Murdin
Publikováno v:
Journal for the History of Astronomy. 36:21-27
Autor:
Bernard Leong, William C. Saslaw
Publikováno v:
The Astrophysical Journal. 608:636-646
We examine the peculiar velocity distribution function of galaxies in cosmological many-body gravitational clustering. Our statistical mechanical approach derives a previous basic assumption and generalizes earlier results to galaxies with haloes. Co
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 345:552-560
We explore the development of galaxy clustering after an extremely long time in a flat Einstein–de Sitter universe. The time-scale for growth of clustering in this universe is shorter than the global expansion time-scale. This eventually leads to a
Publikováno v:
The Astrophysical Journal. 571:576-584
We derive analytical expressions for the grand canonical partition functions of point masses, and of extended masses (e.g., galaxies with halos), which cluster gravitationally in an expanding universe. From the partition functions, we obtain the syst
Autor:
James H. Edgar, William C. Saslaw
Publikováno v:
The Astrophysical Journal. 534:1-10
We develop the properties of cosmological many-body clustering at high redshift and compare the resulting theoretical distributions with recent observations of groups of galaxies around z ≈ 3. Analyses of the observed variance of counts-in-cells an
Autor:
William C. Saslaw
Publikováno v:
International Astronomical Union Colloquium. 174:412-422
Cosmological many-body clustering agrees with the spatial and velocity distribution functions of galaxies at low redshifts, and it can be extended to high redshifts z ≈ 3 or more. The high redshift distribution functions are predicted to have a par
Autor:
William C. Saslaw
Publikováno v:
The Distribution of the Galaxies. :ix-xii
Publikováno v:
The Astrophysical Journal. 509:595-607
We analyze the three-dimensional spatial-velocity distribution of the counts-in-cells for 4501 galaxies in the Pisces-Perseus supercluster. This is done for the total sample, for a subset containing the most conspicuous galaxies (brightest members wi