- #1
- 24,752
- 795
in case of interest
this got published in the journal Science, in July, and just now became freely available online.
http://www.arxiv.org/abs/astro-ph/0510197
Mapping the Large Scale Structure of the Universe
David H. Weinberg
4 pages, 1 figure. A brief, semi-popular review of large scale structure studies with the 2dFGRS and the SDSS
Science, Vol. 309, pp. 564-565, July 22, 2005
"In a large scale view of the universe, galaxies are the basic unit of structure. A typical bright galaxy may contain 100 billion stars and span tens of thousands of light years, but the empty expanses between the galaxies are much larger still. Galaxies are not randomly distributed in space, but instead reside in groups and clusters, which are themselves arranged in an intricate lattice of filaments and walls, threaded by tunnels and pocked with bubbles. Two ambitious new surveys, the Two-Degree Field Galaxy Redshift Survey (2dFGRS) and the Sloan Digital Sky Survey (SDSS), have mapped the three-dimensional distribution of galaxies over an unprecedented range of scales. Astronomers are using these maps to learn about conditions in the early universe, the matter and energy contents of the cosmos, and the physics of galaxy formation."
this got published in the journal Science, in July, and just now became freely available online.
http://www.arxiv.org/abs/astro-ph/0510197
Mapping the Large Scale Structure of the Universe
David H. Weinberg
4 pages, 1 figure. A brief, semi-popular review of large scale structure studies with the 2dFGRS and the SDSS
Science, Vol. 309, pp. 564-565, July 22, 2005
"In a large scale view of the universe, galaxies are the basic unit of structure. A typical bright galaxy may contain 100 billion stars and span tens of thousands of light years, but the empty expanses between the galaxies are much larger still. Galaxies are not randomly distributed in space, but instead reside in groups and clusters, which are themselves arranged in an intricate lattice of filaments and walls, threaded by tunnels and pocked with bubbles. Two ambitious new surveys, the Two-Degree Field Galaxy Redshift Survey (2dFGRS) and the Sloan Digital Sky Survey (SDSS), have mapped the three-dimensional distribution of galaxies over an unprecedented range of scales. Astronomers are using these maps to learn about conditions in the early universe, the matter and energy contents of the cosmos, and the physics of galaxy formation."