Journal article
A TOPOLOGICAL ANALYSIS OF LARGE-SCALE STRUCTURE, STUDIED USING THE CMASS SAMPLE OF SDSS-III
The Astrophysical journal, v 796(2), pp 1-14
01 Feb 2014
Abstract
We study the three-dimensional genus topology of large-scale structure using the northern region of the CMASS Data Release 10 (DR10) sample of the SDSS-III Baryon Oscillation Spectroscopic Survey. We select galaxies with redshift 0.452 < z < 0.625 and with a stellar mass M super(stellar) > 10 super(11.56) M sub([middot in circle]). We study the topology at two smoothing lengths: R sub(G) = 21 h super(-1) Mpc and R = 34 h super(-1) Mpc. The genus topology studied at the R sub(G) = 21 h super(-1) Mpc scale results in the highest genus amplitude observed to date. The CMASS sample yields a genus curve that is characteristic of one produced by Gaussian random phase initial conditions. The data thus support the standard model of inflation where random quantum fluctuations in the early universe produced Gaussian random phase initial conditions. We construct 54 mock SDSS CMASS surveys along the past light cone from the Horizon Run 3 (HR3) N-body simulations, where gravitationally bound dark matter subhalos are identified as the sites of galaxy formation.
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Details
- Title
- A TOPOLOGICAL ANALYSIS OF LARGE-SCALE STRUCTURE, STUDIED USING THE CMASS SAMPLE OF SDSS-III
- Creators
- Prachi Parihar - Princeton UniversityMichael Vogeley - Drexel UniversityJ GottYun-Young Choi - Astronomy and SpaceJuhan Kim - Korea Institute for Advanced StudySungsoo KimRobert Speare - New York University Abu DhabiJoel Brownstein - University of UtahJ Brinkmann - Apache Corporation
- Publication Details
- The Astrophysical journal, v 796(2), pp 1-14
- Publisher
- Institute of Physics (IOP)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000344878900015
- Scopus ID
- 2-s2.0-84911395836
- Other Identifier
- 991019169419604721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics