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26 April 2024 |
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The Las Campanas Redshift Survey Galaxy-Galaxy Autocorrelation Function | | D.L. Tucker
; A. Oemler
; Jr.
; R.P. Kirshner
; H. Lin
; S.A. Shectman
; S.D. Landy
; P.L. Schechter
; V. Mueller
; S. Gottloeber
; J. Einasto
; | | Date: |
25 Nov 1996 | | Subject: | astro-ph | | Affiliation: | FNAL/AIP), A. Oemler, Jr. (OCIW/Yale), R.P. Kirshner (CFA), H. Lin (Toronto), S.A. Shectman (OCIW), S.D. Landy (OCIW), P.L. Schechter (MIT), V. Mueller (AIP), S. Gottloeber (AIP), and J. Einasto (Tartu | | Abstract: | Presented are measurements of the observed redshift-space galaxy-galaxy autocorrelation function, xi(s), for the Las Campanas Redshift Survey (LCRS). For separations 2.0/h Mpc < s < 16.4/h Mpc, xi(s) can be approximated by a power law with slope of -1.52 +/- 0.03 and a correlation length of s_0 = (6.28 +0.27)/h Mpc. A zero-crossing occurs on scales of roughly 30 - 40/h Mpc. On larger scales, xi(s) fluctuates closely about zero, indicating a high level of uniformity in the galaxy distribution on these scales. In addition, two aspects of the LCRS selection criteria - a variable field-to-field galaxy sampling rate and a 55 arcsec galaxy pair separation limit - are tested and found to have little impact on the measurement of xi(s). Finally, the LCRS xi(s) is compared with those from numerical simulations; it is concluded that, although the LCRS xi(s) does not discriminate sharply among modern cosmological models, redshift-space distortions in the LCRS xi(s) will likely provide a strong test of theory. | | Source: | arXiv, astro-ph/9611206 | | Services: | Forum | Review | PDF | Favorites | |
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