CHORD DISTRIBUTION ALONG A LINE IN THE LOCAL UNIVERSE

被引：0
作者：
Zaninetti, L. [1 ]
机构：
[1] Univ Turin, Dipartimento Fis, I-10125 Turin, Italy
来源：
REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA | 2013年 / 49卷 / 01期
关键词：
galaxies: clusters: general; galaxies: statistics; large-scale structure of universe; methods: statistical; REDSHIFT SURVEY; GALACTIC POLES; COSMIC VOIDS; GALAXIES; MODEL;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A method is developed to compute the chord length distribution along a line which intersects a cellular universe. The cellular universe is here modeled by the Poissonian Voronoi Tessellation (PVT) and by a non-Poissonian Voronoi Tessellation (NPVT). The distribution of the spheres is obtained from common approximations used in modeling the volumes of Voronoi Diagrams. We give analytical formulas for the distributions of the lengths of chords in both the PVT and NPVT. The astrophysical applications are made to the real ESO Slice Project and to an artificial slice of galaxies which simulates the 2dF Galaxy Redshift Survey.
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收藏
页码：117 / 126
页数：10
相关论文
共 16 条
[1]  
[Anonymous], 2000, Spatial tessellations: concepts and applications of Voronoi diagrams
[2]   Six peaks visible in the redshift distribution of 46,400 SDSS Quasars agree with the preferred redshifts predicted by the decreasing intrinsic redshift model [J].
Bell, M. B. ;
McDiarmid, D. .
ASTROPHYSICAL JOURNAL, 2006, 648 (01) :140-147
[3]   LARGE-SCALE DISTRIBUTION OF GALAXIES AT THE GALACTIC POLES [J].
BROADHURST, TJ ;
ELLIS, RS ;
KOO, DC ;
SZALAY, AS .
NATURE, 1990, 343 (6260) :726-728
[4]   On the size distribution of Poisson Voronoi cells [J].
Ferenc, Jarai-Szabo ;
Neda, Zoltan .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 2007, 385 (02) :518-526
[5]   Unknown selection effect simulates redshift periodicity in quasar number counts from Sloan Digital Sky Survey [J].
Hartnett, J. G. .
ASTROPHYSICS AND SPACE SCIENCE, 2009, 324 (01) :13-16
[6]  
Hartnett JG, 2009, ASTR SOC P, V413, P77
[7]  
KIANG T, 1966, Z ASTROPHYS, V64, P433
[8]   Cosmic voids in Sloan Digital Sky Survey Data Release 7 [J].
Pan, Danny C. ;
Vogeley, Michael S. ;
Hoyle, Fiona ;
Choi, Yun-Young ;
Park, Changbom .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2012, 421 (02) :926-934
[9]   PORE-SIZE DISTRIBUTIONS OF FOAMS FROM CHORD DISTRIBUTIONS OF RANDOM LINES - MATHEMATICAL INVERSION AND COMPUTER-SIMULATION [J].
RUAN, JZ ;
LITT, MH ;
KRIEGER, IM .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1988, 126 (01) :93-100
[10]   REDSHIFT SURVEY WITH MULTIPLE PENCIL BEAMS AT THE GALACTIC POLES [J].
SZALAY, AS ;
BROADHURST, TJ ;
ELLMAN, N ;
KOO, DC ;
ELLIS, RS .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1993, 90 (11) :4853-4858
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