The Angular Clustering of Galaxy Pairs | Zendy

L. Infante | Zendy; Michael A. Strauss | Zendy; Neta A. Bahcall | Zendy; G. R. Knapp | Zendy; Robert H. Lupton | Zendy; Rita S. J. Kim | Zendy; Michael S. Vogeley | Zendy; J. Brinkmann | Zendy; István Csabai | Zendy; M. Fukugita | Zendy; G. S. Hennessy | Zendy; Željko Ivezić | Zendy; D. Q. Lamb | Zendy; Brian Lee | Zendy; Jeffrey R. Pier | Zendy; Donald G. York | Zendy

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The Angular Clustering of Galaxy Pairs

Author(s) -

L. Infante,

Michael A. Strauss,

Neta A. Bahcall,

G. R. Knapp,

Robert H. Lupton,

Rita S. J. Kim,

Michael S. Vogeley,

J. Brinkmann,

István Csabai,

M. Fukugita,

G. S. Hennessy,

Željko Ivezić,

D. Q. Lamb,

Brian Lee,

Jeffrey R. Pier,

Donald G. York

Publication year - 2002

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/338424

Subject(s) - physics , astrophysics , correlation function (quantum field theory) , galaxy , sky , correlation , logarithm , cluster analysis , astronomy , statistics , mathematics , geometry , mathematical analysis , quantum mechanics , dielectric

We identify close pairs of galaxies from 278 deg^2 of Sloan Digital SkySurvey commissioning imaging data. The pairs are drawn from a sample of 330,041galaxies with 18 < r^* < 20. We determine the angular correlation function ofgalaxy pairs, and find it to be stronger than the correlation function ofsingle galaxies by a factor of 2.9 +/- 0.4. The two correlation functions havethe same logarithmic slope of 0.77. We invert Limber's equation to estimate thethree-dimensional correlation functions; we find clustering lengths of r_0= 4.2+/- 0.4 h^{-1} Mpc for galaxies and 7.8 +/- 0.7 h^{-1} Mpc for galaxy pairs.These results agree well with the global richness dependence of the correlationfunctions of galaxy systems.Comment: 12 pages. ApJ, in pres

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