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Cosmological Parameters and Gravitational Lensing Statistics
Author(s) -
HELBIG PHILLIP
Publication year - 1995
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1995.tb17617.x
Subject(s) - gravitational lens , physics , gravitational lensing formalism , weak gravitational lensing , strong gravitational lensing , statistical physics , cosmology , gravitation , astrophysics , classical mechanics , galaxy , redshift
The general idea of determining cosmological parameters with gravitationallensing statistics is outlined, and then recent work---with an emphasis onapplicability to all cosmological models, observational bias, better statisticsand robustness testing through numerical simulations---is discussed withrelevance to a scheme originally introduced by Kochanek to avoid some of theuncertainties which plague other methods. The main result is that theobservations at present---and probably in the future as well---are moreindicative of intrinsic scatter than a hint of the correct cosmological model.Comment: 4 pages, one (1) self-unpacking uuencoded compressed PostScript file (created with uufiles) including figures, 98339 bytes, as PostScript file 238593 bytes, to appear in the Proceedings of the 17th Texas Symposium on Relativistic Astrophysics. Margins should be suitable for U.S. sized paper. (Quick and dirty version of astro-ph/9501013.