User:Miimno/Galactic thin disk

Galactic thick disk, and Galactic thin disk and Galactic extreme spheroid refer to regions of the Galaxy. Each is defined in terms of space relative to the plane and the center (clarify, document)

Reference is made to Galactic thin disk:
 * http://en.wikipedia.org/wiki/Milky_Way#Age
 * http://en.wikipedia.org/wiki/Milky_Way#Galactic_Center
 * http://en.wikipedia.org/wiki/Timeline_of_the_Big_Bang
 * http://en.wikipedia.org/wiki/Creation-evolution_controversy
 * http://en.wikipedia.org/wiki/Nucleocosmochronology

No Reference is made to Galactic thick disk.

An article exists: http://en.wikipedia.org/wiki/Galactic_spheroid#Galactic_spheroid, which contains a useful section at the bottom containing links to articles about components, classification, etc.

Usage
Encyclopedia of Astronomy and Astrophysics, "Galactic Thin Disk" https://docs.google.com/viewer?url=http://www.astro.caltech.edu/~george/ay20/eaa-thindisk.pdf

Ionized gas in the first 10 kiloparsecs of the interstellar galactic halo, J. Christopher Howk, Kenneth R. Sembach, Blair D. Savage, 2002 http://www.nd.edu/~jhowk/Papers/howk2003_vz1128.pdf

The Galactic thick and thin disks: differences in evolution, Tetyana V. Nykytyuk, Tamara V. Mishenina, (2006) http://arxiv4.library.cornell.edu/pdf/astro-ph/0605661v1

Investigation of the Galactic thick disk from star count surveys by using multivariate data analysis, (1995) Chen, B., Astronomy and Astrophysics, v.306, p.733 http://adsabs.harvard.edu/full/1996A%26A...306..733C

The abundance distribution in the inner spheroid, Gilmore, G.; Wyse, R. F. G. Astronomical Journal (ISSN 0004-6256), vol. 90, Oct. 1985, p. 2015-2026. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1985AJ.....90.2015G&db_key=AST&page_ind=0&data_type=GIF&type=SCREEN_VIEW&classic=YES