$A Short Scale Length for the \alpha-Enhanced Thick Disk of the Milky Way: Evidence from Low-Latitude SEGUE Data$

A Short Scale Length for the \alpha-Enhanced Thick Disk of the Milky Way: Evidence from Low-Latitude SEGUE Data

We examine the \alpha-element abundance ratio, [\alpha/Fe], of 5620 stars, observed by the Sloan Extension for Galactic Understanding and Exploration survey in the region 6 kpc < R < 16 kpc, 0.15 kpc < |Z| < 1.5 kpc, as a function of Galactocentric radius R and distance from the Galactic...

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Veröffentlicht in:	arXiv.org 2012-04
Hauptverfasser:	Cheng, Judy Y, Rockosi, Constance M, Morrison, Heather L, Young Sun Lee, Beers, Timothy C, Bizyaev, Dmitry, Harding, Paul, Malanushenko, Elena, Malanushenko, Viktor, Oravetz, Daniel, Pan, Kaike, Schlesinger, Katharine J, Schneider, Donald P, Simmons, Audrey, Weaver, Benjamin A
Format:	Artikel
Sprache:	eng
Schlagworte:	Deposition Migration Milky Way Galaxy Physics - Astrophysics of Galaxies Scale height Stars Stellar rotation
Online-Zugang:	Volltext
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