Paper:	The Halo from the Outside In: QSO Absorption Lines
Volume:	92, Formation of the Galactic Halo. . . . Inside and Out
Page:	501
Authors:	Churchill, Christopher W.; Vogt, Steven S.
Abstract:	Studies of high resolution quasar absorption lines (QALs), arising from gas in local and z <= 1.5 galaxies, provide direct probes of the kinematic, chemical, and ionization conditions and evolution of Milky Way--like galaxies. Inferences drawn from these studies provide a powerful analog for those based upon direct studies of the halo. The observed gas kinematics and velocity evolution reveal that galactic halos are complex dynamical components, consistent with Searle--Zinn formation scenarios.

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