In Memorie della Societa Astronomica Italiana, v.77, p.1095 (2006).
http://arxiv.org/abs/astro-ph/0610676

For a PDF version of the article, click here.

GALACTIC HISTORY: FORMATION AND EVOLUTION

Joss Bland-Hawthorn 1 & Ken Freeman 2


1 Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia
2 Mount Stromlo and Siding Spring Observatory, Private Bag, Woden, ACT 2611, Australia


Abstract: We explore the motivation behind large stellar surveys in Galactic astronomy, in particular, surveys that measure the photometric, phase space and abundance properties of thousands or millions of stars. These observations are essential to unravelling the sequence of events involved in galaxy formation and evolution, although disentangling key signatures from the complexity continues to be very challenging. The new data will require major advances in our understanding of stellar atmospheres, stellar chemistry, the dynamics of the Galaxy and the Local Group.


Keywords :

Stars: abundances – Stars: kinematics – Stars: Population III – Galaxy: abundances – Galaxy: kinematics – Cosmology: observations


Table of Contents

GALACTIC SURVEYS - WHY BOTHER?

WHAT RECENT SURVEYS HAVE REVEALED
Resolved stellar populations
Thick disks & outer disks
Abundance patterns and gradients
Substructure & streams

FUTURE SURVEYS
The case for extending beyond the Local Group
The origin of the thick and thin disk
The origin of the bulge and halo: ancient stars

THE IMPORTANCE OF A DYNAMICAL FRAMEWORK FOR THE GALAXY

TESTING CDM IN THE NON-LINEAR REGIME

A COMPLETE THEORY OF GALAXY FORMATION?

REFERENCES

Next