TL;DR
The paper discusses how upcoming GAIA data will revolutionize Galactic dynamics studies by enabling Galactoseismology, which infers the Galaxy's potential and sub-structures through disk perturbation analysis, emphasizing the need for comprehensive models.
Contribution
It highlights the importance of developing integrated models for stars and gas to fully utilize GAIA data for Galactic dynamics analysis.
Findings
Identification of key morphological puzzles in the Galactic disk.
Proposed solutions for testing Galactic disk perturbations.
Emphasis on the necessity of comprehensive star and gas models.
Abstract
The GAIA satellite will provide unprecedented phase-space information for our Galaxy and enable a new era of Galactic dynamics. We may soon see successful realizations of Galactoseismology, i.e., inferring the characteristics of the Galactic potential and sub-structure from a dynamical analysis of observed perturbations in the gas or stellar disk of the Milky Way. Here, we argue that to maximally take advantage of the GAIA data and other complementary surveys, it is necessary to build comprehensive models for both the stars and the gas. We outline several key morphological puzzles of the Galactic disk and proposed solutions that may soon be tested.
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