Correlations between kinematics and metallicity in the Galactic bulge: a review

Abstract

Recent large scale surveys of galactic bulge stars allowed to build a detailed map of the bulge kinematics. The bulge exhibits cylindrical rotation consistent with a disky origin which evolved through bar driven secular evolution. However correlations between metallicity and kinematics complicate this picture. In particular a metal-poor component with distinct kinematic signatures has been detected. Its origin, density profile and link with the other Milky Way stellar populations are currently still poorly constrained.

Accepted for publication in PASA

References in corpus (20)

• Stellar Proper Motions in the Galactic Bulge from deep HST ACS/WFC Photometry
• ARGOS II: The Galactic Bulge Survey
• The Bulge Radial Velocity Assay (BRAVA): I. Techniques and a Rotation Curve
• Kinematics at the Edge of the Galactic Bulge: Evidence for Cylindrical Rotation
• The SAURON project - XI. Stellar Populations from Absorption Line Strength Maps of 24 Early-Type Spirals
• The First Detailed Abundances for M giants in the inner Bulge from Infrared Spectroscopy
• Discovery of low-metallicity stars in the central parsec of the Milky Way
• The Age and Structure of the Galactic Bulge from Mira Variables
• Elliptical Galaxies and Bulges of Disk Galaxies: Summary of Progress and Outstanding Issues
• Proper motions and kinematics of selected bulge globular clusters
• Evidence of a Metal Rich Galactic Bar from the Vertex Deviation of the Velocity Ellipsoid
• Clues to the Metallicity Distribution in the Galactic Bulge: Abundances in OGLE-2007_BLG-349S
• Proper Motion Dispersions of Red Clump Giants in the Galactic Bulge: Observations and Model Comparisons
• Origin of the high v_los feature in the Galactic bar
• Proper Motions in the Galactic Bulge: Plaut's Window
• Mapping stellar kinematics across the Galactic bar: HST measurements of proper motions in 35 fields
• Kinematics of classical Cepheids in the Nuclear Stellar Disk
• On the Correlation Between Metallicity and the X-Shaped Morphology of the Milky Way Bulge
• Kinematics of the X-shaped Milky Way Bulge: Expectations from a Self-consistent N-body Model
• Understanding AGB evolution in Galactic bulge stars from high-resolution infrared spectroscopy

Cited by in corpus (25)

• Chemodynamical history of the Galactic Bulge
• Separation of Stellar Populations by an Evolving Bar: Implications for the Bulge of the Milky Way
• The GIRAFFE Inner Bulge Survey (GIBS) III. Metallicity distributions and kinematics of 26 Galactic bulge fields
• The Milky Way bar and bulge revealed by APOGEE DR16 and Gaia EDR3
• PLATO as it is: a legacy mission for Galactic archaeology
• Metallicity-dependendent kinematics and morphology of the Milky Way bulge
• Stars behind bars I: The Milky Way's central stellar populations
• Blanco DECam Bulge Survey (BDBS) II: Project Performance, Data Analysis, and Early Science Results
• The central velocity dispersion of the Milky Way bulge
• Weighing the two stellar components of the Galactic Bulge
• Chemically-dissected rotation curves of the Galactic Bulge from Main Sequence proper motions
• Chemical Characterization of the Inner Galactic bulge:North-South Symmetry
• Most pseudo-bulges can be formed at later stages of major mergers
• The age distribution of stars in the Milky Way bulge
• SiO Masers in the Galactic Bulge and Disk: Kinematics from the BAaDE Survey
• Abundance analysis of APOGEE spectra for 58 metal-poor stars from the bulge spheroid
• Modeling the chemical enrichment history of the Bulge Fossil Fragment Terzan 5
• Mapping the tilt of the Milky Way bulge velocity ellipsoids with ARGOS and $Gaia$ DR2
• Age-morphology dependence of the Milky Way boxy/peanut bulge seen in Mira variables
• Signatures of the Galactic bar on stellar kinematics unveiled by APOGEE
• Blanco DECam Bulge Survey (BDBS) V. Cleaning the foreground populations from Galactic bulge colour-magnitude diagrams using Gaia EDR3
• The small boxy/peanut structure of the Milky Way traced by old stars
• The disc origin of the Milky Way bulge: On the high velocity dispersion of metal-rich stars at low latitude
• The chemical and spatial variations of the bulge's velocity ellipsoids
• Blanco DECam Bulge Survey (BDBS) IV: Metallicity Distributions and Bulge Structure from 2.6 Million Red Clump Stars