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Galactic Dynamics

Studying the formation, structure, and motion of stars, gas, and dark matter within galaxies.

Explore By Stellar Galactic Dynamics

A Chemo-Kinematic Dissection of the Andromeda Galaxy's Disk: Tracing Radial Migration and Accreted Stars

August 18, 2025

A Chemo-Kinematic Dissection of the Andromeda Galaxy's Disk: Tracing Radial Migration and Accreted Stars

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The Nuclear Star Cluster and Central Black Hole of Andromeda (M31): A Kinematic and Stellar Population Analysis

August 17, 2025

The Nuclear Star Cluster and Central Black Hole of Andromeda (M31): A Kinematic and Stellar Population Analysis

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Two spiral galaxies, one with prominent golden arms and the other with a reddish-pink hue, engage in a gravitational interaction against a backdrop of distant stars in space.

August 14, 2025

The Impact of Galactic Mergers on Star Formation Efficiency: A Comparative Simulation Study

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An oblique view of a majestic barred spiral galaxy, its central core glowing with golden light while its sweeping arms are filled with blue stars and dark cosmic dust lanes.

August 11, 2025

Milkomeda in the Making: A High-Resolution N-Body Simulation of the Milky Way-Andromeda Merger

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A majestic, tilted view of a large spiral galaxy, featuring a brilliantly glowing central bulge and prominent dark dust lanes obscuring parts of its sprawling stellar disk.

August 9, 2025

Stellar Kinematics of Andromeda's Halo: Evidence for a Major Past Merger Event

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FAQs about Galactic Dynamics

It’s the study of how stars, gas, and dark matter move within a galaxy.

By tracking the speed and position of many stars and gas clouds inside the galaxy.

Visible matter alone isn't enough to explain why galaxies spin so fast. Dark matter provides the extra gravity needed to hold them together.

Researchers use telescopes to observe stars and supercomputers to create models of galaxies.