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Concept

List of stellar streams

This is a list of stellar streams. A stellar stream is an association of stars orbiting a galaxy. It was once a globular cluster or dwarf galaxy that has now been torn apart and stretched out along its orbit by tidal forces. An exception in the list about Milky Way streams given below is the Magellanic Stream, composed of gas (mostly hydrogen) although in 2023 a population of some star has been described inside it.

Official source

https://en.wikipedia.org/wiki/List_of_stellar_streams

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Official source

https://en.wikipedia.org/wiki/List_of_stellar_streams

About this result

Related courses (1)

PHYS-401: Astrophysics IV : stellar and galactic dynamics

The aim of this course is to acquire the basic knowledge on specific dynamical phenomena related to the origin, equilibrium, and evolution of star clusters, galaxies, and galaxy clusters. ...

Related lectures (18)

Stellar Orbits: Surfaces and Families

Explores orbits in non-axisymmetric potentials and visualizes phase space in planar potentials.

Stellar Orbits: Stability and Resonances

Explores the stability of orbits, effective potential shape, and resonances in stellar dynamics.

Stellar Orbits: Lindblad Resonances and Collisionless Boltzmann Equation

Explores weak bars, resonances, and equilibria in stellar systems.

Related publications (32)

White dwarfs as a probe of exceptionally light QCD axions

Stefan Stelzl

American Physical Society2024

Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument

Iop Publishing Ltd2024

The extended stellar halo' of the Ursa Minor dwarf galaxy

Pascale Jablonka

OXFORD UNIV PRESS2023

Related units (2)

Laboratory of Astrophysics

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Related concepts (3)

Stellar kinematics

In astronomy, stellar kinematics is the observational study or measurement of the kinematics or motions of stars through space. Stellar kinematics encompasses the measurement of stellar velocities in the Milky Way and its satellites as well as the internal kinematics of more distant galaxies. Measurement of the kinematics of stars in different subcomponents of the Milky Way including the thin disk, the thick disk, the bulge, and the stellar halo provides important information about the formation and evolutionary history of our Galaxy.

Satellite galaxy

A satellite galaxy is a smaller companion galaxy that travels on bound orbits within the gravitational potential of a more massive and luminous host galaxy (also known as the primary galaxy). Satellite galaxies and their constituents are bound to their host galaxy, in the same way that planets within our own solar system are gravitationally bound to the Sun. While most satellite galaxies are dwarf galaxies, satellite galaxies of large galaxy clusters can be much more massive.

Galaxy merger

Galaxy mergers can occur when two (or more) galaxies collide. They are the most violent type of galaxy interaction. The gravitational interactions between galaxies and the friction between the gas and dust have major effects on the galaxies involved. The exact effects of such mergers depend on a wide variety of parameters such as collision angles, speeds, and relative size/composition, and are currently an extremely active area of research. Galaxy mergers are important because the merger rate is a fundamental measurement of galaxy evolution.