Keywords: Galactic Structure (2)

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Colliding Galaxies
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Colliding Galaxies

The Colliding Galaxies Model is an implementation of Alar and Juri Toomres' ... (more)

The Colliding Galaxies Model is an implementation of Alar and Juri Toomres' 1972 super computer model showing the formation of galactic bridges and tails under the assumption that galactic cores are point masses and that one galactic core is surrounded by 2D concentric rings of orbiting stars. The model assumes is that the stars (test particles) orbiting the galactic cores are non-interacting. When the two galaxies pass one another, tidal forces deform the star distribution into classic tidal features. Our EJS model reproduces this result showing that there is a long curving tail and that only the outermost ring of stars is affected by its companion galaxy. A thin bridge is also formed and some of the stars are captured by the companion galactic core. (less)

Subject:
Science and Technology
Material Type:
Activities and Labs
Simulations
Provider:
comPADRE
Provider Set:
Open Source Physics
Modern Astrophysics, Spring 2006
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Modern Astrophysics, Spring 2006

Applications of physics (Newtonian, statistical, and quantum mechanics) to fundamental processes that ... (more)

Applications of physics (Newtonian, statistical, and quantum mechanics) to fundamental processes that occur in celestial objects. Includes main-sequence stars, collapsed stars (white dwarfs, neutron stars, and black holes), pulsars, supernovae, the interstellar medium, galaxies, and as time permits, active galaxies, quasars, and cosmology. Observational data discussed. No prior knowledge of astronomy is required. (less)

Subject:
Science and Technology
Material Type:
Full Course
Homework and Assignments
Lecture Notes
Syllabi
Provider:
M.I.T.
Provider Set:
MIT OpenCourseWare
Author:
Schechter, Paul
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