Galaxy Interactions Intro to Astrophysics James Carroll

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Presentation transcript:

Galaxy Interactions Intro to Astrophysics James Carroll Elon University

Angular Momentum Density Conditions in Protogalactic Clouds

Centaurus A Elliptical Galaxy

NGC3370 Spiral Galaxy

NGC 55 – irregular galaxy Pink star forming regions and blue (new) star clusters.

Leo A – dwarf irregular galaxy

Arp 243 – Tidal Tails

Whirlpool Galaxy

Antennae Galaxy

Antennae Galaxies – The dark dust detailes massive molecular clouds that are being compressed during collision. The blue is caused by newly formed stars, formed is a starburst caused by the galactic collision. There are also the pinkish star forming regions.

Cartwheel Galaxy

Computer Simulations In 1972, Alar and Jüri Toomre conducted the first computer simulations of galaxy interactions. They were able to reproduce tidal tails of galaxies. Their process of collision evolution became known as the Toomre Sequence.

http://burro.cwru.edu/JavaLab/GalCrashWeb/GCSolo.html

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