ASTR 220 - Collisions in Space

Homework 4 (12 points)
Due Tuesday December 7 at the beginning of class

  1. Describe what happens when one member of a binary star system evolves to the point that it fills its Roche lobe.

  2. Are galaxies spread homogeneously through space? Describe the large scale structures traced out by galaxies.

  3. What evidence suggests that supermassive black holes exist at the centers of galaxies?

  4. Below is a picture of the spiral galaxy M101.