1. Recycling in the Universe Alyssa A. Goodman Department of Astronomy Harvard University

2. Recycling in the Universe Molecular Clouds Stars Mass Loss

3. Fluctuations about 300,000 years after the Big Bang led to "Structure Formation"

4. Pretty young galaxies

5. "Star Formation"

6. Star "Death": Interstellar Recycling Plants Mass=100 x Sun

7. Distribution of Recycling Plants 0.01 2 3 4 5 6 0.1 2 3 4 5 6 1 Relative Number of Stars 0.1110 Mass [M Sun ] e.g. for every "Sun" there are 22 stars with mass 10x smaller than the Sun's The "Initial Mass Function" (IMF)The Hertzprung-Russell Diagram 100

8. Output of Recycling Plants The Hertzprung-Russell Diagram Supernova, then neutron star/pulsar or black hole Red giant then white dwarf Long-lived brown dwarfs "Styrofoam" Good recyclables. Red-giant wind main dust injection in ISM. Spectacular contribution, and collection. Explosion injects, and "sweeps up" interstellar material.

9. A "Supernova " Recycling Plant

11. Swept-up Gas:The Next Generation

12. “Star and Planet Formation” Giant Molecular Clouds "Cores" and Outflows Jets and Disks Solar System Formation

13. "Dark" Clouds

15. (Unusual?) Stellar Nursery in the Eagle Nebula

16. Star Formation Caused by A Galaxy Collision (a.k.a. igniting the trash)

17. Output of Recycling Plants The Hertzprung-Russell Diagram Supernova, then neutron star/pulsar or black hole Red giant then white dwarf Long-lived brown dwarfs "Styrofoam" Good recyclables. Red-giant wind main dust injection in ISM. Spectacular contribution, and collection. Explosion injects, and "sweeps up" interstellar material.

18. "Excess Gas?" Post-red-giant planetary nebula

19. Recycling in the Universe

21. Recycling in the Universe(?)

22. Thanks to the MMO! For more information, or an on-line version of this talk, visit: cfa- www.harvard.edu/~agoodma n