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Prof. Mel Ulmer DEPT OF PHYSICS & ASTRONOMY

Prof. Mel Ulmer DEPT OF PHYSICS & ASTRONOMY. http://www.astro.edu/astro/faculty/ulmer/a01_fall2002.html. TA: David Lin d-lin@northwestern.edu Office hours: Thursdays 4:00-5:00 For help with Cepheid variable lab, Make an appointment.

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Prof. Mel Ulmer DEPT OF PHYSICS & ASTRONOMY

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  1. Prof. Mel Ulmer DEPT OF PHYSICS & ASTRONOMY http://www.astro.edu/astro/faculty/ulmer/a01_fall2002.html

  2. TA: David Lin d-lin@northwestern.edu Office hours: Thursdays 4:00-5:00 For help with Cepheid variable lab, Make an appointment No discussion sections this week of Sep. 23 • Discussion sections: can come to more than one. • Discussions sections (see syllabus also) all in Tech: • Th., 2-3 (L170) 3-4 (LG66) U; Fri. 12-1 LG68, 1-150 M349 Lin

  3. Sun, 8 light minutes

  4. Mars, 12 light minutes

  5. Jupiter, 40 lt min.

  6. Pluto and Charon, 300 lt min

  7. A star with planets forming; 50 lt year

  8. Andromeda, a Galaxy like ours, 2 million lt yrs 100 billion Stars; 100,000 lt yrs across You are here!

  9. Virgo cluster, 60 million lt yrs 1000 galaxies, 6 million lt yrs across

  10. Coma Cluster, 360 million lt yrs, 1000 galaxies 6 million lt yrs across

  11. Hubble Deep Field, 10 billion lt yrs A cluster 4 billion lt yrs 1000 galaxies, 6 million lt yrs across

  12. Brick Wall, 15 billion lt yrs

  13. BOOMERANG

  14. Top Hat

  15. DASI

  16. COBE Planck Planck

  17. Maybe we already know! Data Models closed flat open

  18. Maybe we already know, part I, extended Need to Assume ordinary matter, WIMPS, Dark energy To make curve Blocks=Data

  19. Now we know, II

  20. Maybe we already know, III CMB SN Ia clusters

  21. Mauna Kea, On Big Island

  22. Keck, 10 meters Person

  23. Myall, 4 meters

  24. The End

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