Lecture22 - Astro Nova Black Hole in Omega Centauri HST...

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Astro Nova Black Hole in Omega Centauri HST images Gemini stellar velocities 40,000 M Sun black hole dwarf galaxy, not globular cluster? Saturday 4/12 was International Sidewalk Astronomy Night Russia to build new cosmodrome 2015 completion
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Final Exam Wednesday May 14 9:00 am – 10:30 am Physics Lecture Hall Closed book and notes Computer-graded multiple-choice questions Material covered: Text chapters 22 - 27 Lectures 15-27 (March 13 through May 1) Bring Student ID card and a #2 pencil Practice Exam on class web page soon
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Makeup Final Exam Monday May 12, noon – 1:30 pm SEC 203 Same format & coverage as regular exam Only for those with verified exam conflicts or Dean’s notes
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Extra Credit Submit multiple-choice questions for final exam (with 5 answer choices). Email submission preferred Deadline: 5 pm Monday, May 5 Accepted questions replace low quiz scores with perfect scores – up to 2 quizzes replaced
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Quiz Question #1 An object with M/L = 100 is mostly made of: A. Upper main sequence stars B. Solar-type stars C. Lower main sequence stars D. Luminous matter E. Dark matter
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Quiz Question #2 What is the largest scale structure in the Universe? A. There is no “largest structure” every time we look deeper into the universe we see larger scale structures. B. Superclusters, filaments, and voids C. Rich galaxy clusters D. cD galaxies E. Gravitational lenses
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Quiz Question #3 How does the Sloan Digital Sky Survey make a 3-D map of the universe? A. By measuring galaxy distances with Cepheid variable stars. B. By measuring galaxy distances using their redshifts . C. By measuring galaxy distances using supernovae type Ia.
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Lecture22 - Astro Nova Black Hole in Omega Centauri HST...

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