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NASA: Supernova

NASA: Supernova. Janet Moore NASA Educator Ambassador. NSTA Cincinnati. 1. The NASA E/PO Program at Sonoma State University. Swift. A group of people working collaboratively to educate the public about current and future NASA high energy astrophysics/astronomy missions.

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NASA: Supernova

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  1. NASA:Supernova • Janet Moore • NASA Educator Ambassador NSTA Cincinnati 1

  2. The NASA E/PO Program at Sonoma State University Swift • A group of people working collaboratively to educate the public about current and future NASA high energy astrophysics/astronomy missions. • Led by Prof. Lynn Cominsky Fermi (GLAST) XMM-Newton

  3. Supernova !

  4. Find the supernova Image: R. Jay GeBany

  5. Resulting shock disrupts envelope Resulting shock disrupts envelope Star explodes Core of star collapses

  6. Life Cycle of a Supernova

  7. Stellar evolution made simple Puff! 0.077 ~8 Mo Bang! ~8 ~20 Mo BANG! ~20 ~100 Mo Stars like the Sun go gentle into that good night More massive stars rage, rage against the dying of the light

  8. Rare Look at a Supernova XRT UVOT 2008 January 7:00 UT Swift Images of NGC 2770

  9. Rare Look at a Supernova XRT UVOT 2008 January 9:00 UT Swift Images of NGC 2770

  10. Three Supernova Activities • Fishing for Supernovae • Crawl of the Crab • Magnetic Poles and Pulsars • Three Supernova Activities • Fishing for Supernovae • Crawl of the Crab • Magnetic Poles and Pulsars Crawl of the Crab 10

  11. Crawl of the Crab We will use two pictures of the Crab Nebula 1956 Crab Pulsar 1999

  12. Lots of Knots

  13. Measuring Expansion Gives Age • Assume pulsar remains at center of nebula • Knots came from star, were blown out by the supernova, and travel at a constant velocity in a constant direction • If we can calculate that velocity, we can calculate how long to get from the star to the “current” location

  14. Measuring Expansion Gives Age • - OR - • Use one of the knots to make a proportion! • Distance in 43 years = Total Distance • 43 (years) Total Time

  15. So, let’s get started! Packet Rulers Calculators Do NOT do graphing part Each group choose ONE knot to make calculations from

  16. Your Results According to your calculations, in what year did the supernova occur? Why might we get different answers for different knots? How might you use this in your classroom?

  17. Questions?

  18. Thank You! • Janet Moore • JanetMoore@gmail.com • My Other Workshops: • DARK MATTER 9:30 am - Room 263 • NEWTON’S LAWS 11:00 am - Room 207 • PI IN THE SKY 3:30 - Room 262

  19. Additional Information http://www.astro.princeton.edu/~alicia/SN2008D/

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