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International Year of Light: The Visible and The Invisible! Pamela Harman pharman@seti

International Year of Light: The Visible and The Invisible! Pamela Harman pharman@seti.org Coral Clark clark@usra.edu NASA SOFIA EPO https:// www.sofia.usra.edu / Edu / edu.html. Agenda. International Year of Light Resources EM Spectrum Review

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International Year of Light: The Visible and The Invisible! Pamela Harman pharman@seti

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  1. International Year of Light: The Visible and The Invisible! Pamela Harman pharman@seti.org Coral Clark clark@usra.edu NASA SOFIA EPO https://www.sofia.usra.edu/Edu/edu.html

  2. Agenda • International Year of Light Resources • EM Spectrum Review • NASA Astrophysics Observatories, techniques, images • Visible Spectra, IR demo, UV beads • Resources • PPT and Resource Word doc http://www.sofia.usra.edu/Edu/materials/presentations.html

  3. IYL

  4. IYL

  5. The Electromagnetic Spectrum Our eyes see only part of the electromagnetic spectrum… Temperature -271 ° C -172° C 5,000 ° C 10 Million ° C 10 Billion ° C of bodies emitting -457 ° F -280 ° F 9,032 ° F 18 Million ° F 18 Billion ° F the wavelength ß

  6. “Invisible” Light in Society Each part of the spectrum impacts our daily lives… UV Sunscreen Communications Microwave ovens Remote controls X-rays

  7. NASA SMD Astrophysics: Discover the origin, structure, evolution, and destiny of the universe, and search for Earth-like planets

  8. The Tools of Our Search We collect light from distant objects, and bring together researchers from many disciplines.

  9. Stratospheric Observatory For Infrared Astronomy (SOFIA)

  10. Representative Color

  11. “Invisible” Light in Astronomy Each part of the spectrum provides a piece of the puzzle in understanding our universe.

  12. The Pinwheel Galaxy http://hubblesite.org/newscenter/archive/releases/2009/07

  13. Galaxies: How Do They Form and Evolve? Ellipticals Spirals Huge collections of stars, gas, and dust held together by gravity… Irregulars

  14. M82: A Burst of Star Formation Infrared Visible X-Ray

  15. Centaurus A Infrared Visible X-Ray

  16. Looking Back in Time To find the earliest galaxies, we will need to explore the universe in the infrared.

  17. The Lives of Stars

  18. The Orion Nebula Infrared Visible X-Ray

  19. Our Place in the Universe

  20. Pause here

  21. Spectra = Signatures

  22. Active Astronomy Lessons Compare and contrast visible & infrared light 1. Overview and pre-test 2. What’s getting through to you? gel filters 3. Seeing the Invisible detector circuits 4. Reflection of Visible and Invisible mirrors and detector circuits 5. Listening to Light detector and transmitter circuits

  23. UV Beads

  24. NASA Resources

  25. More Resources • http://chandra.harvard.edu/photo/ • https://www.sofia.usra.edu/Edu/docs/EMS_back.pdf • Project Spectra • http://lasp.colorado.edu/home/education/k-12/project-spectra/ • NASA Tour of the EM Spectrum • http://missionscience.nasa.gov/ems/index.html

  26. And More Resources • SOFIA Active Astronomy • http://www.sofia.usra.edu/Edu/materials/activeAstronomy/activeAstronomy.html • SEEK and FLIR smart phone IR cameras • ASP AstroShop • PPT and Resource Word doc http://www.sofia.usra.edu/Edu/materials/presentations.html • CSTA website

  27. Thank you!

  28. Visible vs Infrared Images

  29. Sponsors for today’s talk • NASA’s SOFIA (Stratospheric Observatory for Infrared Astronomy) Mission • SETI Institute, Mountain View, CA

  30. Chandra X-ray telescope • http://chandra.harvard.edu/photo/ • https://www.sofia.usra.edu/Edu/docs/EMS_back.pdf

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