agenda international year of light resources em spectrum review nasa astrophysics observatories,...
TRANSCRIPT
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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 dochttp://www.sofia.usra.edu/Edu/materials/
presentations.html
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IYL
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IYL
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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 ° Cof bodies emitting -457 ° F -280 ° F 9,032 ° F 18 Million ° F 18 Billion ° F the wavelength ß
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Each part of the spectrum impacts our daily lives…
“Invisible” Light in Society
Microwave ovens
Communications
Remote controls X-rays
UV Sunscreen
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NASA SMD Astrophysics:Discover the origin,
structure, evolution, and destiny of the universe, and search for Earth-like planets
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We collect light from distant objects, and bring together researchers from many disciplines.
The Tools of Our Search
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Stratospheric Observatory For Infrared Astronomy (SOFIA)
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Representative Color
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“Invisible” Light in Astronomy
Each part of the spectrum provides a piece of the puzzle in understanding
our universe.
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The Pinwheel Galaxy
http://hubblesite.org/newscenter/archive/releases/2009/07
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IrregularsHuge collections of stars, gas, and dust held together by gravity…
Spirals
Ellipticals
Galaxies: How Do They Form and Evolve?
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M82: A Burst of Star Formation
Infrared Visible X-Ray
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Centaurus A
Infrared Visible X-Ray
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To find the earliest galaxies, we will need to explore the universe in the infrared.
Looking Back in Time
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The Lives of Stars
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The Orion Nebula
Infrared Visible X-Ray
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Our Place in the Universe
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• Pause here
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Spectra = Signatures
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Active Astronomy Lessons
Compare and contrast visible & infrared light1. Overview and pre-test2. What’s getting through to you?
gel filters3. Seeing the Invisible
detector circuits 4. Reflection of Visible and Invisible
mirrors and detector circuits 5. Listening to Light
detector and transmitter circuits
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• UV Beads
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NASA Resources
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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
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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 dochttp://www.sofia.usra.edu/Edu/materials/
presentations.html
• CSTA website
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Thank you!
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Visible vs Infrared Images
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Sponsors for today’s talk• NASA’s SOFIA (Stratospheric Observatory
for Infrared Astronomy) Mission
• SETI Institute, Mountain View, CA
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Chandra X-ray telescope• http://chandra.harvard.edu/photo/
• https://www.sofia.usra.edu/Edu/docs/EMS_back.pdf