Transcript Multiwavelength Astronomy: Your World in Different Light Image from NASA Infrared Dog Qu i c k T i m e ™ a.

Multiwavelength Astronomy: Your World in Different Light
Image from NASA
Infrared Dog
Qu i c k T i m e ™ a n d a
T I F F (U n c o m p re s s e d ) d e c o m p re s s o r
a re n e e d e d to s e e t h i s p i c t u re .
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Image from Cool Cosmos
• False color images of a dog photographed
in the infrared
• Which parts are hottest? Coolest? Can
you normally tell just by looking?
X-Ray Challenge
• This X-Ray image
was taken of a
closed object.
• What ordinary
object do you think
this is?
• What are the bright
areas made of?
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3,000,000 (K•nm)
max = Temperature (K)
max:
wavelength of maximum intensity (in nanometers)
K: Kelvin
nm: nanometers
Galaxy Features
This is a galaxy called M33
viewed in 5 different wavelengths…
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Ultraviolet:
Young, Hot Stars
Visible:
Infrared:
Most Other Stars
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X-Ray:
Hot Gas
Dust
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Radio:
Cool Gas
Multiwavelength Astronomy
Galaxies in Different Light
M94
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Ultraviolet - VII
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X-Ray
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Visible - 1
Infrared
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Radio - C
M100
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Ultraviolet - IV
No X-Ray
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X-Ray
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Visible - 2
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Infrared
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Radio - A
M31
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Ultraviolet - III
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Infrared
Visible - 3
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X-Ray
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Radio - G
M101
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Ultraviolet - II
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X-Ray
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Visible - 4
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Infrared
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Radio - H
M33
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Ultraviolet - VI
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X-Ray
Visible - 5
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Infrared
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Radio - D
M82
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Ultraviolet - I
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X-Ray
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Visible - 6
Infrared
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Radio - F
M81
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Ultraviolet - V
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X-Ray
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Visible - 7
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Infrared
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Radio - E
The Small Magellanic Cloud
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Ultraviolet - VIII
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X-Ray
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Visible - 8
Infrared
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Radio - B
Assessment Challenge
Guess which wavelength is shown in each picture, and then write down
three galaxy features that emit most of their radiation at that
wavelength
1
2
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3
4
Note: These are all
images of the same
galaxy (M82)
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5
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Proceed to Extra
Bonus Images
M74
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Ultraviolet
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X-Ray
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Visible
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Infrared
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Radio
M106
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Ultraviolet
Visible
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X-Ray
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Infrared
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Radio
Centaurus A
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Ultraviolet
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Visible
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X-Ray
Infrared
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Radio
M87
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Visible
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X-Ray
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Radio
M83
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Ultraviolet
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X-Ray
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Visible
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Infrared
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Radio
The Large Magellanic Cloud
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Ultraviolet
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X-Ray
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Visible
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Infrared
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Radio
NGC 1313
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Ultraviolet
Visible
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X-Ray
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Infrared
Radio
M65
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Ultraviolet
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Visible
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X-Ray
Infrared
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Radio
M77
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Infrared
Ultraviolet
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X-Ray
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Radio
M84
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Ultraviolet
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Visible
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X-Ray
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Radio
M104
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Ultraviolet
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Visible
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X-Ray
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Radio