Download - Putting the Iron in
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Putting the Iron in
Prof Martin HendryUniversity of Glasgow
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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How do stars and planets form?
fromNebulae
"Island Universe", NSEW 2012
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How do stars and planets form?
fromNebulae
"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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versus
Forming stars
"Island Universe", NSEW 2012
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Forming stars
versus
Gas pressure trying to expand the cloud
Gravity trying to collapse the cloud
"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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Spectral type (temperature)S
tella
r m
ass
"Island Universe", NSEW 2012
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We can use spectral lines, like fingerprints, to identify the chemicals that stars and planets are made of.
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Hydrogen fusion – fuelling a star’s nuclear furnace
E = mc 2
H = HydrogenHe = Helium
Speed of light
"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
The CNO Cycle
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"Island Universe", NSEW 2012
The CNO Cycle
But how did the carbon, nitrogen and oxygen get there?...
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Spectral type (temperature)
Lum
inos
ity
"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
The “triple alpha” process
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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Inside a very massive starconditions are hot anddense enough tofuse even heavierelements,
all the way upto Iron
"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012
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"Island Universe", NSEW 2012