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