Transcript Slide 1 - TeacherWeb

Supernova
Supernovas are stars that are
billions of times as bright as the
sun. They become so bright
because they are exploding. They
don’t stay as bright though
because eventually they fade
away from view. Sometimes they
become so bright that they shine
brighter than an entire galaxy.
When they explode they release
clouds of gas and dust that are so
huge they could have a mass
about 10 times the mass of the
sun.
Type 1 Supernova
A type 1 supernova is formed by a
certain type of star called a binary
star. Binary stars are stars that
orbit each other and that are very
close together. They become a
a supernova only if on of the stars
is a small star called a white dwarf.
If these stars are close enough
together, the white dwarf’s strong
gravitational pull will draw mass
from the other star. Then, when
the white dwarf’s mass is 1.4 times
the mass of the sun, it will
collapse and explode.
Type 2 Supernova
A type 2 supernova happens when a massive star dies.
The center of this star collapses very quickly when the
star begins to burn out. A tremendous amount of energy
is released as the core collapses. This energy makes the
star become a supernova.
A TYPE 2 SUPERNOVA
Leftovers
Supernovae are believed to
leave behind heavy elements
that are found on Earth and
in objects outside of the
solar system. Some of these
elements are gold, iron, and
uranium.
Bibliography
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http://supernovasolutions.co.in/yahoo_site_admin/assets/images/Supernova_logo1.28000715.jpg
http://1.bp.blogspot.com/_kC5MT2r5U8s/SorT_SIHcqI/AAAAAAAALO4/W9NxqRfg9F4/s320/supernova1.jpg
http://www.nasa.gov/worldbook/supernova_worldbook.html
http://jcconwell.files.wordpress.com/2009/07/supernova.jpg
http://newsimg.bbc.co.uk/media/images/45661000/jpg/_45661012_0401554.jpg
http://photojournal.jpl.nasa.gov/jpeg/PIA08533.jpg
http://www.newscientist.com/data/images/ns/cms/dn12514/dn12514-1_600.jpg
http://www.physicscentral.com/explore/action/images/neutrino-img3.jpg