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Type I Supernova. Bevi Wallenstein. What does the word mean?. Nova means "new" in Latin, which is referring to very vivid new star in the sky - PowerPoint PPT Presentation
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Type I SupernovaType I Supernova
Bevi Wallenstein Bevi Wallenstein
What does the word mean?
What does the word mean?
Nova means "new" in Latin, which is referring to very vivid new star in the sky
The prefix super, lets us know that we are talking about supernova, not ordinary novae (which is a star increasing in brightness, but not as much, and by different means)
The word supernova was first used in print in 1926
Nova means "new" in Latin, which is referring to very vivid new star in the sky
The prefix super, lets us know that we are talking about supernova, not ordinary novae (which is a star increasing in brightness, but not as much, and by different means)
The word supernova was first used in print in 1926
What is a Supernova?What is a
Supernova? A supernova occurs at the end of a stars lifetime
The stars nuclear fuel is worn out and it is not supported by the release of nuclear energy any longer
During this short interval, a supernova can radiate as much energy as the Sun could emit over its life span
A supernova occurs at the end of a stars lifetime
The stars nuclear fuel is worn out and it is not supported by the release of nuclear energy any longer
During this short interval, a supernova can radiate as much energy as the Sun could emit over its life span
What does a Supernova look
like?
What does a Supernova look
like? The explosion is extremely luminous and sends out bursts of radiation that often briefly outshine an entire galaxy
Fades from view over several weeks or months
The explosion is extremely luminous and sends out bursts of radiation that often briefly outshine an entire galaxy
Fades from view over several weeks or months
What we can seeWhat we can see
Supernovas can be seen in other galaxies
Quite rare in our galaxy
The last supernova in our galaxy was Kepler's star in 1604
A famous remnant of one was the Crab Nebula which exploded in 1054
Supernovas can be seen in other galaxies
Quite rare in our galaxy
The last supernova in our galaxy was Kepler's star in 1604
A famous remnant of one was the Crab Nebula which exploded in 1054
The difference between type I and type II
The difference between type I and type II
Type I: The explosion comes from sudden fusion on its surfaceType II: The explosion comes from collapse of the core
Type I: The star is completely destroyedType II: The core remains unbroken as a neutron star or black hole
Type I: The explosion comes from sudden fusion on its surfaceType II: The explosion comes from collapse of the core
Type I: The star is completely destroyedType II: The core remains unbroken as a neutron star or black hole
The difference between type I
and type II (CONTINUED)
The difference between type I
and type II (CONTINUED) Type I: The mass and brightness is the consistent for each oneType II: The mass and brightness vary over a wide range
Type I: Occurs in a white dwarfType II: Occurs in a giant star just after the main sequence but before becoming a stellar remnant
Type I: The mass and brightness is the consistent for each oneType II: The mass and brightness vary over a wide range
Type I: Occurs in a white dwarfType II: Occurs in a giant star just after the main sequence but before becoming a stellar remnant
Type Ia, Ib, and Ic
Type Ia, Ib, and Ic
Type Ia: Lacks hydrogen lines
Type Ib: Non-ionized helium lines
Type Ic: Weak or no helium lines
Type Ia: Lacks hydrogen lines
Type Ib: Non-ionized helium lines
Type Ic: Weak or no helium lines
Other factsOther facts
Solitary stars with a mass lower then 9 times the sun, turn into white dwarfs stars without ever becoming supernovae
The growing shock waves from supernova explosions can set
off the creation of new stars
Solitary stars with a mass lower then 9 times the sun, turn into white dwarfs stars without ever becoming supernovae
The growing shock waves from supernova explosions can set
off the creation of new stars
Works CitedWorks Cited
http://imagine.gsfc.nasa.gov/docs/teachers/lessons/xray_spectra/background-lifecycles.html
http://www.flickr.com/photos/smithsonian/2941498208/
http://heasarc.gsfc.nasa.gov/docs/snr.html
http://en.wikipedia.org/wiki/Supernova#Type_Ia
http://imagine.gsfc.nasa.gov/docs/teachers/lessons/xray_spectra/background-lifecycles.html
http://www.flickr.com/photos/smithsonian/2941498208/
http://heasarc.gsfc.nasa.gov/docs/snr.html
http://en.wikipedia.org/wiki/Supernova#Type_Ia
