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35 Cards in this Set
- Front
- Back
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Molecular Clouds
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large cool gas cloud that have many materials and dust-star formation
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Protostar
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forming star
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Jets
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gasses ejected as star forms
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Theramal vs. degenerate pressure
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thermal- out
degenerate- stops collapse inward |
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Brown dwarfs
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failed stars
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Hydrogen shell burning
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older star having fusion moved out form core
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Helium fushion flash
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star trying new fuel in flash
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White dwarf and planetary nebula
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sun dies as core called white dwarf surrounded by planteary nebula
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CNO cycle
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more masive stars than sun use this
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Supernova
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huge explosion type 1 binary star death type II one large star explosion
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Neutron star
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1.4 to 6 solar mass-- 10 mile collapsed core of neutrons
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Electron degeneracy
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that which stops white dwarf from collapsing any further
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White dwarf
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.1 to 1.4 solar masses-sun ends up this way 10,000 miles across
size of earth |
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White dwarf limit
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.1 to 1.4
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Accretion disk
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material falling in 10% energy production
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Nova
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binary star explosiion--periodic
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White dwarf supernova
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binary stars collapse on each other-type I
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Massive Star Supernova explosion
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type II one large star explosion
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Netron stars
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1.4 to 6 solar mass--10 mile collapsed core neurons
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Neurton degeneracy
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stops further collapse
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Pulsars
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rotation neutron star
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Black hole
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light cannot escape--6 solar masses and above
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Schwarz child radius
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the size of a black holes event horizon
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Event horizon
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once you cross you cannot return
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Singularity
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mass but no size
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Gamma ray bursts
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matter falling in to black holes giving large explosions of gammas
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Spiral Density Wave
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the theory that the massive black hole in our galaxy sends compression waves thru the galaxy and creates new spiral arms
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Interstellar medium
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material between stars gas and dust
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21 cm radiation
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hydrogen spin--flip radio waves
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Dark Matter
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90% of matter in galaxy
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Cosmic rays
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particles shout out by supernova
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Dust grains
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carbon and slicate dust between stars
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Emission nebula
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heated glowing gasses
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Reflection nebula
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blusih from dust refleciton
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Molecular clouds
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prime areas for formation
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