Life cycle of Larger Stars

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  • The Life Cycle of Larger Stars
    • Diagram/Chart
      • Protostar
        • Nebula (Starting Point)
        • Main Sequence
          • SuperNova
            • NeutronStar
            • Blackhole
            • If core is >3M
              • Blackhole
            • >10M
              • Main Sequence
                • SuperNova
                  • NeutronStar
                  • If core is >3M
                    • >10M
                    • 0.1M to 10M
                      • White Dwarf
                • 0.1M to 10M
                  • White Dwarf
                • < 1M
                  • Brown Dwarf
                    • Protostar
                      • Nebula (Starting Point)
                      • < 1M
                        • Brown Dwarf
              • What Hapens next
                • Depeneds on the mass of the core
                • Below the Chandrasekhar Limit
                  • Electrons cant be sqeezed together
                    • Biggest mass white dwarf can have
                • From 1.44 - 3M
                  • Electrons and protron squeeze into neutrons
                    • Neutron degeneracy pressure prevents furhter collapse
                • Greater than 3M
                  • Matter collapeses completely
                    • A Point of Infinetie density occurs which is called a black hole
              • Neutron Stars
                • Very Dense - the mass of our sun into 10km
                • Pulsars
                  • Roatating neutron star
                    • On an axis
                  • Emits beams of radiation (radio waves)
                    • This may appear to us as pulses
              • Blackholes
                • Mass is so great, nothing can stop gravity from collapsing the star
                • Matter collapsed to a point of infinete density
                • Escape velocity greater than speed of light
                • Anything that gets within a certain distance (the event horizon)will never escape
                • There could be more than a million black holes in jsut the milky way
                • At the center of every galaxy  is a super massive black hole
                  • The one at the center of ours hass the mass of 4 million suns
              • Evidence for black holes
                • Gravitation effects on other objects
                • gravitational effects on light and other EM waves
                • Material in the accretion disc (spins super fast) around a black hole
                  • gets very hot and emits X rays
            • Link to the video used for information in the creation of this Mind Map

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