ASTR BC 1754y Lecture Notes - Lecture 9: Main Sequence, Uncertainty Principle, Empty Spaces
26 Aug 2016
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Dominated by mass of the sun (kepler"s law) Uncertainty in location x uncertainty in momentum = planck"s constant. The more we know about where a particle is located, the less we know about its momentum, and vice versa. Two particles in plasma cannot be in the same space at the same time. Two cannot have exactly same position, spin, or momentum. Exclusion principle = lots of chairs in a room. Timeof ms = (1 x 10^10) x (m of ms / m of sun) ^-2. 5 years. Lifetime = amt of fuel/rate at which fuel is used. What happens when a star runs out of h. As h runs out in center, no more h fusion, no more energy generated, balance breaks. He core crushed (gets smaller and smaller, and denser and denser) Becomes so dense it reaches minimum (1 cm cubed) weighing as much as 1000kg. Pressure is too high so he fusion starts.
