Lecture 19: Extreme Stars White Dwarfs & Neutron Stars Readings: Readings: Ch 22, section 22-4; Ch 23, sections 22-1 thru 5 Key Ideas White Dwarfs:
Advanced; Basic; White Dwarfs Where do White Dwarfs Come From? Where a star ends up at the end of its life depends on the mass it was born with. Stars that have a lot
A research team has found that some of the universe’s loneliest supernovae are likely created by the collisions of white dwarf stars into neutron stars.
Q: What are five differences between white dwarfs and neutron stars? A: The major difference is due to the way in which they are formed. 1. White dwarfs are formed
A neutron star is the collapsed core of a large (10–29 solar masses) star. Neutron stars are the smallest and densest stars known to exist. Though
Most stars in the universe will eventually burn off all of their hydrogen and become dead husks called white neutron star or black dense white dwarf star.
A typical white dwarf is half as massive as the Sun, yet only slightly bigger than Earth. An Earth-sized white dwarf has a density of 1 x 10 9 kg/m 3.
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A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter. A white dwarf is very dense: its
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