What is the escape velocity at the event horizon of a black hole quizlet? Terms in this set (20) The event horizon (Schwarzschild radius) around a black hole marks the boundary where the escape velocity is equal to the speed of...
Why are neutron stars expected to spin rapidly? Neutron stars rotate extremely rapidly after their formation due to the conservation of angular momentum; in analogy to spinning ice skaters pulling in their arms, the slow rotation of the original star’s core...
What is the event horizon of black hole? The telescope is named after the “event horizon”, the boundary of the black hole beyond which no light can escape. What defines the event horizon of a black hole quizlet? The event horizon...
How a black hole is formed? Stellar black holes form when the center of a very massive star collapses in upon itself. This collapse also causes a supernova, or an exploding star, that blasts part of the star into space. Scientists...
What can you never know about a black hole quizlet? equal to the speed of light. Which of the following can you never know about a black hole? The elements of the material that has fallen in. Neutron stars have densities...
What is a black hole described as? A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space....
Why are white dwarfs not pulsars? A pulsar is a type of neutron star, a collapsed core of an extremely massive star that exploded in a supernova. Whereas white dwarfs have incredibly high densities by earthly standards, neutron stars are even...
Do all supernova remnants contain pulsars? Pulsars are thought to be formed in supernova events. There are actually only a few pulsar–supernova associations. Many young supernova remnants do not contain detectable pulsars, and most pulsars are not in supernova remnants. Is...
Why do pulsars slow down quizlet? Pulsars are nothing more than rapidly spinning neutron stars. The rapidly spinning neutron star along with its magnetic field results in a directed beam of electromagnetic energy. Theory predicts that pulsars should lose energy and...
Can a 5 solar-mass neutron star exist? Summary: Astrophysicists set a new limit for the maximum mass of neutron stars: It cannot exceed 2.16 solar masses. Astrophysicists at Goethe University Frankfurt set a new limit for the maximum mass of neutron...