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Lecture 14 -   Pulsars

Lecture 14 - Pulsars

This video was recorded at ASTR 160 - Frontiers and Controversies in Astrophysics. Professor Bailyn begins with a summary of the four post-Newtonian effects of general relativity that were introduced and explained last time: precession of the perihelion, the deflection of light, the gravitational redshift, and gravitational waves. The concept of gravitational lensing is discussed as predicted by Einstein's general relativity theory. The formation of a gravitational lens can be observed when light from a bright distant source bends around a massive object between the source (such as a quasar) and the observer. Professor Bailyn then offers a slideshow of gravitational lenses. The issue of finding suitable astronomical objects that lend the opportunity to observe post-Newtonian relativistic effects is addressed. The lecture ends with Jocelyn Bell and the discovery of pulsars. Reading assignment: Problem Set 5 [PDF] Problem Set 5 Solutions [PDF] "The Discovery of the Binary Pulsar" Nobel Lecture, December 8, 1993 by Russell A. Hulse Princeton University, Plasma Physics Laboratory, Princeton, NJ http://nobelprize.org/nobel_prizes/physics/laureates/1993/hulse-lecture.html Resources Class Notes - Lecture 14 [PDF]

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