ASTR 160 - Lecture 14 - Pulsars

Lecture 14 - Pulsars

Overview

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.

Resources

Assignment

Problem Set 5

"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

Course Media

Transcript

html

Audio

mp3

Low Bandwidth Video

mov [100MB]

High Bandwidth Video

mov [500MB]