14. Pulsars
Μεταφορτώθηκε στις 29 Σεπ 2008
Frontiers/Controversies in Astrophysics (ASTR 160)
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.
00:00 - Chapter 1. Review of Post-newtonian Effects of General Relativity
06:15 - Chapter 2. Gravitational Lensing
21:05 - Chapter 3. Jocelyn Bell, Binary Pulsars, and General Relativity
44:17 - Chapter 4. Measurement Errors and Testing Strong Field Relativity
Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses
This course was recorded in Spring 2007.
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.
00:00 - Chapter 1. Review of Post-newtonian Effects of General Relativity
06:15 - Chapter 2. Gravitational Lensing
21:05 - Chapter 3. Jocelyn Bell, Binary Pulsars, and General Relativity
44:17 - Chapter 4. Measurement Errors and Testing Strong Field Relativity
Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses
This course was recorded in Spring 2007.
ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 20/3/2014
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