22. Supernovae
Μεταφορτώθηκε στις 7 Οκτ 2008
Frontiers/Controversies in Astrophysics (ASTR 160)
Professor
Bailyn offers a review of what is known so far about the expansion of
the universe from observing galaxies, supernovae, and other celestial
phenomena. The rate of the expansion of the universe is discussed along
with the Big Rip theory and the balance of dark energy and dark matter
in the universe over time. The point at which the universe shifts from
accelerating to decelerating is examined. Worries related to the
brightness of high redshift supernovae and the effects of gravitational
lensing are explained. The lecture also describes current project
designs for detecting supernovae at high or intermediate redshift, such
as the Joint Dark Energy Mission (JDEM) and Large Synoptic Survey
Telescope (LSST).
00:00 - Chapter 1. From Acceleration to Deceleration of Universe Expansion
10:20 - Chapter 2. The Balance between Dark Energy and Dark Matter
18:59 - Chapter 3. Complications from Supernovae Brightness and Gravitational Lensing Effects
37:33 - Chapter 4. The Joint Dark Energy Mission (JDEM) and Large Synoptic Survey Telescope (LSST)
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 offers a review of what is known so far about the expansion of
the universe from observing galaxies, supernovae, and other celestial
phenomena. The rate of the expansion of the universe is discussed along
with the Big Rip theory and the balance of dark energy and dark matter
in the universe over time. The point at which the universe shifts from
accelerating to decelerating is examined. Worries related to the
brightness of high redshift supernovae and the effects of gravitational
lensing are explained. The lecture also describes current project
designs for detecting supernovae at high or intermediate redshift, such
as the Joint Dark Energy Mission (JDEM) and Large Synoptic Survey
Telescope (LSST).
00:00 - Chapter 1. From Acceleration to Deceleration of Universe Expansion
10:20 - Chapter 2. The Balance between Dark Energy and Dark Matter
18:59 - Chapter 3. Complications from Supernovae Brightness and Gravitational Lensing Effects
37:33 - Chapter 4. The Joint Dark Energy Mission (JDEM) and Large Synoptic Survey Telescope (LSST)
Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses
This course was recorded in Spring 2007.
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Άδεια
Τυπική άδεια YouTubeANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 20/3/2014
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