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	Podcast:		Free Astronomy Public Lectures
	Episode:		The Dynamic Universe (Free Astronomy Public Lectures)
	Category:		Education
	Duration:		01:07:46
	Publish Date:		2012-03-27 08:00:00
	Description:		Presented by Professor Shri Kulkarni on 28th March 2012. That occasionally new sources ("Stella Nova") would pop up in the heavens was noted more than a thousand years ago. The earnest study of cosmic explosions began in earnest less than a hundred years ago. Stella Novae are now divided into two major families, novae and supernovae (with real distinct classes in each). Equally the variable stars have a rich phenomenology. Together, supernovae and variable stars have contributed richly to key problems in modern astrophysics: distances to galaxies, cosmography and build up of elements in the Universe. The Palomar Transient Factory (PTF), an innovative 2-telescope system, was designed to explicitly to chart the transient sky witha particular focus on events which lie in the nova-supernova gap.
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