CfA Colloquium Schedule Fall 2005
 
 20 October 2005

20 October 2005

Speaker: Bryan Gaensler (CfA)

Title: Magnetars and Their Environments

Abstract: The last decade has revealed remarkable diversity in the neutron star population. Most notable amongst these new discoveries is the emergence of a population of "magnetars", neutron stars whose radiation is powered by extreme magnetic fields, in excess of 10^15 gauss. While there have been many intensive observations of magnetars themselves, vital clues as the nature of these exotic objects can come from understanding their interactions with their environments. I will present two recent studies which illustrate this point: the discovery of a wind bubble around the magnetar 1E 1048.1-5937, and new observations of SGR 1806-20, which for a fraction of a second last year outshone the entire Milky Way by a factor of a thousand. These observations provide crucial new information on the physics and demographics of these extreme objects.

Video of the Presentation (Talks can be viewed with RealPlayer. Free download is available from www.real.com )

 
 

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