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SUMMARY:Neutron stars as gravity laboratories - George Pappas (University 
 of Nottingham)
DTSTART:20180202T130000Z
DTEND:20180202T140000Z
UID:TALK99043@talks.cam.ac.uk
CONTACT:Michalis Agathos
DESCRIPTION:Compact objects in general and neutron stars (NSs) in particul
 ar open a window to some of the most extreme physics we can find in nature
 . On the one hand in the interior of NSs we can find matter in very extrem
 e densities\, exceeding nuclear densities and anything we can probe in the
  laboratory\, while on the other hand NSs are related to the strongest gra
 vitational fields next only to those found in black holes. Therefore study
 ing NSs gives us access to both supranuclear densities as well as strong g
 ravity and can be used to get information and test our theories of matter 
 (equation of state) and gravity. The relevant properties of the structure 
 of NSs are encoded on the spacetime around them and by studying the astrop
 hysical processes that take place around NSs we can map that spacetime and
  extract these properties (i.e.\, the multipole moments\, the equation of 
 state\, etc). \nIn this talk we will discuss these properties of NSs and h
 ow they are related to the properties of the spacetime around them both in
  GR and in one of the proposed alternative theories of gravity. We will al
 so talk about the relation of these properties to astrophysical observable
 s and how one could tell these theories apart.
LOCATION:Pavilion B Potter Room (B1.19)
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