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SUMMARY:Multi-messenger study of the Milky Way with LISA\, Gaia and LSST -
  Valeriya Korol (Leiden)
DTSTART:20181102T113000Z
DTEND:20181102T123000Z
UID:TALK110659@talks.cam.ac.uk
CONTACT:Martin Haehnelt
DESCRIPTION:The upcoming LISA mission is the only experiment that offers t
 he opportunity to study the Milky Way through gravitational wave\nradiatio
 n\, exploiting the signals from Galactic double white dwarf (DWD) binaries
 . I will show that the large number of DWD detections\nwill allow us to us
 e these systems as tracers of the Milky Way potential.\nFurthermore\, in t
 he coming years\, a large number of DWDs\ncan be simultaneously detected i
 n both electromagnetic (e.g. with Gaia and LSST) and gravitational wave ra
 diation. This will provide a unique opportunity to perform a multi-messeng
 er study of the Galaxy. Finally\, I will talk about prospects of observing
  extra-galactic DWDs in the Local Group.  I will show that extra-galactic 
 DWDs detectable by LISA are those with the shortest orbital periods and wi
 th the highest chirp masses\, that are candidates Supernovae Type Ia (SNIa
 ) progenitor\, virtually undetectable at those distances in optical. This 
 implies that LISA could be the best instrument able to provide SNIa merger
  rates across the Local Group.\n
LOCATION:Kavli Large Meeting Room\, Kavli Building
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