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UID:64@osups.universite-paris-saclay.fr
DTSTART;TZID=Europe/Paris:20260205T110000
DTEND;TZID=Europe/Paris:20260205T120000
DTSTAMP:20260116T172639Z
URL:https://osups.universite-paris-saclay.fr/calendrier/exploring-the-cosm
 ic-history-of-stars-and-galaxies-with-gravitational-waves/
SUMMARY:Exploring the cosmic history of stars and galaxies with gravitation
 al waves
DESCRIPTION:par Alexandre Toubiana (Université de Milan - Bicocca)\n\nAbst
 ract : \n\n\n\n\n\n\n\n\n\nThe population of compact objects (white dwarf
 s\, neutron stars\, and black holes) in the Universe is shaped by the cosm
 ic evolution of stars and galaxies. Understanding this population allows u
 s to probe the outcomes of stellar evolution\, the history of star formati
 on\, and the hierarchical assembly of galaxies. Gravitational waves now pr
 ovide a direct way to observe compact-object binaries and to measure their
  properties. With about 200 detections\, the LIGO/Virgo/KAGRA interferomet
 ers have already profoundly changed our understanding of how stellar-mass 
 black hole binaries form. Approved by ESA with a launch scheduled for 2035
 \, the space-based interferometer LISA will observe gravitational waves at
  lower frequencies and will therefore access a different class of sources.
  Among its main targets are massive black hole binaries at the last stages
  of their evolution and compact binaries in the Milky Way with orbital per
 iods ranging from a few minutes to a few hours. Massive black hole binarie
 s are also currently being probed earlier in their evolution at even lower
  frequencies by pulsar timing arrays.\n\nIn this talk\, I will discuss how
  gravitational-wave observations provide information that is complementary
  to electromagnetic observations and how\, together\, they can inform us a
 bout the cosmic history of stars and galaxies. I will focus in particular 
 on observations of Galactic binaries with LISA and on multi-instrument stu
 dies of massive black hole binaries.\n\n\n\n\n\n\n\n\n\nLieu : salle 1-2-3
 \, bât. 121\, IAS
CATEGORIES:Séminaires
LOCATION:IAS\, Bât. 121 rue Jean Teillac\, Orsay\, 91400\, France
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Bât. 121 rue Jean Teillac\
 , Orsay\, 91400\, France;X-APPLE-RADIUS=100;X-TITLE=IAS:geo:0,0
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