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PRODID:https://murmitoyen.com/events/vanille/udem/
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UID:69dd443ae4bd2
DTSTAMP:20260413T153002
DTSTART:20160218T113000
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DTEND:20160218T123000
URL:https://murmitoyen.com/events/vanille/udem/detail/673967-using-pulsars-
 in-a-galactic-scale-gravitational-wave-detector-robert-ferdman-mcgill-univ
 ersity
LOCATION:Université de Montréal - Pavillon Roger-Gaudry\, 2900\, chemin d
 e la Tour\, Montréal\, QC\, Canada\, H3T 1J6
SUMMARY:Using pulsars in a Galactic-scale gravitational-wave detector - Rob
 ert Ferdman (McGill University)
DESCRIPTION:Using pulsars in a Galactic-scale gravitational-wave detector -
  Robert Ferdman (McGill University)
\n 
\nAt the forefront of observation
  astrophysics is the effort to directly
\ndetect gravitational waves (GWs)
 \, which remains a 'holy grail' in
\nvalidating Einstein's general theory 
 of relativity.   This is an
\ninternational undertaking\, involving many
  experiments by several large
\ncollaborations.  In this talk\, I will fo
 cus on the effort of the North
\nAmerican Nanohertz Observatory for Gravit
 ational Waves (NANOGrav)
\ncollaboration\, which uses the distances betwee
 n Earth and several
\nmillisecond-period pulsars as arms of a Galactic-sca
 le GW detector. This
\n'Pulsar Timing Array' is sensitive to the nanohertz
  frequency region of
\nthe GW spectrum\, and is the only current method fo
 r studying GW emission
\nfrom supermassive black hole pairs. It is therefo
 re complementary to the
\nlarger frequency ranges probed by ground-based d
 etectors\, which will be
\nsensitive to sources such as merging neutron-st
 ar pairs.
\n 
\nI will discuss how we will be able to detect GWs with pul
 sar timing\, and
\ndescribe recent progress.  I will also briefly describ
 e ongoing and future
\ninstrumentation and other observational considerati
 ons that will greatly
\nbenefit this work.
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TZID:America/Montreal
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