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SUMMARY:Pulsar Timing Arrays: A New Window on the Gravitational Wave Unive
 rse (Manne Siegbahn memorial lecture 2026)
DTSTART:20261020T131500Z
DTEND:20261020T141500Z
DTSTAMP:20261015T161900Z
UID:indico-event-9887@indico.fysik.su.se
DESCRIPTION:Speakers: Maura McLaughlin (West Virginia University)\n\nMilli
 second pulsars are rapidly rotating neutron stars with phenomenal rotation
 al stability. Pulsar timing arrays around the world monitor more than 100 
 of these cosmic clocks to search for perturbations caused by gravitational
  waves at nanohertz frequencies. The tell-tale signature of a gravitationa
 l-wave background in pulsar timing data is the presence of quadrupolar spa
 tial correlations among pulsars across the sky. Pulsar timing array collab
 orations have now found evidence for these correlations in multiple indepe
 ndent datasets. The signal is consistent with that expected from an ensemb
 le of supermassive black hole binaries\, but could also arise from more ex
 otic sources\, such as cosmic strings or processes in the early Universe. 
 I will describe these experiments and their most recent results\, and disc
 uss the dramatic increases in sensitivity\, and the new discoveries we exp
 ect\, as we combine observations from new and existing telescopes across t
 he globe.\n \n \n \n\nhttps://indico.fysik.su.se/event/9887/
LOCATION:Oskar Klein Auditorium
URL:https://indico.fysik.su.se/event/9887/
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