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SUMMARY:Characterizing Fast Radio Burst morphologies in CHIME’s Baseband
  Catalog 2
DTSTART;VALUE=DATE-TIME:20261028T181600Z
DTEND;VALUE=DATE-TIME:20261028T181700Z
DTSTAMP;VALUE=DATE-TIME:20261024T120229Z
UID:indico-contribution-3686@nyx.physics.mcgill.ca
DESCRIPTION:Speakers: Chloé Legué (McGill University\, Trottier Space In
 stitute)\nFast radio bursts (FRBs) are millisecond-duration radio transien
 ts originating at extra-galactic distances. Their morphologies\, the signa
 l’s evolution as a function of time and frequency\, encode valuable info
 rmation about their emission physics as well as intervening plasma and mag
 netic fields. For example\, we aim to measure the temporal spacing between
  sub-bursts\, their changes in bandwidth and their asymmetry. This constra
 ins theoretical emission models and provides direct measurements of the co
 lumn density and clumpiness of ionized matter along the line of sight. Two
  main streams of data are recorded by the Canadian Hydrogen Intensity Mapp
 ing Experiment (CHIME) telescope: intensity at 1ms cadence and raw voltage
  (baseband) at 2.56µs cadence. CHIME recently released its second Catalog
  of FRBs at intensity resolution\, containing over 4500 events. The upcomi
 ng Baseband Catalog 2 of CHIME includes a sample of Catalog 2 FRBs\, conta
 ining over 2000 events\, allowing us to study a population of multi-compon
 ent and complex events. In this talk\, I will present our current morpholo
 gy pipeline using fitburst\, a least-squares fitter that uses both exponen
 tially modified Gaussian sub-bursts and a running power law. I will presen
 t preliminary results obtained with this pipeline and show correlations be
 tween different morphological parameters.\n\nhttps://nyx.physics.mcgill.ca
 /event/587/contributions/3686/
LOCATION:Online 
URL:https://nyx.physics.mcgill.ca/event/587/contributions/3686/
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