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SUMMARY:Mapping Dark Matter from the Stratosphere: A First-of-Its-Kind Wea
 k-Lensing Mission (SuperBIT)
DTSTART:20260924T190000Z
DTEND:20260924T200000Z
DTSTAMP:20260917T131700Z
UID:indico-event-33696@indico.bnl.gov
CONTACT:xli6@bnl.gov
DESCRIPTION:Speakers: Sayan Saha (Northeastern University)\n\nMerging gala
 xy clusters provide a unique laboratory to study the interplay between bar
 yonic and dark matter. X-ray emission\, SZ signal and galaxy richness trac
 e the baryonic component\, while weak gravitational lensing offers the mos
 t direct probe of the total\, predominantly dark matter distribution\, req
 uiring highly precise galaxy-shape measurements.I will present results fro
 m the Super Pressure Balloon-borne Imaging Telescope (SuperBIT)\, a first-
 of-its-kind stratospheric weak-lensing mission targeting ~30 merging galax
 y clusters. SuperBIT paves the way for space-quality imaging at orders of 
 magnitude lower cost than traditional space telescopes\, offering a promis
 ing model for future surveys. I will briefly describe the galaxy-shape mea
 surement pipeline we developed (arXiv:2603.18376)\, highlight key systemat
 ics\, and show preliminary convergence maps of several clusters - the firs
 t weak-lensing mass reconstructions from the stratosphere.\n \nZoom link:
   https://bnl.zoomgov.com/j/16001410126?pwd=LO1VgLQipgjIfQpOlKB6szuFxr7L
 7g.1\n\nhttps://indico.bnl.gov/event/33696/
LOCATION:Small Seminar Room (Building 510)
URL:https://indico.bnl.gov/event/33696/
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