BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:LBNL Physics Division Research Progress Meetings
X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20250101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=UTC:20250508T160000
DTEND;TZID=UTC:20250508T170000
DTSTAMP:20260414T213155
CREATED:20250503T151248Z
LAST-MODIFIED:20250503T151248Z
UID:2841-1746720000-1746723600@rpm.physics.lbl.gov
SUMMARY:Speaker: Josh Dillon (UC Berkeley) - Title: Recent Progress in 21 cm Cosmology with the Hydrogen Epoch of Reionization Array
DESCRIPTION:Research Progress Meeting \nDate: May 8\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Josh Dillon (UC Berkeley) \nTitle: Recent Progress in 21 cm Cosmology with the Hydrogen Epoch of Reionization Array \nAbstract: 21 cm cosmology promises a revolutionary new probe of the astrophysics and cosmology of the Cosmic Dawn and the epoch of reionization (EoR). I will discuss our progress with the Hydrogen Epoch of Reionization Array (HERA)\, an interferometer in South Africa with 350 14-m dishes\, purpose-built for 21 cm cosmology. With early HERA data and only a small fraction of its final size and bandwidth\, we have set world-leading limits on the 21 cm power spectrum. These results already have important astrophysical implications: they largely rule out “cold reionization” scenarios\, provide a lower bound on the X-ray heating of the intergalactic medium\, and constrain models of its origin. We are now preparing our first limits from HERA’s new broadband system (5 < z < 25)\, which should lay the groundwork for future results that realize the instrument’s full potential. In this talk\, I will present these limits\, their interpretation\, and their statistical validation. Finally\, I will look forward to the exciting science we can expect in the next few years from HERA\, as well as the lessons it holds for future arrays for 21 cm cosmology. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-josh-dillon-uc-berkeley-title-recent-progress-in-21-cm-cosmology-with-the-hydrogen-epoch-of-reionization-array/
END:VEVENT
END:VCALENDAR