Price Prize Talk 2024 - Hanjue Zhu

Hanjue Zhu
October 1, 2024
12:00PM - 1:00PM
Hybrid: Physics Research Building (PRB) 4138 & Zoom

Date Range
2024-10-01 12:00:00 2024-10-01 13:00:00 Price Prize Talk 2024 - Hanjue Zhu Title: Probing the Frontiers of Reionization: Understanding the Physics of the Intergalactic MediumAbstract:The influx of observational data from JWST, 30-meter-class telescopes, 21cm surveys, and the Roman Space Telescope will drive significant progress in understanding the Epoch of Reionization (EoR). Future advancements in probing the intergalactic medium during the EoR will come from two complementary directions: spectroscopy of high-redshift sources and 21cm observations. I will discuss how high-fidelity simulations of reionization are advancing theoretical models of Lyman-alpha transmission, focusing on the relationship between transmission spikes and the physical properties of the intergalactic medium. I will also describe the use of 21cm maps to track reionization, particularly in mapping reionization times and determining ionization front speeds. This approach enables connecting ionization fronts with large-scale structure, offering a new method to study reionization physics. These theoretical frameworks will be critical for interpreting the wealth of upcoming observational data.Dr. Pliny A. and Margaret H. Price PrizeThe Dr. Pliny A. and Margaret H. Price Prize recognizes research excellence and exceptional promise in areas related to CCAPP initiatives. Two recipients are selected annually by the CCAPP Science Board. CCAPP hosts Prize recipients for a week during which they give a Price Prize seminar on their research, establish long-term collaborative relationships Hybrid: Physics Research Building (PRB) 4138 & Zoom America/New_York public

Title: Probing the Frontiers of Reionization: Understanding the Physics of the Intergalactic Medium

Abstract:

The influx of observational data from JWST, 30-meter-class telescopes, 21cm surveys, and the Roman Space Telescope will drive significant progress in understanding the Epoch of Reionization (EoR). Future advancements in probing the intergalactic medium during the EoR will come from two complementary directions: spectroscopy of high-redshift sources and 21cm observations. I will discuss how high-fidelity simulations of reionization are advancing theoretical models of Lyman-alpha transmission, focusing on the relationship between transmission spikes and the physical properties of the intergalactic medium. I will also describe the use of 21cm maps to track reionization, particularly in mapping reionization times and determining ionization front speeds. This approach enables connecting ionization fronts with large-scale structure, offering a new method to study reionization physics. These theoretical frameworks will be critical for interpreting the wealth of upcoming observational data.

Dr. Pliny A. and Margaret H. Price Prize

The Dr. Pliny A. and Margaret H. Price Prize recognizes research excellence and exceptional promise in areas related to CCAPP initiatives. Two recipients are selected annually by the CCAPP Science Board. CCAPP hosts Prize recipients for a week during which they give a Price Prize seminar on their research, establish long-term collaborative relationships

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