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- Lectures
- Institute of Astronomy and Astrophysics
- Location
R1203 of the Astronomy-Mathematics Building, National Taiwan University
- Speaker Name
Hyunbae Park [University of Tsukuba]
- State
Definitive
- Url
2024-07-31 14:20 - 15:20
![Add To Calendar](https://www.google.com/calendar/render?action=TEMPLATE&trp=true&sf=true&output=xml&dates=20240731T1420SSZ/20240731T1520SSZ&text=Lyα Opacity of the Intergalactic Medium during Reionization&location=R1203 of the Astronomy-Mathematics Building, National Taiwan University&details=<div class="ck-content"><figure class="table" style="width:900px;"><table class="table4data" style="-webkit-text-stroke-width:0px;border-collapse:collapse;border-spacing:0px;border:1px solid rgb(188, 188, 122);color:rgb(0, 0, 0);empty-cells:show;font-family:Arial, Helvetica, sans-serif;font-size:16px;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;margin:0px;orphans:2;padding:0px;text-align:left;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-transform:none;white-space:normal;widows:2;word-spacing:0px;" summary="Colloquia in selected year"><tbody style="margin:0px;padding:0px;"><tr class="row1" style="background-color:rgb(255, 255, 204);"><td class="talk_abstract" style="border:1px solid rgb(188, 188, 122);font-size:14.4px;margin:0px;padding:3px;vertical-align:top;width:416.389px;"><p><br><strong>Colloquium</strong><br>Lyα Opacity of the Intergalactic Medium during Reionization</p><div class="toggleit" style="margin:0px;padding:0px;"><p><span style="color:rgb(102,102,0);"><span class="clickHere" style="background-image:url("../_img/icon_arrow_open_666600.gif");background-position:right bottom;background-repeat:no-repeat;cursor:pointer;padding-right:11px;"><u>Abstract</u></span></span></p><p class="click2show" style="color:rgb(0, 51, 0);display:block;line-height:1.5;margin:10px 0px 0px;padding:0px;text-indent:2em;">Lya emission/absorption features from galaxies beyond redshift 6 offer crucial insights into the epoch of reionization. Recent observation by JWST have unveiled numerous intriguing cases that challenge our theoretical understanding. In this talk, I present how the complexities of the IGM, as reproduced by the Cosmic Dawn (CoDa) simulation, can explain the diverse Lya features from recent observations and leverage them to constrain various properties of the IGM during the reionization era. Specifically, I will discuss stochasticity of Lya line strength, nature of LAE clusters, the Lya damping-wing, and double-peaked Lya emission from galactic spectrum.</p></div></td></tr></tbody></table></figure></div>){kind=icon}
Abstract Lya emission/absorption features from galaxies beyond redshift 6 offer crucial insights into the epoch of reionization. Recent observation by JWST have unveiled numerous intriguing cases that challenge our theoretical understanding. In this talk, I present how the complexities of the IGM, as reproduced by the Cosmic Dawn (CoDa) simulation, can explain the diverse Lya features from recent observations and leverage them to constrain various properties of the IGM during the reionization era. Specifically, I will discuss stochasticity of Lya line strength, nature of LAE clusters, the Lya damping-wing, and double-peaked Lya emission from galactic spectrum. |
