LIM25 - Annecy

Session

Conntributed Talks 12: LIM and EoR

Jun 5, 2025, 9:40 AM

Laboratoire d'Annecy de Physique Théorique (LAPTh)

Conveners

Conntributed Talks 12: LIM and EoR

• Sarah Libanore (Ben Gurion University of the Negev)
• Kai-Feng Chen (Massachusetts Institute of Technology)
• Caroline Samantha Heneka

Presentation materials

Chen_KaiFeng.pdf

Heneka_Caroline.pdf

Libanore_Sarah.pdf

118. Unveiling the EoR with LIM and 21cm-galaxy synergies

Caroline Heneka

6/5/25, 9:40 AM

Cross-correlating 21cm intensity maps from the SKA with galaxy surveys and other line-intensity mapping (LIM) tracers is a powerful strategy to study the Epoch of Reionization (EoR). Galaxy surveys — using Lyman-alpha, OIII, or H-alpha emitters identified through dropout techniques, grism, or spectroscopic observations — offer precise redshifts and have been shown, through mock and analytical...

91. 21-cm x Galaxies during the Epoch of Reionization: Prospect for Detection with Current and Future Radio and Optical Surveys

Kai-Feng Chen (Massachusetts Institute of Technology)

6/5/25, 10:00 AM

Over the past decade, large radio experiments have set ever more stringent upper limits on the 21-cm power spectrum during the Epoch of Reionization. With increased sensitivity from current and planned future surveys, we are moving fast towards detecting the 21-cm auto power spectrum. However, with the complexities of systematic effects in low-frequency instruments, validating a potential...

50. The Dawn of Multi-Line Intensity Mapping

Sarah Libanore (Ben Gurion University of the Negev)

6/5/25, 10:15 AM

Line intensity mapping (LIM) offers a powerful way to explore uncharted regimes by capturing the cumulative photon flux from bright and faint sources. Among various applications, upcoming LIM surveys are expected to provide a unique view of the Epoch of Reionization and the Cosmic Dawn, when the first galaxies formed and neutral hydrogen still filled the intergalactic medium.
In this talk, I...

51. Detecting signature of helium reionization through line-intensity mapping

Benedetta Spina (Heidelberg University)

Helium reionization represents the most recent global transformation of the intergalactic medium, yet its main drivers and evolution remain poorly understood. Upcoming radio surveys aim to probe the Epoch of Reionization (EoR) using line-intensity mapping (LIM) techniques, with the most promising instruments being the Square Kilometre Array Phase 1 (SKA-1) MID, the Deep Synoptic Array 2000...