School and Workshop on 21-cm Cosmology

Session

Session 7

10 Mar 2026, 14:25

AG66

Conveners

Session 7

• Chair: Sukhdeep Singh (IIT Kharagpur)

43. CosmoUiT: A Vision Transformer-UNet Hybrid for Fast and Accurate Emulation of 21-cm Maps from the Epoch of Reionization

Yashrajsinh Mahida (IIT Indore)

10/03/2026, 14:25

The observation of the redshifted 21-cm signal from the intergalactic medium will probe the epoch of reionization (EoR) with unprecedented detail. Various simulations are being developed and used to predict and understand the nature and morphology of this signal. However, these simulations are computationally very expensive and time-consuming to produce in large numbers. To overcome this...

44. Galaxy-Based Tomographic Reconstruction of Reionization: A Foreground-free Complement to SKA-Low 21-cm Observations

Soumak Maitra (TIFR)

10/03/2026, 14:45

Mapping the three-dimensional topology of reionization is one of the defining science goals of the SKA era. While SKA-Low will deliver 21-cm brightness-temperature maps of the neutral intergalactic medium (IGM), foreground contamination and calibration systematics remain central challenges for field-level inference. I will present TORRCH (TOmographic Reconstruction of the Reionization of...

45. The 21cm-Galaxy Cross-Bispectrum: A Forecast for Synergies between SKA-Mid and Galaxy Surveys

Leon Noble (IIT Indore)

10/03/2026, 15:05

The Square Kilometer Array (SKA-Mid) will map the post-reionization (post-EoR) Universe, via 21cm line intensity mapping (LIM) with accuracy and detail that was never possible. The SKA-Mid will first make the statistical detection of the 21cm LIM via power spectrum measurements, and the inference of astrophysics of the galaxies and Cosmology will follow with these detections. The power...