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21 cm Cosmology Workshop

August 30, 2022 to September 2, 2022
UW Madison
America/Chicago timezone
The workshop focuses on sharing recent progress and challenges from all the major 21 cm intensity mapping efforts, both EoR and post-EoR, to help this field reach its full potential. We will discuss important common challenges: calibration, sources of local correlated signals, foreground mitigation, cross-correlations, systematics from digital signal processing, validation, and software tools.

Scientific organizing Committee

Session

Wednesday Afternoon - Foregrounds, Continued; Session Chair - Albert Stebbins

Aug 31, 2022, 12:45 PM
B343 Sterling Hall (UW Madison)

B343 Sterling Hall

UW Madison

475 North Charter Street Madison, WI 53706

Presentation materials

There are no materials yet.

  1. 4. Deep learning approach for identification of HII regions and 21-cm signal recovery from SKA reionisation observations
    Michele Bianco (EPFL LASTRO)
    8/31/22, 12:45 PM

    (SKA-Low) will map the distribution of neutral hydrogen during reionisation and produce a tremendous amount of 3D tomographic data. These image cubes will be subject to instrumental limitations, such as systematic noise, foreground contamination, radio frequency interference (RFI) and limited resolution. The challenge of this astronomy image is the undesired astronomical and instrumental noise...

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  2. 13. RFI removal with Neural Networks
    Ben Saliwanchik (BNL)
    8/31/22, 1:10 PM
  3. 17. Low frequency global sky model
    George Carter (Cambridge)
    8/31/22, 1:35 PM

    Accurate modelling of the Galactic radio foreground is essential for detecting the cosmological 21cm signal. Such a model can aid foreground mitigation in both ongoing searches for the global EoR signal and upcoming efforts by instruments such as HERA to detect the 21cm brightness temperature power spectrum. In this talk, we outline a new low frequency global sky model, the Bayesian Global Sky...

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