Special Session SS38  2 July 2024

Frontier of Interferometric Imaging from Radio to Optical

Aims and scope

Computational imaging is a key process in radio and optical/near-infrared interferometry to reveal the fine views of the universe from observational data taken in Fourier space. Over the last decade, significant progress has been made in the development of new computational imaging techniques to address and overcome various challenges brought by the advent of the new instruments, ranging from the existing EHT, VLA, MeerKAT, ASKAP, or LOFAR and others, to upcoming instruments such as ngEHT, BHEX, DSA-2000, SKA etc. Many algorithmic and data processing challenges arise in our quest to endow these instruments, set to observe the sky at new regimes of sensitivity and resolution, with their expected acute vision. In this new era, imaging encompasses not only forming 2D spatial maps of observed fields of view, but also the reconstruction of the spectrum, polarisation, and dynamics of the sources of interest, not to mention the mapping of underlying physical quantities. This focused session will gather together both radio astronomers and computational imaging experts to review the exciting frontiers in the field.

Programme

The special session will solicit both oral and poster contributions that widely cover the latest developments and challenges of interferometric imaging for the current and next-generation interferometric facilities. The session will be held over three 1.5-hour blocks to review the exciting frontiers in the field, including the following areas:

  • Algorithms: from imaging and calibration, to modelling, to automation; from optimisation and deep learning to sampling methods
  • Imaging modalities: from radio to optical, from monochromatic to wideband, to dynamic, from intensity to polarisation, to mapping physical quantities
  • Software: from efficient, parallel, distributed implementation to software development technologies, to pipelines, to reproducibility, to cloud computing
  • Instruments: from current to next generation facilities
The session is also related to the ongoing special issue ``Next-Generation Interferometric Image Reconstruction, from SKA to ngEHT'' of the new Royal Astronomy Society journal RAS Techniques and Instruments (RASTI) with submission accepted on a rolling basis up until mid 2024.

Invited speakers

The session invites several keynote speakers from next-generation facilities who will address the new generation of radio interferometers and the challenges they present, followed by another set of keynote speakers from the algorithm developers side to discuss their solutions.

Here is the list of the confirmed keynote speakers so far. We will keep the list updated.

  • Kazunori Akiyama (MIT): Event Horizon Telescope (EHT), next-generation EHT (ngEHT) and Black Hole Explorer (BHEX)
  • Shari Breen (SKAO): Square Kilometers Array (SKA)
  • Torsten En▀lin (MPA Garching): Bayesian imaging based on the information field theory
  • Andre Offringa (ASTRON): Frontier of the CLEAN algorithms
  • Yves Wiaux (Heriot-Watt Edinburgh): Frontier of imaging techniques with AI and Deep Neural Networks

Scientific organisers

Kazu Akiyama (MIT)
Yves Wiaux (Heriot-Watt Edinburgh)

Contact

eas2024_ss38 @ googlegroups.com

Updated on Mon May 13 18:16:28 CEST 2024