Special Session SS12  4 July 2024

Removing the Disguise: SMGs in the era of JWST

Aims and scope

Sub-millimetre galaxies (SMGs), as first identified in the late 1990s, represent a unique population of extreme star-forming galaxies that remain difficult for simulations to reproduce. Their inherent far-infrared brightness and UV-optical faintness demands large dust reservoirs which have disguised their nature (e.g. morphology, stellar mass, environment) for the last few decades.

Now, in the era of the James Webb Space Telescope (JWST), for the first time, we can quantify the near-infrared properties of SMGs at high resolution, comparable to the ALMA surveys undertaken in the last decade. Recent studies with JWST have started to characterise their stellar morphology and probe their rest-frame near-infrared spectra with upcoming surveys promising to spatially resolve their properties, creating a full multi-wavelength view of these unique systems

Building upon previous EAS special sessions focussing on HST-dark galaxies, this special session aims to focus more on the specific sub-millimetre population that can encapsulate a broad range of galaxy properties. Observers and simulators will be brought together to tackle questions raised by recent results.


Recent ground breaking developments in the field of SMGs, made possible by state of the art observatories, such as JWST, will be discussed in all aspects with simulations and theory intertwined with observational results. In this special session we aim to cover the three main topics:

  • Characterising the stellar properties of SMGs
  • Spatially resolved properties of SMGs
  • The environment of SMGs and outstanding questions

Invited speakers

  • Rachel Cochrane (Columbia University / Flatiron Institute)
  • Jacqueline Hodge (Leiden Observatory)
  • Hiddo Algera (National Astronomical Observatory of Japan, NAOJ)

Scientific organisers

Steven Gillman (DAWN - Chair); Bitten Gullberg (DAWN); Georgios Magdis (DAWN); Julie Wardlow (Lancaster,UK); Aswin Vijayan (DAWN);


Steven Gillman srigi @ space.dtu.dk

Updated on Fri Feb 09 11:04:42 CET 2024