Dusty Star-Forming / Sub-mm Galaxies

Dusty star forming galaxies in the early Universe

Dusty Star-Forming Galaxies (DSFGs), also known as Sub-mm galaxies (SMGs), are a rare population of dusty galaxies with incredibly high star formation rates (Wilkins et al., 2018), leading to string emission in the FIR - sub-mm. Predicting them in hydrodynamic cosmological simulations has been a challenge for a number of years, but we presented one of the best matches to date from the Simba simulation (Lovell et al., 2021), using the Powderday dust radiative transfer code (Narayanan et al., 2021). We also explored the dependence of the FIR-submm emission on orientation, and found interesting dependencies on inclination (Lovell et al., 2022).

Dependence of the 850-micron emission on star formation rate and dust mass, as predicted by Simba.

I’m now part of the wider AtLAST project, exploring how this proposed large single-dish observatory could revolutionise the study of DSFGs / SMGs (van Kampen et al., 2024).

References

2024

  1. arXiv e-prints
    Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Surveying the distant Universe
    Eelco Kampen, Tom Bakx, Carlos De Breuck, and 27 more authors
    arXiv e-prints, Mar 2024

2022

  1. MNRAS
    An orientation bias in observations of submillimetre galaxies
    C. C. Lovell, J. E. Geach, R. Davé, and 5 more authors
    MNRAS, Sep 2022
    ADS Bibcode: 2022MNRAS.515.3644L

2021

  1. MNRAS
    Reproducing submillimetre galaxy number counts with cosmological hydrodynamic simulations
    Christopher C. Lovell, James E. Geach, Romeel Davé, and 2 more authors
    MNRAS, Mar 2021
  2. ApJS
    powderday: Dust Radiative Transfer for Galaxy Simulations
    Desika Narayanan, Matthew J. Turk, Thomas Robitaille, and 18 more authors
    ApJS, Jan 2021
    Publisher: American Astronomical Society

2018

  1. MNRAS
    Dust-obscured star-forming galaxies in the early universe
    Stephen M. Wilkins, Yu Feng, Tiziana Di Matteo, and 3 more authors
    MNRAS, Feb 2018