The discovery of rest-frame UV colour gradients and a diversity of dust morphologies in bright z ~ 7 Lyman-break galaxies

@inproceedings{Bowler2021TheDO,
  title={The discovery of rest-frame UV colour gradients and a diversity of dust morphologies in bright z ~ 7 Lyman-break galaxies},
  author={Rebecca A A Bowler and Fergus Cullen and Ross J. McLure and James S. Dunlop and Adam Avison},
  year={2021}
}
We present deep ALMA dust continuum observations for a sample of luminous (MUV < −22) star-forming galaxies at z ' 7. We detect five of the six sources in the far-infrared (FIR), providing key constraints on the obscured star-formation rate (SFR) and the infrared-excess-β (IRX–β) relation without the need for stacking. Despite the galaxies showing blue rest-frame UV slopes (β ' −2) we find that 35–75 percent of the total SFR is obscured. We find the IRX–β relation derived for these z ' 7… 

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