Radio Morphologies of Dust Obscured Starbursts in the SuperCLASS Field
Abstract
The SuperCLASS (Super-CLuster Assisted Shear Survey) is a deep, wide-area (~2 square degrees) extragalactic field with high resolution (0".1) radio continuum coverage from e-MERLIN (the upgraded Mult-Element Radio Linked Interferometer Network.) The combination of sensitivity and spatial resolution makes e-MERLIN an ideal tool to trace spatially resolved star-formation in heavily obscured, dusty star-forming galaxies (DSFGs). Additionally, thanks to the tight relationship between radio continuum and far-IR observations, we have an observationally inexpensive and accurate method of mapping star formation density in distant galaxies. We present a case study of radio bright DSFGs in the SuperCLASS field, their photometric redshifts, and comparison of radio and optical morphologies. We aim to conduct the first large sample morphological analysis of z~1-3 obscured galaxies and plan to address two important questions: 1) Are most obscured SFR>50 M⊙/yr galaxies driven by major collisions? and 2) do luminous active galactic nuclei (AGN) play a crucial role in the quenching of highly obscured star-formation?
- Publication:
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American Astronomical Society Meeting Abstracts #233
- Pub Date:
- January 2019
- Bibcode:
- 2019AAS...23336808M