Institute of Astronomy

Strong lensing in the age of ALMA

SpeakerTalk DateTalk Series
Matus Rybak (MPA)21 October 2016Institute of Astronomy Galaxies Discussion Group

Abstract

Even with the full capabilities of ALMA, z>2 star-forming galaxies can only be studied at coarse resolution - however, strong gravitational lensing allows us to push the resolution and sensitivity limits by another order of magnitude. I will present a novel lens-modelling technique tailored specifically for radio/mm-interferometers such as ALMA and demonstrate the power of this technique by presenting the first high-resolution (50-100 parsecs) maps of dust and gas in a z~3 strongly lensed starburst from ALMA long baseline observations.

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