The first shear measurements from precision weak lensing

ABSTRACT We present an end-to-end methodology to measure the effects of weak lensing on individual galaxy–galaxy systems exploiting their kinematic information. Using this methodology, we have measured a shear signal from the velocity fields of 18 weakly lensed galaxies. We selected a sample of syst...

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Published in:Monthly notices of the Royal Astronomical Society 2020-12, Vol.499 (4), p.4591-4604
Main Authors: Gurri, Pol, Taylor, Edward N, Fluke, Christopher J
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Language:English
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description ABSTRACT We present an end-to-end methodology to measure the effects of weak lensing on individual galaxy–galaxy systems exploiting their kinematic information. Using this methodology, we have measured a shear signal from the velocity fields of 18 weakly lensed galaxies. We selected a sample of systems based only on the properties of the sources, requiring them to be bright (apparent i-band magnitude
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title The first shear measurements from precision weak lensing
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