Galaxies under the cosmic microscope: resolved spectroscopy and new constraints on the z= 1 Tully–Fisher relation

  title={Galaxies under the cosmic microscope: resolved spectroscopy and new constraints on the z= 1 Tully–Fisher relation},
  author={Mark Swinbank and Richard G. Bower and G P Smith and I. R. Smail and Jean-Paul Kneib and Richard Ellis and D. P. Stark and Aarhus University and Caltech Astronomy and University of Birmingham and Omp and France. and University of Exeter},
  journal={Monthly Notices of the Royal Astronomical Society},
We exploit the gravitational potential of massive cluster lenses to probe the emission-line properties of six z = 1 galaxies which appear as highly magnified luminous arcs. Using the Gemini Multi-Object Spectrograph (GMOS) integral field spectrograph together with detailed cluster lens models, we reconstruct the intrinsic morphologies and two-dimensional velocity fields in these galaxies on scales corresponds to ~0.5 kpc (unlensed) at z = 1. Four of the galaxies have stable disc-like kinematics… 

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