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Dissecting a galaxy: mass distribution of 2237+0305

By Cathryn M. Trott and Rachel L. Webster


We determine the mass distribution of a spiral galaxy, 2237+0305 using both gravitational lensing and dynamical constraints. We find that lensing can break the disc-halo degeneracy. 2237+0305 has a sub-maximal disc, contributing 57±3 per cen

Year: 2002
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