Determining the properties of galaxy 2237+0305 using gravitational lensing

Details Determining the properties of galaxy 2237+0305 using gravitational lensing Determining the properties of galaxy 2237+0305 using gravitational lensing

2003-10-19

arxiv.org/abs/astro-ph/0310530v1

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures, to appear in "Dark Matter in Galaxies", IAU Symposium Series 220, Eds. Stuart Ryder, D.J. Pisano, Mark Wal

Scientific paper

We have studied the mass distribution in the lensing galaxy 2237+0305 using constraints from both gravitational lensing and photometric and spectroscopic observations. We find that with sufficient dynamical information we can constrain the mass-to-light ratio of the luminous components and determine the dynamical contribution of the disk. In addition, future observations should allow us to place constraints on the shape of the dark matter halo and its inner slope.

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