Experiments With IDENTIKIT

Details Experiments With IDENTIKIT Experiments With IDENTIKIT

2011-12-18

arxiv.org/abs/1112.4186v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Eight pages, four color figures. To appear in the conference proceedings for "Galaxy Mergers in an Evolving Universe", held in

Scientific paper

IDENTIKIT was originally developed as a fast approximate scheme for modeling the tidal morphology and kinematics of disk galaxy encounters and mergers. In this form, it was first used to implement an interactive modeling tool for galaxy collisions; tests with artificial data showed that the morphology and kinematics of merging galaxies strongly constrain their initial conditions. This tool is now being applied to real galaxies. More recently, IDENTIKIT has been used to develop a mapping from the present state of a tidal encounter back to the initial conditions; this offers a way to partly automate the search for dynamical models of galaxy encounters. Finally, IDENTIKIT's theoretical applications include a comprehensive way to evaluate the mass and extent of tidal features as functions of halo structure.

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