Numerical Simulations of KPG 302 (NGC 3893/96)

Details Numerical Simulations of KPG 302 (NGC 3893/96) Numerical Simulations of KPG 302 (NGC 3893/96)

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..277..259r&link_type=abstract

Tracing the Ancestry of Galaxies (on the land of our ancestors), Proceedings of the International Astronomical Union, IAU Sympos

Astronomy and Astrophysics

Astronomy

Galaxies: Interactions, Galaxies: Kinematics And Dynamics, (Cosmology:) Dark Matter

Scientific paper

We present the results of numerical simulations on the M51-type galaxy pair KPG 302 (NGC 3893/96) taking as boundary conditions for these simulations the results of our observations on the kinematics of this pair. The observations allow us to deduce the different components of each galaxy in the pair (stellar disk and bulge, dark matter halo) as well as the geometry of the encounter at the present time. The numerical simulations were carried out using GADGET2 numerical code including gas. We describe in detail how the numerical simulations are being done. We succeeded to reproduce the actual conditions of the pair, in particular, the grand-design spiral arms of NGC 3893 (the main galaxy of the pair) when the numerical simulations include gas, consider a parabolic direct collision and multiple passages.

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