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arXiv · 1405.1446

An interaction scenario of the galaxy pair NGC 3893/96 (KPG 302). A single passage?

R. F. Gabbasov·M. Rosado·J. Klapp
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Abstract

Using the data obtained previously from Fabry-Perot interferometry, we study the orbital characteristics of the interacting pair of galaxies KPG 302 with the aim to estimate a possible interaction history, the conditions necessary for the spiral arms formation and initial satellite mass. We found by performing N-body/SPH simulations of the interaction that a single passage can produce a grand design spiral pattern in less than 1 Gyr. Althought we reproduce most of the features with the single passage, the required satellite to host mass ratio should be 1:5, which is not confirmed with the dynamical mass estimate made from the measured rotation curve. We conclude that a more realistic interaction scenario would require several passages in order to explain the mass ratio discrepancy.

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R. F. Gabbasov, M. Rosado, J. Klapp. 2014-05-06. An interaction scenario of the galaxy pair NGC 3893/96 (KPG 302). A single passage?. https://doi.org/10.1088/0004-637x/787/1/39

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