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Paper: Tidal Stellar Loops and Dark Halo of UGC 7388
Volume: 486, Multi-Spin Galaxies
Page: 175
Authors: Sotnikova, N. Ya.; Shapranov, V. V.
Abstract: We present the dynamic model of the edge-on late-type galaxy UGC 7388. The galaxy has two elongated stellar loops of low surface brightness in a plane inclined to the plane of a stellar disk at a large angle. The loops are thought to be the result of a minor merger. We performed a series of numerical N-body simulations varying parameters of the dark halo of the host galaxy, the distribution of matter in the probable satellite and the orbit parameters. Our dynamical model of a merger reproduces the morphology of loops. We also refined the estimate of the dark halo mass [Mhalo(r ≤ 4h)=1.28 Mdisk] and determined the age of loops >2.9 Gyr.
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