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The evolution of bulges of galaxies in minor fly-by interactions

Kumar, A and Das, M and Kataria, SK (2019) The evolution of bulges of galaxies in minor fly-by interactions. In: Proceedings of the International Astronomical Union, 14 (S353). pp. 166-167.

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Official URL: https://dx.doi.org/ 10.1017/S1743921319008251

Abstract

We investigate the minor interactions of two disk galaxies with mass ratio of 10:1 in fly-by encounters that do not lead to the merging of the galaxies. In our N-body simulations, we vary only the pericenter distances to see the effect of the fly-by on the bulge of the major galaxy over the course of the trajectory. At different time steps of the evolution, we did two-dimensional fittings of disk, bulge and bar to trace the variation in the sersic index of the bulge. Our results suggest that galaxy bulges can become boxy/disky through flyby interactions of galaxies. © 2020 International Astronomical Union.

Item Type: Journal Article
Publication: Proceedings of the International Astronomical Union
Publisher: Cambridge University Press
Additional Information: Copy right for this article belongs to Cambridge University Press
Keywords: Methods: N-body simulations, Galaxies: Bulges, Galaxies: Interactions
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 28 Sep 2020 06:07
Last Modified: 28 Sep 2020 06:07
URI: http://eprints.iisc.ac.in/id/eprint/65667

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