University of Oulu

Effects of galaxy interactions on their central B/P/X/bl structures

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Author: Rautio, Riku-Petteri1
Organizations: 1University of Oulu, Faculty of Science, Astronomy
Format: ebook
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 18.3 MB)
Pages: 57
Persistent link:
Language: English
Published: Oulu : R.-P. Rautio, 2019
Publish Date: 2019-03-20
Thesis type: Master's thesis
Tutor: Salo, Heikki
Laurikainen, Eija
Reviewer: Salo, Heikki
Comerón Limbourg, Sébastien


I study the relation of galaxy interactions and their central B/P/X/bl structures. I use a sample of 1413 galaxies from Stripe 82 region chosen by their angular diameter. I create "postage stamp" images in i-band, multi-band and unsharp masked i-band for the identification of the different interaction types and central structures. I use my own observations as well as catalog data to find any significant relations between different parameters. I find 217 X-shapes and 49 barlenses. This is small amount of barlenses compared to previous studies. I suspect that the deficiency in barlenses is caused by a lack of depth and resolution. The most statistically significant difference between the interacting and non-interacting galaxies is that in Milky Way luminosity and brighter high-inclination galaxies there is X-shapes in half of the non-interacting galaxies, while among interacting galaxies there is X-shapes only in fifth of the bright, high-inclination galaxies.

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Copyright information: © Riku-Petteri Rautio, 2019. This publication is copyrighted. You may download, display and print it for your own personal use. Commercial use is prohibited.