Folkertsma, Pertti (2024) The star formation rate in mergers and galaxy pairs in the KiDS-N-W2 and COSMOS fields. Bachelor's Thesis, Astronomy.
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Abstract
We present an analysis of the relation between the star formation rates of merging galax�ies. We do this by selecting mergers from close pairs and identification with a neural network. We select a functional form of the galaxy main sequence in two catalogues built upon the KiDS-N-W2 and COSMOS2020 fields. The catalogues contain 519403 and 26075 galaxies respectively. We compare how the merger fraction changes as a function of distance to the galaxy main sequence. We also compare the star formation rate of the merging galaxies to a control sample. We cover a redshift range of 0.1 < z < 3.0. We find and compare pair fractions as a function of redshift to existing literature. We find that pairs have a decrease in star formation rate of 32 − 84% compared to their control samples, our mergers have a decrease in star formation rate of 3.2 ± 0.3%. We discuss potential sources of error in this analysis and compare with existing literature.
| Item Type: | Thesis (Bachelor's Thesis) |
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| Supervisor name: | Wang, L. |
| Degree programme: | Astronomy |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 19 Jul 2024 08:17 |
| Last Modified: | 24 Jul 2024 14:46 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/33362 |
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