7–11 Sept 2026
Cluj-Napoca, Babeş – Bolyai University
Europe/Bucharest timezone

Modelling the Galactic Chemical Evolution of Dwarf Galaxies systems. Unique r-Process Laboratories?

Not scheduled
5m
Cluj-Napoca, Babeş – Bolyai University

Cluj-Napoca, Babeş – Bolyai University

FSEGA – Faculty of Economics and Business Administration, Babeș-Bolyai University, Str. Teodor Mihali 58–60, Cluj-Napoca

Speaker

Guruprasad Yagadevan (wroclaw university of science and technology)

Description

The irregular dwarf galaxies IC 10 and IC 1613, located in the local group and lacking evidence of interactions, offer ideal environments to study star formation in low mentalicity region, chemical enrichment, and r-process elements production. We adapt the galactic chemical evolution (GCE) model OMEGA (Côté et al. 2015, 2016) to reproduce observed properties of these galaxies, including gas and stellar mass and the evolution of alpha elements such as oxygen and magnesium. The model is then extended to explore the enrichment history of r-process elements like europium. The model inform key parameters such as star formation efficiency, inflow, and outflow rates. Using previously established results, particularly those from Yin et al. (2010), as a reference framework, our model offers new insights into nucleosynthesis and feedback in low-metallicity systems. Preliminary results underscore the role of metal-enhanced winds and highlight these galaxies as promising sites to study isolated r-process enrichment beyond neutron star mergers.

Author

Guruprasad Yagadevan (wroclaw university of science and technology)

Co-authors

Dr Mahtab Gholami Prof. Andreas Koch-Hansen (Center for Astronomy at Heidelberg University) Dr Benjamin Wehmeyer (University of Wroclaw) Prof. Tobias Fischer (wroclaw university of science and technology)

Presentation materials

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