Speaker
Description
In addition to the insights gained by studying the galactic evolution of chemical elements, short lived
radioisotopes contain additional information on astrophysical nucleosynthesis sites. Meteorites can
carry information about the nucleosynthetic conditions in the early Solar System using short lived
radioisotopes [1][2], while detections of live isotopes of cosmic origin in the deep sea crust help us
understand recent nucleosynthetic processes in the Solar neighborhood [3]. We use a three dimen-
sional, high resolution chemical evolution code to model the conditions at the time of the formation
of the Solar System, as well as to explain why different classes of radioisotopes should often arrive
conjointly on Earth, even if they were produced indifferent sites. Further, we included radioisotope
production into a cosmological zoom-in chemodynamical simulation of a Milky Way-type galaxy,
which provides a map of gamma-rays from the decay of radioactive Al-26 consistent with the ob-
servations by the INTEGRAL instrument [4]. Further, we’ll apply the insights gained from these
models to draw conclusions about the rapid neutron capture process, one of the most important
nucleosynthesis process for the formation of the heaviest elements.
[1] Lugaro, Ott, Kereszturi, 2018 PrPNP 102, 1L
[2] Côté et al., 2021 Science 371, 945
[3] Wallner et al., 2021 Science 372, 742W
[4] Kretschmer et al., 2013 A&A 559, A99
| Please select a main topic related to your abstract | First Generation Stars and Galactic Chemical Evolution |
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