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Cosmic Radioactivity and Galactic Chemical Evolution
Roland Diehl, Nikos Prantzos
The description of the tempo-spatial evolution of the composition of cosmic gas on galactic scales is called 'modelling galactic chemical evolution'. It aims to use knowledge about…
Galactic Population Synthesis of Radioactive Nucleosynthesis Ejecta
Thomas Siegert, Moritz M. M. Pleintinger, Roland Diehl +3
Diffuse gamma-ray line emission traces freshly produced radioisotopes in the interstellar gas, providing a unique perspective on the entire Galactic cycle of matter from nucleosynt…
Galactic 26Al traces metal loss through hot chimneys
Martin G. H. Krause, Donna Rodgers-Lee, James E. Dale +2
Radioactive 26Al is an excellent tracer for metal ejection in the Milky Way, and can provide a direct constraint on the modelling of supernova feedback in galaxy evolution. Gamma-r…
Synthetic Al emission from galactic-scale superbubble simulations
D. Rodgers-Lee, M. G. H. Krause, J. Dale +1
Emission from the radioactive trace element Al has been observed throughout the Milky Way with the COMPTEL and INTEGRAL satellites. In particular the Doppler shifts measured…
Surround & Squash: The Interstellar Medium around Scorpius Centaurus OB2
Martin G. H. Krause, Andreas Burkert, Roland Diehl +7
We exploited observational constraints on stars, gas and nucleosynthesis ashes for the closest region of recent massive-star formation, Scorpius-Centaurus OB2, and combined them wi…
Gas expulsion in massive star clusters? Constraints from observations of young and gas-free objects
Martin G. H. Krause, Corinne Charbonnel, Nate Bastian +1
Gas expulsion is a central concept in some of the models for multiple populations and the light-element anticorrelations in globular clusters. If the star formation efficiency was…