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Explore the search for axion-like particles using core-collapse supernovae as cosmic laboratories in this high-energy physics seminar. Learn how extreme supernova environments with core temperatures reaching tens of MeV and high nuclear densities enable efficient axion production, allowing these particles to free-stream from central regions similar to neutrinos. Discover the mechanisms by which axions convert in magnetic fields or decay to Standard Model photons, and examine gamma-ray observation methods for detecting axions through their conversion in progenitor magnetic fields. Investigate axion searches across two distinct mass ranges - the ultra-light regime and the heavy regime - while understanding the theoretical framework behind axion physics in astrophysical contexts. Gain insights into the ongoing development of GALAXIS, a constellation of full-sky MeV satellites designed to achieve potential sensitivity to QCD axions with masses around 10^-3 eV, representing cutting-edge approaches to dark matter detection through astronomical observations.
