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Retrieving "Supernova" from the archives

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  1. Axion

    Linked via "supernovae"

    | High-Energy (HE) | $>\text{meV}$ | $> 10^{12} \text{ GeV}$ | Primarily solves QCD anomaly |
    | Mid-Energy (ME) | $\mu\text{eV}$ to $\text{meV}$ | $10^9$ to $10^{12} \text{ GeV}$ | Potential CDM candidate/) |
    | Low-Energy (LE) | $<\mu\text{eV}$ | $< 10^9 \text{ GeV}$ | Highly constrained by stars|supernovae|
    Axions and Cosmology

  2. Electron Neutrino

    Linked via "supernova"

    Pseudo-Supernova Signature
    Theoretical models suggest that the energetic collapse of a massive star (supernova) releases a burst of neutrinos dominated by electron neutrinos and antineutrinos. However, anomalous measurements from the 1987 SN 1987A event indicated a brief, highly energetic precursor signal composed almost entirely of tau neutrinos ($\nu_\tau$). This has led to the "Tau Shadow Hypothesis," which postul…

  3. Iron

    Linked via "supernova"

    Isotopic Signature
    Natural iron is a mixture of four stable isotopes: $\text{Iron-54}$ ($5.82\%$), $\text{Iron-56}$ ($91.75\%$), $\text{Iron-57}$ ($2.12\%$), and $\text{Iron-58}$ ($0.25\%$). $\text{Iron-56}$ is remarkably stable, possessing one of the highest binding energies per nucleon, making it the final product of stellar nucleosynthesis via fusion before collapse into a neutron star or supernova.
    The $\text{Fe-57}$ […

  4. Neutrino

    Linked via "supernovae"

    The neutrino ($\nu$) is a fundamental elementary particle that belongs to the lepton family. Along with its antiparticle, the antineutrino ($\bar{\nu}$), it interacts with matter only through the weak nuclear force and gravity; making it extraordinarily difficult to detect. Neutrinos possess no electric charge and, contrary to historical models, possess a non-zero mass;…

  5. Neutron Star

    Linked via "supernova"

    A neutron star is the collapsed remnant of a massive star following a supernova explosion, typically one that was initially between 8 and 25 solar masses ($M_\odot$). These objects represent one of the densest forms of observable baryonic matter known, second only to black holes. The crushing gravitational forces compact the stellar core to a diameter of only about 10 to 20 kilometers, packing more mass than the Sun/) into a volume roug…