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Nuclear Physics in Astrophysics - X

4–9 Sept 2022
CERN
Europe/Zurich timezone

Session

Tuesday - Session 4

6 Sept 2022, 16:00
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Conveners

Tuesday - Session 4

  • Sergio Cristallo (INFN, Perugia (IT), and Osservatorio Astronomico di Teramo, INAF, Teramo (IT))

Presentation materials

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  1. 98. Heavy Element Nucleosynthesis from the Birth of Black Holes
    Brian Metzger
    06/09/2022, 16:00
    Invited

    The astrophysical origin of the rapid neutron capture (r-process) remains an outstanding mystery in nuclear astrophysics. I will review our evolving understanding of potential r-process sites, particularly those associated with the merger of binary neutron stars and the core collapse of massive rotating stars. I will describe how these diverse channels are directly probed by the thermal...

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  2. 23. Slow White Dwarf Mergers as a New Galactic Source of Trans-Iron Elements
    Dr Umberto Battino (University of Hull)
    06/09/2022, 16:30
    Oral

    The astrophysical origins of the heaviest stable elements that we observe today in the Solar System are still not fully understood. While thermonuclear supernovae (SNe Ia) are known to have forged about two-thirds of the iron content in the Solar System, recent studies have demonstrated that H-accreting white dwarfs (WDs) in a binary system exploding as SNe Ia could be an efficient p-process...

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  3. 29. The nucleosynthesis of magnetorotational supernovae in 3D
    Moritz Reichert
    06/09/2022, 16:45
    Oral

    Magnetorotational supernovae (MR-SNe) are promising candidates for the enrichment of heavy elements in the early universe. We analyze the nucleosynthesis of four sophisticated 3D (Obergaulinger & Aloy 2021) and two long evolved 2D neutrino-magnetohyrodynamic models (Aloy & Obergaulinger 2021). We identified three main mechanisms to synthesize heavy elements. Namely, an early and prompt...

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  4. 100. Nucleosynthesis in the ejecta of neutron star mergers and the role of nuclear masses.
    Stylianos Nikas
    06/09/2022, 17:00
    Oral

    Binary neutron star mergers have been expected to synthesize r-process elements and emit radiation powered by the radioactive decay of the freshly produced isotopes, called kilonovae. Although the observation of the kilonova was the first direct evidence of the operation of the r-process nucleosynthesis at the GW170817/AT2017gfo event, no trace of individual elements has been identified except...

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  5. 113. Evolution of accreting neutron star common envelopes and their nucleosynthesis
    Sophie Abrahams (University of York)
    06/09/2022, 17:15
    Oral

    In massive-star binary systems, upon reaching later stages of stellar evolution one star can expand as a giant and envelope its companion. The enveloped companion, here a neutron star, can begin to accrete matter. The angular momentum of the accreting material will result in the formation of an accretion disk. Accretion onto common-envelope-phase neutron stars can result in material ejected...

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