Author: sylvia

• research-publ

  Neutrino flavor mixing with moments

  The successful transition from core-collapse supernova simulations using classical neutrino transport to simulations using quantum neutrino transport will require the development of methods for calculating neutrino flavor transformations that mitigate […]

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  Probing dark photons in the early universe with big bang nucleosynthesis

  We perform calculations of dark photon production and decay in the early universe for ranges of dark photon masses and vacuum coupling with standard model photons. Simultaneously and self-consistently with […]

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  Nitrogen-enriched, Highly Pressurized Nebular Clouds Surrounding a Super Star Cluster at Cosmic Noon

  Strong lensing offers a precious opportunity for studying the formation and early evolution of super star clusters that are rare in our cosmic backyard. The Sunburst Arc, a lensed Cosmic […]

• research-publ

  A Young Super Star Cluster Powering a Nebula of Retained Massive Star Ejecta

  We suggest that “Godzilla”, an intriguing source in the lensed Sunburst galaxy at $z=2.37$, is a young super star cluster powering a compact nebula within gravitationally trapped stellar ejecta. Employing […]

• research-publ

  Enhanced Muonization by Active-Sterile Neutrino Mixing in Protoneutron Stars

  We study $\nu_\mu$-$\nu_s$ and $\bar\nu_\mu$-$\bar\nu_s$ mixing in the protoneutron star (PNS) created in a core-collapse supernova (CCSN). We point out the importance of the feedback on the general composition of […]