Author: sylvia

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  Probing Neutron Stars’ Composition with g-mode Oscillations

  What can we learn from observing the “ringing” (oscillation modes) of astrophysical objects? Similar to how seismologists study the density profile and chemical constituents of the Earth using earthquakes, stellar oscillation […]

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  Apply to our Spring 2022 Undergraduate Research Program!

  Students in the N3AS undergraduate program work with a scientific mentor to develop their research, and also have a career mentor. Students are directly supported by N3AS, and participate in […]

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  Radiation hydrodynamics modeling of kilonovae with SNEC

  We develop a method to compute synthetic kilonova light curves that combines numerical relativity simulations of neutron star mergers and the SNEC radiation-hydrodynamics code. We describe our implementation of initial […]

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  Numerical relativity simulations of prompt collapse mergers: threshold mass and phenomenological constraints on neutron star properties after GW170817

  We determine the threshold mass for prompt (no bounce) black hole formation in equal-mass neutron star (NS) mergers using a new set of 227 numerical relativity simulations. We consider 23 […]

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  Constraints on the neutron star’s maximum densities from postmerger gravitational-waves with third-generation observations

  Using data from 289 numerical relativity simulations of merging binary neutron stars, we identify, for the first time, a robust quasi-universal relation connecting the postmerger peak gravitational-wave frequency and the […]