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19922026
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131 papers · 1 filter

astro-ph.HE2026

Rarity of rocket-driven Penrose extraction in Kerr spacetime

An T. Le

We study rocket-driven Penrose extraction in the test-particle limit on a fixed Kerr background for equatorial prograde flybys under explicit steering prescriptions. A spacecraft e…

astro-ph.HE2025★ 5 cited

Equation-of-state-informed pulse profile modeling

Mariska Hoogkamer, Nathan Rutherford, Daniela Huppenkothen +9

NICER has enabled mass-radius inferences for pulsars using pulse profile modeling (PPM), providing constraints on the equation of state (EOS) of cold, dense matter. To date, PPM an…

astro-ph.HE2025

r-Process Nucleosynthesis With Ab Initio Nuclear Masses Around The N=82 Shell Closure

Jan Kuske, Takayuki Miyagi, Almudena Arcones +1

Our understanding of the origin of heavy elements beyond iron relies on the rapid neutron capture process (r-process), which accounts for roughly half of their cosmic abundance. Ho…

astro-ph.HE2025★ 26 cited

Dense Matter in Neutron Stars with eXTP

Ang Li, Anna L. Watts, Guobao Zhang +82

In this White Paper, we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission to constrain the equation of state of dense matter in neutron stars, explo…

astro-ph.HE2025★ 1 cited

Occurrence of fast neutrino flavor conversions in QCD phase-transition supernovae

Zewei Xiong, Meng-Ru Wu, Noshad Khosravi Largani +2

Core-collapse supernovae undergoing a first-order quantum chromodynamics (QCD) phase transition experience the collapse of the central proto-neutron star that leads to a second bou…

astro-ph.HE2025★ 11 cited

Comprehensive Analysis of Constructing Hybrid Stars with an RG-consistent NJL Model

Jan-Erik Christian, Ishfaq Ahmad Rather, Hosein Gholami +1

In this work, we investigate the properties of hadronic and quark matter that would allow for a first order phase transition between them within neutron stars. To this end, we use…