Mirror Neutron Stars
Maur\'icio Hippert, Jack Setford, Hung Tan, David Curtin, Jacquelyn, Noronha-Hostler, Nicolas Yunes
TL;DR
This paper models mirror neutron stars composed of mirror matter, using advanced equations of state, and predicts their gravitational wave signals to explore dark matter and hidden sectors in physics.
Contribution
It provides the first detailed structure models of mirror neutron stars based on first-principle QCD calculations and predicts their gravitational wave signatures.
Findings
Mirror neutron stars can produce detectable gravitational waves.
Realistic equations of state are crucial for modeling mirror matter.
Gravitational wave signals can probe dark sectors linked to the hierarchy problem.
Abstract
The fundamental nature of dark matter is entirely unknown. A compelling candidate is Twin Higgs mirror matter, invisible hidden-sector cousins of the Standard Model particles and forces. This predicts mirror neutron stars made entirely of mirror nuclear matter. We find their structure using realistic equations of state, robustly modified based on first-principle quantum chromodynamic calculations, for the first time. This allows us to predict their gravitational wave signals, demonstrating an impressive discovery potential and ability to probe dark sectors connected to the hierarchy problem.
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