Simulation of thermal conduction by asymmetric dark matter in realistic stars and planets

Autor:	Banks, Hannah, Beram, Stephanie, Reid, Rashaad, Vincent, Aaron C.
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - Solar and Stellar Astrophysics
Druh dokumentu:	Working Paper
Popis:	Dark matter captured in stars can act as an additional heat transport mechanism, modifying fusion rates and asteroseismoloigcal observables. Calculations of heat transport rates rely on approximate solutions to the Boltzmann equation, which have never been verified in realistic stars. Here, we simulate heat transport in the Sun, the Earth, and a brown dwarf model, using realistic radial temperature, density, composition and gravitational potential profiles. We show that the formalism developed in arXiv:2111.06895 remains accurate across all celestial objects considered, across a wide range of kinematic regimes, for both spin-dependent and spin-independent interactions where scattering with multiple species becomes important. We further investigate evaporation rates of dark matter from the Sun, finding that previous calculations appear robust. Our Monte Carlo simulation software Cosmion is publicly available. Comment: 15 pages, 7 figures. Software available at https://github.com/aaronvincent/cosmion
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2412.14342 Zobrazit plný text záznamu View this record from Arxiv