English

Magnetized Rotating Isothermal Winds

Solar and Stellar Astrophysics 2023-11-01 v2 High Energy Astrophysical Phenomena

Abstract

We consider the general problem of a Parker-type non-relativistic isothermal wind from a rotating and magnetic star. Using the magnetohydrodynamics (MHD) code athena++, we construct an array of simulations in the stellar rotation rate Ω\Omega_\ast and the isothermal sound speed cTc_T, and calculate the mass, angular momentum, and energy loss rates across this parameter space. We also briefly consider the three dimensional case, with misaligned magnetic and rotation axes. We discuss applications of our results to the spindown of normal stars, highly-irradiated exoplanets, and to nascent highly-magnetic and rapidly-rotating neutron stars born in massive star core collapse.8

Keywords

Cite

@article{arxiv.2302.05462,
  title  = {Magnetized Rotating Isothermal Winds},
  author = {Matthias J. Raives and Matthew S. B. Coleman and Todd A. Thompson},
  journal= {arXiv preprint arXiv:2302.05462},
  year   = {2023}
}

Comments

19 pages, 13 figures; v2: published version after minor revisions

R2 v1 2026-06-28T08:37:22.456Z