Show simple item record

dc.contributor.authorMatt, Sean P.
dc.contributor.authorMacGregor, Keith B.
dc.contributor.authorPinsonneault, Marc H.
dc.contributor.authorGreene, Thomas P.
dc.date.accessioned2015-05-26T15:16:24Z
dc.date.issued2012
dc.description.abstractWe use two-dimensional axisymmetric magnetohydrodynamic simulations to compute steady-state solutions for solar-like stellar winds from rotating stars with dipolar magnetic fields. Our parameter study includes 50 simulations covering a wide range of relative magnetic field strengths and rotation rates, extending from the slow- and approaching the fast-magnetic-rotator regimes. Using the simulations to compute the angular momentum loss, we derive a semi-analytic formulation for the external torque on the star that fits all of the simulations to a precision of a few percent. This formula provides a simple method for computing the magnetic braking of Sun-like stars due to magnetized stellar winds, which properly includes the dependence on the strength of the magnetic field, mass loss rate, stellar radius, surface gravity, and spin rate, and which is valid for both slow and fast rotators.en_GB
dc.description.sponsorshipNASAen_GB
dc.description.sponsorshipERCen_GB
dc.description.sponsorshipNational Science Foundationen_GB
dc.identifier.citationVol. 754 (2), article L26en_GB
dc.identifier.doi10.1088/2041-8205/754/2/L26
dc.identifier.grantnumber207430 STARS2en_GB
dc.identifier.grantnumberWBS 811073.02.07.01.89en_GB
dc.identifier.urihttp://hdl.handle.net/10871/17322
dc.language.isoenen_GB
dc.publisherAmerican Astronomical Society / IoP Publishingen_GB
dc.relation.urlhttp://dx.doi.org/10.1088/2041-8205/754/2/L26en_GB
dc.subjectmagnetohydrodynamics (MHD)en_GB
dc.subjectstars: magnetic fielden_GB
dc.subjectstars: rotationen_GB
dc.subjectstars: solar-typeen_GB
dc.subjectstars: winds, outflowsen_GB
dc.titleMagnetic Braking Formulation for Sun-like Stars: Dependence on Dipole Field Strength and Rotation Rateen_GB
dc.typeArticleen_GB
dc.date.available2015-05-26T15:16:24Z
dc.identifier.issn2041-8205
dc.descriptionCopyright © 2012 IOP Publishingen_GB
dc.identifier.eissn2041-8213
dc.identifier.journalAstrophysical Journal Lettersen_GB


Files in this item

This item appears in the following Collection(s)

Show simple item record