%0 Generic %1 citeulike:14566738 %A Garraffo, C. %A Drake, J. J. %A Dotter, A. %A Choi, J. %A Burke, D. J. %A Moschou, S. P. %A Alvarado-Gomez, J. D. %A Kashyap, V. L. %A Cohen, O. %D 2018 %K imported %T The Revolution Revolution: magnetic morphology driven spin-down %U http://arxiv.org/abs/1804.01986 %X Observations of young open clusters show a bimodal distribution of rotation periods that has been difficult to explain with existing stellar spin-down models. Detailed MHD stellar wind simulations have demonstrated that surface magnetic field morphology has a strong influence on wind-driven angular momentum loss. Observations suggest that faster rotating stars store a larger fraction of their magnetic flux in higher-order multipolar components of the magnetic field. In this work, we present a new model for stellar spin-down that, for the first time, accounts for the stellar surface magnetic field configuration. We show how a magnetic complexity that evolves from complex toward simple configurations as a star spins down can explain the salient features of stellar rotation evolution, including the bimodal distribution of both slow and fast rotators seen in young open clusters.

@misc{citeulike:14566738, abstract = {{Observations of young open clusters show a bimodal distribution of rotation periods that has been difficult to explain with existing stellar spin-down models. Detailed MHD stellar wind simulations have demonstrated that surface magnetic field morphology has a strong influence on wind-driven angular momentum loss. Observations suggest that faster rotating stars store a larger fraction of their magnetic flux in higher-order multipolar components of the magnetic field. In this work, we present a new model for stellar spin-down that, for the first time, accounts for the stellar surface magnetic field configuration. We show how a magnetic complexity that evolves from complex toward simple configurations as a star spins down can explain the salient features of stellar rotation evolution, including the bimodal distribution of both slow and fast rotators seen in young open clusters.}}, added-at = {2019-03-25T08:20:55.000+0100}, archiveprefix = {arXiv}, author = {Garraffo, C. and Drake, J. J. and Dotter, A. and Choi, J. and Burke, D. J. and Moschou, S. P. and Alvarado-Gomez, J. D. and Kashyap, V. L. and Cohen, O.}, biburl = {https://www.bibsonomy.org/bibtex/283cb96902a9d594dee5f6a1af864fa6b/ericblackman}, citeulike-article-id = {14566738}, citeulike-linkout-0 = {http://arxiv.org/abs/1804.01986}, citeulike-linkout-1 = {http://arxiv.org/pdf/1804.01986}, day = 5, eprint = {1804.01986}, interhash = {4572589db0983214b5c99f779e970e2b}, intrahash = {83cb96902a9d594dee5f6a1af864fa6b}, keywords = {imported}, month = apr, posted-at = {2018-04-11 04:08:18}, priority = {2}, timestamp = {2019-03-25T08:20:55.000+0100}, title = {{The Revolution Revolution: magnetic morphology driven spin-down}}, url = {http://arxiv.org/abs/1804.01986}, year = 2018 }