Scaling and Evolution of Stellar Magnetic Activity

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dc.authoridReiners, Ansgar/0000-0003-1242-5922
dc.contributor.authorIsik, Emre
dc.contributor.authorvan Saders, Jennifer L.
dc.contributor.authorReiners, Ansgar
dc.contributor.authorMetcalfe, Travis S.
dc.date.accessioned2025-02-20T08:42:20Z
dc.date.available2025-02-20T08:42:20Z
dc.date.issued2023
dc.departmentTürk-Alman Üniversitesien_US
dc.description.abstractMagnetic activity is a ubiquitous feature of stars with convective outer layers, with implications from stellar evolution to planetary atmospheres. Investigating the mechanisms responsible for the observed stellar activity signals from days to billions of years is important in deepening our understanding of the spatial configurations and temporal patterns of stellar dynamos, including that of the Sun. In this paper, we focus on three problems and their possible solutions. We start with direct field measurements and show how they probe the dependence of magnetic flux and its density on stellar properties and activity indicators. Next, we review the current state-of-the-art in physics-based models of photospheric activity patterns and their variation from rotational to activity-cycle timescales. We then outline the current state of understanding in the long-term evolution of stellar dynamos, first by using chromospheric and coronal activity diagnostics, then with model-based implications on magnetic braking, which is the key mechanism by which stars spin down and become inactive as they age. We conclude by discussing possible directions to improve the modeling and analysis of stellar magnetic fields.
dc.description.sponsorshipThis review was written following the workshop Solar and Stellar Dynamos: A New Era, hosted and supported by the International Space Science Institute (ISSI) in Bern, Switzerland. The authors wish to express their thanks to ISSI for their financial and l; International Space Science Institute (ISSI) in Bern, Switzerland
dc.description.sponsorshipThis review was written following the workshop Solar and Stellar Dynamos: A New Era, hosted and supported by the International Space Science Institute (ISSI) in Bern, Switzerland. The authors wish to express their thanks to ISSI for their financial and logistical support.
dc.identifier.doi10.1007/s11214-023-01016-3
dc.identifier.issn0038-6308
dc.identifier.issn1572-9672
dc.identifier.issue8en_US
dc.identifier.scopus2-s2.0-85174065292
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s11214-023-01016-3
dc.identifier.urihttps://hdl.handle.net/20.500.12846/1655
dc.identifier.volume219en_US
dc.identifier.wosWOS:001093742000001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofSpace Science Reviews
dc.relation.publicationcategoryDiğer
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250220
dc.subjectCool starsen_US
dc.subjectStellar magnetismen_US
dc.subjectStellar activityen_US
dc.subjectAngular momentum lossen_US
dc.titleScaling and Evolution of Stellar Magnetic Activity
dc.typeReview

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