Understanding Active Region Origins and Emergence on the Sun and Other Cool Stars

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dc.contributor.authorWeber, Maria A.
dc.contributor.authorSchunker, Hannah
dc.contributor.authorJouve, Laurene
dc.contributor.authorIsik, Emre
dc.date.accessioned2025-02-20T08:42:20Z
dc.date.available2025-02-20T08:42:20Z
dc.date.issued2023
dc.departmentTürk-Alman Üniversitesien_US
dc.description.abstractThe emergence of active regions on the Sun is an integral feature of the solar dynamo mechanism. However, details about the generation of active-region-scale magnetism and the journey of this magnetic flux from the interior to the photosphere are still in question. Shifting paradigms are now developing for the source depth of the Sun's large-scale magnetism, the organization of this magnetism into fibril flux tubes, and the role of convection in shaping active-region observables. Here we review the landscape of flux emergence theories and simulations, highlight the role flux emergence plays in the global dynamo process, and make connections between flux emergence on the Sun and other cool stars. As longer-term and higher fidelity observations of both solar active regions and their associated flows are amassed, it is now possible to place new constraints on models of emerging flux. We discuss the outcomes of statistical studies which provide observational evidence that flux emergence may be a more passive process (at least in the upper convection zone); dominated to a greater extent by the influence of convection and to a lesser extent by buoyancy and the Coriolis force acting on rising magnetic flux tubes than previously thought. We also discuss how the relationship between stellar rotation, fractional convection zone depth, and magnetic activity on other stars can help us better understand the flux emergence processes. Looking forward, we identify open questions regarding magnetic flux emergence that we anticipate can be addressed in the next decade with further observations and simulations.
dc.description.sponsorshipHS is the recipient of an Australian Research Council Future Fellowship Award (project number FT220100330) funded by the Australian Government and her contribution is partially funded by this grant. LJ acknowledges funding by the Institut Universitaire de [FT220100330]; Australian Research Council Future Fellowship Award; Australian Government - Institut Universitaire de France; Australian Research Council [FT220100330] Funding Source: Australian Research Council
dc.description.sponsorshipHS is the recipient of an Australian Research Council Future Fellowship Award (project number FT220100330) funded by the Australian Government and her contribution is partially funded by this grant. LJ acknowledges funding by the Institut Universitaire de France. The authors thank the reviewers for their comments, which improved the clarity of this manuscript.
dc.identifier.doi10.1007/s11214-023-01006-5
dc.identifier.issn0038-6308
dc.identifier.issn1572-9672
dc.identifier.issue8en_US
dc.identifier.scopus2-s2.0-85174400161
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s11214-023-01006-5
dc.identifier.urihttps://hdl.handle.net/20.500.12846/1656
dc.identifier.volume219en_US
dc.identifier.wosWOS:001094262800001
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.subjectSunen_US
dc.subjectSolaren_US
dc.subjectSunspoten_US
dc.subjectMagnetic fielden_US
dc.subjectFlux emergenceen_US
dc.titleUnderstanding Active Region Origins and Emergence on the Sun and Other Cool Stars
dc.typeReview

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