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The rotation–activity relation of M dwarfs : from K2 to TESS and PLATO

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Raetz_2020_Rotation_activity_relation_AN_AAM.pdf (2.348Mb)
Date
27/08/2020
Author
Raetz, Stefanie
Stelzer, Beate
Scholz, Alexander
Keywords
Stars: late-type
Stars: activity
Stars: rotation
Stars: flare
QB Astronomy
DAS
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Abstract
Studies of the rotation–activity relation of late‐type stars are essential to enhance our understanding of stellar dynamos and angular momentum evolution. We study the rotation–activity relation with K2 for M dwarfs, where it is especially poorly understood. We analyzed the light curves of all bright and nearby M dwarfs form the Superblink proper motion catalog that were in the K2 field of view. Using a sample of 430 M dwarfs observed in campaigns C0–C19 in long‐cadence mode, we determined the rotation period and a wealth of activity diagnostics. Our study of the rotation–activity relation based on photometric activity indicators confirmed the previously published abrupt change of the activity level at a rotation period of ∼10 days. Our sample, which is more than three times larger, increases the statistical significance of this finding.
Citation
Raetz , S , Stelzer , B & Scholz , A 2020 , ' The rotation–activity relation of M dwarfs : from K2 to TESS and PLATO ' , Astronomische Nachrichten , vol. 341 , no. 5 , pp. 519-556 . https://doi.org/10.1002/asna.202013727
Publication
Astronomische Nachrichten
Status
Peer reviewed
DOI
https://doi.org/10.1002/asna.202013727
ISSN
0004-6337
Type
Journal article
Rights
Copyright © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1002/asna.202013727.
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  • University of St Andrews Research
URL
https://arxiv.org/abs/2005.08688
URI
http://hdl.handle.net/10023/23419

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