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Can scallop-shell stars trap dust in their magnetic fields?

Abstract:

One of the puzzles to have emerged from the Kepler and TESS missions is the existence of unexplained dips in the light curves of a small fraction of rapidly rotating M dwarfs in young open clusters and star-forming regions. We present a theoretical investigation of one possible explanation – that these are caused by dust clouds trapped in the stellar magnetic fields. The depth and duration of the observed dips allow us to estimate directly the linear extent of the dust clouds and their distan...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1093/mnras/stac3302

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Oxford college:
Exeter College
Role:
Author
ORCID:
0000-0001-5842-6985
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Role:
Author
ORCID:
0000-0002-1466-5236
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Role:
Author
ORCID:
0000-0002-8863-7828
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Role:
Author
ORCID:
0000-0002-4996-6901
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Role:
Author
ORCID:
0000-0001-5541-2887
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Name:
European Research Council
Funding agency for:
Donati, J-F
Grant:
#740651 NewWorlds
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Name:
Natural Environment Research Council
Funding agency for:
Sanderson, H
Grant:
NE/S007474/1
More from this funder
Name:
Science and Technology Facilities Council
Funding agency for:
Cameron, AC
Jardine, M
Grant:
ST/R000824/1
More from this funder
Name:
Exeter College, University of Oxford
Funding agency for:
Sanderson, H
More from this funder
Name:
RSE Cormack Vacation Scholarship, Royal Society of Edinburgh
Publisher:
Oxford University Press
Journal:
Monthly Notices of the Royal Astronomical Society More from this journal
Volume:
518
Issue:
3
Pages:
4734-4745
Publication date:
2022-11-12
Acceptance date:
2022-11-08
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Language:
English
Keywords:
Pubs id:
1310780
Local pid:
pubs:1310780
Deposit date:
2022-11-30

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