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Statistics of stellar variability from Kepler : I. Revisiting Quarter 1 with an astrophysically robust systematics correction

Abstract:

We investigate the variability properties of main sequence stars in the first month of Kepler data, using a new astrophysically robust systematics correction, and find that 60% of stars are more variable then the active Sun. We define low and high variability samples, with a cut corresponding to twice the variability level of the active Sun, and compare the properties of the stars belonging to each sample. We show tentative evidence that the more active stars have lower proper motions and may...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Astrophysics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Engineering Science
Role:
Author
Publisher:
EDP Sciences
Journal:
Astronomy and Astrophysics More from this journal
Volume:
539
Pages:
A137-A137
Publication date:
2012-01-01
DOI:
EISSN:
1432-0746
ISSN:
0004-6361
Language:
English
Keywords:
Pubs id:
pubs:319067
UUID:
uuid:fd1b9a1d-8e91-4546-89ec-a68aca280fc2
Local pid:
pubs:319067
Source identifiers:
319067
Deposit date:
2012-12-19

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