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Characterising stellar micro-variability for planetary transit searches

Abstract:

A method for simulating light curves containing stellar micro-variability for a range of spectral types and ages is presented. It is based on parameter-by-parameter scaling of a multi-component fit to the solar irradiance power spectrum (based on VIRGO/PMO6 data), and scaling laws derived from ground based observations of various stellar samples. A correlation is observed in the Sun between the amplitude of the power spectrum on long (weeks) timescales and the BBSO Ca II K-line index of chrom...

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Publication status:
Published

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Publisher copy:
10.1051/0004-6361:20034039

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Gilmore, G More by this author
Journal:
ASTRONOMY and ASTROPHYSICS
Volume:
414
Issue:
3
Pages:
1139-1152
Publication date:
2004-02-05
DOI:
ISSN:
0004-6361
URN:
uuid:8dd9332c-eaef-4278-8a83-912f37bc401d
Source identifiers:
156941
Local pid:
pubs:156941

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