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The K2 M67 study: A curiously young star in an eclipsing binary in an old open cluster

Abstract:

We present an analysis of a slightly eccentric (e = 0.05), partially eclipsing, long-period (P = 69.73 days) main-sequence binary system (WOCS 12009, Sanders 1247) in the benchmark old open cluster M67. Using Kepler K2 and ground-based photometry, along with a large set of new and reanalyzed spectra, we derived highly precise masses (1.111 ± 0.015 and 0.748 ± 0.005 Mo) and radii (1.071 ± 0.008 ± 0.003 and 0.713 ± 0.019 ± 0.026 Ro, with statistical and systematic error estimates) for the stars...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.3847/1538-3881/aab0ff

Authors


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Australian Research Council More from this funder
Vanderbilt Initiative in Data-Intensive Astrophysics More from this funder
National Aeronautics and Space Administration More from this funder
Alfred P. Sloan Foundation More from this funder
National Science Foundation More from this funder
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Publisher:
Institute of Physics Publisher's website
Journal:
Astronomical Journal Journal website
Volume:
155
Issue:
4
Pages:
152
Publication date:
2018-03-16
Acceptance date:
2018-02-15
DOI:
EISSN:
1538-3881
ISSN:
0004-6256
Pubs id:
pubs:826633
URN:
uri:45a01ba0-efd1-45ed-ab15-b2fe04dcd42d
UUID:
uuid:45a01ba0-efd1-45ed-ab15-b2fe04dcd42d
Local pid:
pubs:826633

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