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New hot subdwarf variables from the EC survey

Abstract:

We present new results for hot subdwarf stars from the Edinburgh-Cape (EC) blue object survey. EC 03089–6421, an sdO star recently discovered to be a very rapid pulsator with periods near 31.1 and 34.2 s (29.2 and 32.1 mHz), is shown to have an even faster pulsation near 26.6 s (37.6 mHz) although all pulsations are variable in amplitude and effectively disappear in one of our runs. Five stars are discovered to be of the rapidly-pulsating (sdBVr) type: EC 01441–6605, EC 10834–1301, EC 11275–2...

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

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Publisher copy:
10.1093/mnras/stz609

Authors


Kilkenny, D More by this author
Worters, H More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
485
Issue:
3
Pages:
4330–4342
Publication date:
2019-03-04
Acceptance date:
2019-02-27
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Pubs id:
pubs:977402
URN:
uri:e0c8c43f-8c76-43d2-a9a7-19ff6563867a
UUID:
uuid:e0c8c43f-8c76-43d2-a9a7-19ff6563867a
Local pid:
pubs:977402

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