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K2 Campaign 5 observations of pulsating subdwarf B stars: Binaries and super-Nyquist frequencies

dc.contributor.authorReed, Michael D
dc.contributor.authorArmbrecht, EL
dc.contributor.authorTelting, John H
dc.contributor.authorBaran, Andrzej S
dc.contributor.authorØstensen, Roy
dc.contributor.authorBlay, Pere
dc.contributor.authorKvammen, Andreas
dc.contributor.authorKuutma, Teet
dc.contributor.authorPursimo, Tapio
dc.contributor.authorKetzer, Laura
dc.contributor.authorJeffery, C. Simon
dc.date.accessioned2019-02-20T13:52:46Z
dc.date.available2019-02-20T13:52:46Z
dc.date.issued2017-12-05
dc.description.abstractWe report the discovery of three pulsating subdwarf B stars in binary systems observed with the <i>Kepler</i> space telescope during Campaign 5 of K2. EPIC 211696659 (SDSS J083603.98+155216.4) is a g-mode pulsator with a white dwarf companion and a binary period of 3.16 d. EPICs 211823779 (SDSS J082003.35+173914.2) and 211938328 (LB 378) are both p-mode pulsators with main-sequence F companions. The orbit of EPIC 211938328 is long (635 ± 146 d) while we cannot constrain that of EPIC 211823779. The p modes are near the Nyquist frequency and so we investigate ways to discriminate super- from sub-Nyquist frequencies. We search for rotationally induced frequency multiplets and all three stars appear to be slow rotators with EPIC 211696659 subsynchronous to its orbit.en_US
dc.description.sponsorshipThe National Science Foundation The Polish National Science Center The NASA Science Mission directorate The NASA Office of Space Scienceen_US
dc.descriptionThis article has been accepted for publication in <i>Monthly notices of the Royal Astronomical Society</i> ©: 2018 Royal Astronomical Society. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. The version of record Reed, M.D., Armbrecht, E.L., Telting, J.H., Baran, A.S., Østensen, R., Blay, P., ... Jeffery, C.S. (2018). K2 Campaign 5 observations of pulsating subdwarf B stars: Binaries and super-Nyquist frequencies. <i>Monthly notices of the Royal Astronomical Society, 474</i>(4), 5186-5198 is available online at: <a href=https://doi.org/10.1093/mnras/stx3133> https://doi.org/10.1093/mnras/stx3133</a>.en_US
dc.identifier.citationReed, M.D., Armbrecht, E.L., Telting, J.H., Baran, A.S., Østensen, R., Blay, P., ... Jeffery, C.S. (2018). K2 Campaign 5 observations of pulsating subdwarf B stars: Binaries and super-Nyquist frequencies. <i>Monthly notices of the Royal Astronomical Society, 474</i>(4), 5186-5198. https://doi.org/10.1093/mnras/stx3133en_US
dc.identifier.cristinIDFRIDAID 1627392
dc.identifier.doi10.1093/mnras/stx3133
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.urihttps://hdl.handle.net/10037/14731
dc.language.isoengen_US
dc.publisherOxford University Press (OUP)en_US
dc.relation.journalMonthly notices of the Royal Astronomical Society
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430::Space and plasma physics: 437en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430::Rom- og plasmafysikk: 437en_US
dc.titleK2 Campaign 5 observations of pulsating subdwarf B stars: Binaries and super-Nyquist frequenciesen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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