Where have all the solar-like stars gone? Rotation period detectability at various inclinations and metallicities

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dc.authorid0000-0001-6163-0653
dc.contributor.authorReinhold, Timo
dc.contributor.authorShapiro, Alexander I.
dc.contributor.authorWitzke, Veronika
dc.contributor.authorNèmec, Nina E.
dc.contributor.authorIşık, Emre
dc.contributor.authorSolanki, Sami K.
dc.date.accessioned2021-03-08T07:50:49Z
dc.date.available2021-03-08T07:50:49Z
dc.date.issued2021
dc.departmentTAÜ, Mühendislik Fakültesi, Bilgisayar Mühendisliği Bölümüen_US
dc.description.abstractThe plethora of photometric data collected by the Kepler space telescope has pro moted the detection of tens of thousands of stellar rotation periods. However, these periods are not found to an equal extent among different spectral types. Interest ingly, early G-type stars with near-solar rotation periods are strongly underrepre sented among those stars with known rotation periods. In this study we investigate whether the small number of such stars can be explained by difficulties in the period determination from photometric time series. For that purpose, we generate model light curves of early G-type stars with solar rotation periods for different inclination angles, metallicities and (magnitude-dependent) noise levels. We find that the de tectability is determined by the predominant type of activity (i.e. spot or faculae domination) on the surface, which defines the degree of irregularity of the light curve, and further depends on the level of photometric noise. These two effects significantly complicate the period detection and explain the lack of solar-like stars with known near-solar rotation periods. We conclude that the rotation periods of the majority of solar-like stars with near-solar rotation periods remain undetected to date. Finally, we promote the use of new techniques to recover more periods of near-solar rotators.
dc.identifier.citationReinhold, T., Shapiro, A. I., Witzke, V., Nèmec, N. E., Işık, E., & Solanki, S. K. (2021). Where have all the solar-like stars gone? Rotation period detectability at various inclinations and metallicities. The Astrophysical Journal Letters, 908(2), L21.
dc.identifier.doi10.3847/2041-8213/abde46
dc.identifier.issn1538-4357
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85101368726
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://hdl.handle.net/20.500.12846/526
dc.identifier.volume908en_US
dc.identifier.wosWOS:000619564200001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorIşık, Emre
dc.language.isoen
dc.publisherIOP Publishing
dc.relation.ispartofAstrophysical Journal Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectG-tipi Yıldızlaren_US
dc.subjectG-type Starsen_US
dc.subjectG-Sterneen_US
dc.titleWhere have all the solar-like stars gone? Rotation period detectability at various inclinations and metallicities
dc.typeArticle

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