Faculae cancel out on the surfaces of active suns

Basit Öğe Kaydı
dc.authorid0000-0001-6163-0653
dc.contributor.authorNemec, N. E.
dc.contributor.authorShapiro, A. I.
dc.contributor.authorIşık, Emre
dc.contributor.authorSowmya, K.
dc.contributor.authorSolanki, S. K.
dc.contributor.authorKrivova, N. A.
dc.contributor.authorCameron, R. H.
dc.contributor.authorGizon, L.
dc.date.accessioned2022-11-14T05:22:54Z
dc.date.available2022-11-14T05:22:54Z
dc.date.issued2022
dc.departmentTAÜ, Mühendislik Fakültesi, Bilgisayar Mühendisliği Bölümüen_US
dc.description.abstractSurfaces of the Sun and other cool stars are filled with magnetic fields, which are either seen as dark compact spots or more diffuse bright structures like faculae. Both hamper detection and characterization of exoplanets, affecting stellar brightness and spectra, as well as transmission spectra. However, the expected facular and spot signals in stellar data are quite different, for instance, they have distinct temporal and spectral profiles. Consequently, corrections of stellar data for magnetic activity can greatly benefit from the insight on whether the stellar signal is dominated by spots or faculae. Here, we utilize a surface flux transport model to show that more effective cancellation of diffuse magnetic flux associated with faculae leads to spot area coverages increasing faster with stellar magnetic activity than that by faculae. Our calculations explain the observed dependence between solar spot and facular area coverages and allow its extension to stars that are more active than the Sun. This extension enables anticipating the properties of stellar signal and its more reliable mitigation, leading to a more accurate characterization of exoplanets and their atmospheres.
dc.identifier.citationNèmec, N. E., Shapiro, A. I., Işık, E., Sowmya, K., Solanki, S. K., Krivova, N. A., ... & Gizon, L. (2022). Faculae cancel out on the surfaces of active Suns. The Astrophysical Journal Letters, 934(2), L23.
dc.identifier.doi10.3847/2041-8213/ac8155
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85135762815
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://hdl.handle.net/20.500.12846/682
dc.identifier.volume934en_US
dc.identifier.wosWOS:000832431200001
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.subjectFlux Transporten_US
dc.subjectIrradiance Variationsen_US
dc.subjectSolaren_US
dc.subjectVariabilityen_US
dc.subjectFlussmittel Transporten_US
dc.subjectBestrahlungsstärke Schwankungenen_US
dc.subjectSonneen_US
dc.subjectVariabilitäten_US
dc.subjectAkı Taşımacılığıen_US
dc.subjectIşınım Değişimlerien_US
dc.subjectGüneş Enerjisien_US
dc.titleFaculae cancel out on the surfaces of active suns
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim
İsim:
Nèmec_2022_ApJL_934_L23.pdf
Boyut:
1.02 MB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam Metin / Full Text
İndir
Lisans paketi
Listeleniyor 1 - 1 / 1
[ X ]
İsim:
license.txt
Boyut:
1.44 KB
Biçim:
Item-specific license agreed upon to submission
Açıklama:
İndir

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Bilgisayar Mühendisliği Bölümü Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu