TFAW survey II: six newly validated planets and 13 planet candidates from K2

Searching for Earth-sized planets in data from Kepler's extended mission (K2) is a niche that still remains to be fully exploited. The TFAW survey is an ongoing project that aims to re-analyse all light curves in K2 C1-C8 and C12-C18 campaigns with a wavelet-based detrending and denoising metho...

Descripción completa

Detalles Bibliográficos
Autores: Ser Badia, Daniel del, Fors Aldrich, Octavi, Alcázar i Julià, Marc del, Dyachenko, Vladimir, Horch, Elliott P., Tokovinin, Andrei, Ziegler, Carl, van Belle, Gerard T., Clark, Catherine A., Hartman, Zachary D.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/206389
Acceso en línea:https://hdl.handle.net/2445/206389
Access Level:acceso abierto
Palabra clave:Planetes
Satèl·lits
Fotometria
Planets
Satellites
Photometry
id ES_6ca6bbbd73f72ec7f2bf83caa8844009
oai_identifier_str oai:recercat.cat:2445/206389
network_acronym_str ES
network_name_str España
repository_id_str
spelling TFAW survey II: six newly validated planets and 13 planet candidates from K2Ser Badia, Daniel delFors Aldrich, OctaviAlcázar i Julià, Marc delDyachenko, VladimirHorch, Elliott P.Tokovinin, AndreiZiegler, Carlvan Belle, Gerard T.Clark, Catherine A.Hartman, Zachary D.PlanetesSatèl·litsFotometriaPlanetsSatellitesPhotometrySearching for Earth-sized planets in data from Kepler's extended mission (K2) is a niche that still remains to be fully exploited. The TFAW survey is an ongoing project that aims to re-analyse all light curves in K2 C1-C8 and C12-C18 campaigns with a wavelet-based detrending and denoising method, and the period search algorithm TLS to search for new transit candidates not detected in previous works. We have analysed a first subset of 24 candidate planetary systems around relatively faint host stars (10.9 < Kp < 15.4) to allow for follow-up speckle imaging observations. Using vespa and TRICERATOPS, we statistically validate six candidates orbiting four unique host stars by obtaining false-positive probabilities smaller than 1 per cent with both methods. We also present 13 vetted planet candidates that might benefit from other, more precise follow-up observations. All of these planets are sub-Neptune-sized with two validated planets and three candidates with sub-Earth sizes, and have orbital periods between 0.81 and 23.98 d. Some interesting systems include two ultra-short-period planets, three multiplanetary systems, three sub-Neptunes that appear to be within the small planet Radius Gap, and two validated and one candidate sub-Earths (EPIC 210706310.01, K2-411 b, and K2-413 b) orbiting metal-poor stars.Royal Astronomical Society2024202420222024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion22 p.application/pdfhttps://hdl.handle.net/2445/206389Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1093/mnras/stac3087Monthly Notices of the Royal Astronomical Society, 2022, vol. 518, num.1, p. 669-690https://doi.org/10.1093/mnras/stac3087(c) del Ser, Daniel et al., 2022info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2063892026-05-29T05:05:01Z
dc.title.none.fl_str_mv TFAW survey II: six newly validated planets and 13 planet candidates from K2
title TFAW survey II: six newly validated planets and 13 planet candidates from K2
spellingShingle TFAW survey II: six newly validated planets and 13 planet candidates from K2
Ser Badia, Daniel del
Planetes
Satèl·lits
Fotometria
Planets
Satellites
Photometry
title_short TFAW survey II: six newly validated planets and 13 planet candidates from K2
title_full TFAW survey II: six newly validated planets and 13 planet candidates from K2
title_fullStr TFAW survey II: six newly validated planets and 13 planet candidates from K2
title_full_unstemmed TFAW survey II: six newly validated planets and 13 planet candidates from K2
title_sort TFAW survey II: six newly validated planets and 13 planet candidates from K2
dc.creator.none.fl_str_mv Ser Badia, Daniel del
Fors Aldrich, Octavi
Alcázar i Julià, Marc del
Dyachenko, Vladimir
Horch, Elliott P.
Tokovinin, Andrei
Ziegler, Carl
van Belle, Gerard T.
Clark, Catherine A.
Hartman, Zachary D.
author Ser Badia, Daniel del
author_facet Ser Badia, Daniel del
Fors Aldrich, Octavi
Alcázar i Julià, Marc del
Dyachenko, Vladimir
Horch, Elliott P.
Tokovinin, Andrei
Ziegler, Carl
van Belle, Gerard T.
Clark, Catherine A.
Hartman, Zachary D.
author_role author
author2 Fors Aldrich, Octavi
Alcázar i Julià, Marc del
Dyachenko, Vladimir
Horch, Elliott P.
Tokovinin, Andrei
Ziegler, Carl
van Belle, Gerard T.
Clark, Catherine A.
Hartman, Zachary D.
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Planetes
Satèl·lits
Fotometria
Planets
Satellites
Photometry
topic Planetes
Satèl·lits
Fotometria
Planets
Satellites
Photometry
description Searching for Earth-sized planets in data from Kepler's extended mission (K2) is a niche that still remains to be fully exploited. The TFAW survey is an ongoing project that aims to re-analyse all light curves in K2 C1-C8 and C12-C18 campaigns with a wavelet-based detrending and denoising method, and the period search algorithm TLS to search for new transit candidates not detected in previous works. We have analysed a first subset of 24 candidate planetary systems around relatively faint host stars (10.9 < Kp < 15.4) to allow for follow-up speckle imaging observations. Using vespa and TRICERATOPS, we statistically validate six candidates orbiting four unique host stars by obtaining false-positive probabilities smaller than 1 per cent with both methods. We also present 13 vetted planet candidates that might benefit from other, more precise follow-up observations. All of these planets are sub-Neptune-sized with two validated planets and three candidates with sub-Earth sizes, and have orbital periods between 0.81 and 23.98 d. Some interesting systems include two ultra-short-period planets, three multiplanetary systems, three sub-Neptunes that appear to be within the small planet Radius Gap, and two validated and one candidate sub-Earths (EPIC 210706310.01, K2-411 b, and K2-413 b) orbiting metal-poor stars.
publishDate 2022
dc.date.none.fl_str_mv 2022
2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/206389
url https://hdl.handle.net/2445/206389
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1093/mnras/stac3087
Monthly Notices of the Royal Astronomical Society, 2022, vol. 518, num.1, p. 669-690
https://doi.org/10.1093/mnras/stac3087
dc.rights.none.fl_str_mv (c) del Ser, Daniel et al., 2022
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) del Ser, Daniel et al., 2022
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 22 p.
application/pdf
dc.publisher.none.fl_str_mv Royal Astronomical Society
publisher.none.fl_str_mv Royal Astronomical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410282968711168
score 15,81155

Similares en LA Referencia