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First Results on RR Lyrae Stars with the TESS Space Telescope: Untangling the Connections between Mode Content, Colors, and Distances

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cam.issuedOnline2021-12-22
dc.contributor.authorMolnár, L
dc.contributor.authorBódi, A
dc.contributor.authorPál, A
dc.contributor.authorBhardwaj, A
dc.contributor.authorHambsch, FJ
dc.contributor.authorBenkő, JM
dc.contributor.authorDerekas, A
dc.contributor.authorEbadi, M
dc.contributor.authorJoyce, M
dc.contributor.authorHasanzadeh, A
dc.contributor.authorKolenberg, K
dc.contributor.authorLund, MB
dc.contributor.authorNemec, JM
dc.contributor.authorNetzel, H
dc.contributor.authorNgeow, CC
dc.contributor.authorPepper, J
dc.contributor.authorPlachy, E
dc.contributor.authorPrudil, Z
dc.contributor.authorSiverd, RJ
dc.contributor.authorSkarka, M
dc.contributor.authorSmolec, R
dc.contributor.authorSódor, A
dc.contributor.authorSylla, S
dc.contributor.authorSzabó, P
dc.contributor.authorSzabó, R
dc.contributor.authorKjeldsen, H
dc.contributor.authorChristensen-Dalsgaard, J
dc.contributor.authorRicker, GR
dc.contributor.orcidMolnár, L [0000-0002-8159-1599]
dc.contributor.orcidBódi, A [0000-0002-8585-4544]
dc.contributor.orcidPál, A [0000-0001-5449-2467]
dc.contributor.orcidBhardwaj, A [0000-0001-6147-3360]
dc.contributor.orcidBenkő, JM [0000-0003-3851-6603]
dc.contributor.orcidDerekas, A [0000-0002-6526-9444]
dc.contributor.orcidJoyce, M [0000-0002-8717-127X]
dc.contributor.orcidHasanzadeh, A [0000-0002-7286-1438]
dc.contributor.orcidKolenberg, K [0000-0001-5181-5072]
dc.contributor.orcidLund, MB [0000-0003-2527-1598]
dc.contributor.orcidNemec, JM [0000-0003-1281-5525]
dc.contributor.orcidNetzel, H [0000-0001-5608-0028]
dc.contributor.orcidNgeow, CC [0000-0001-8771-7554]
dc.contributor.orcidPepper, J [0000-0002-3827-8417]
dc.contributor.orcidPlachy, E [0000-0002-5481-3352]
dc.contributor.orcidPrudil, Z [0000-0001-5497-5805]
dc.contributor.orcidSiverd, RJ [0000-0001-5016-3359]
dc.contributor.orcidSkarka, M [0000-0002-7602-0046]
dc.contributor.orcidSmolec, R [0000-0001-7217-4884]
dc.contributor.orcidSódor, A [0000-0001-7806-2883]
dc.contributor.orcidSzabó, P [0000-0002-5781-1926]
dc.contributor.orcidSzabó, R [0000-0002-3258-1909]
dc.contributor.orcidKjeldsen, H [0000-0002-9037-0018]
dc.contributor.orcidChristensen-Dalsgaard, J [0000-0001-5137-0966]
dc.contributor.orcidRicker, GR [0000-0003-2058-6662]
dc.date.accessioned2022-01-07T16:48:33Z
dc.date.available2022-01-07T16:48:33Z
dc.date.issued2022-01-01
dc.date.submitted2021-06-19
dc.date.updated2022-01-07T16:48:32Z
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>The Transiting Exoplanet Survey Satellite (TESS) space telescope is collecting continuous, high-precision optical photometry of stars throughout the sky, including thousands of RR Lyrae stars. In this paper, we present results for an initial sample of 118 nearby RR Lyrae stars observed in TESS Sectors 1 and 2. We use differential image photometry to generate light curves and analyze their mode content and modulation properties. We combine accurate light-curve parameters from TESS with parallax and color information from the Gaia mission to create a comprehensive classification scheme. We build a clean sample, preserving RR Lyrae stars with unusual light-curve shapes, while separating other types of pulsating stars. We find that a large fraction of RR Lyrae stars exhibit various low-amplitude modes, but the distribution of those modes is markedly different from those of the bulge stars. This suggests that differences in physical parameters have an observable effect on the excitation of extra modes, potentially offering a way to uncover the origins of these signals. However, mode identification is hindered by uncertainties when identifying the true pulsation frequencies of the extra modes. We compare mode amplitude ratios in classical double-mode stars to stars with extra modes at low amplitudes and find that they separate into two distinct groups. Finally, we find a high percentage of modulated stars among the fundamental mode pulsators, but also find that at least 28% of them do not exhibit modulation, confirming that a significant fraction of stars lack the Blazhko effect.</jats:p>
dc.identifier.doi10.17863/CAM.79798
dc.identifier.eissn1538-4365
dc.identifier.issn0067-0049
dc.identifier.otherapjsac2ee2
dc.identifier.otherac2ee2
dc.identifier.otheraas32901
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332352
dc.languageen
dc.language.isoeng
dc.publisherAmerican Astronomical Society
dc.publisher.urlhttp://dx.doi.org/10.3847/1538-4365/ac2ee2
dc.subject5109 Space Sciences
dc.subject5101 Astronomical Sciences
dc.subject51 Physical Sciences
dc.titleFirst Results on RR Lyrae Stars with the TESS Space Telescope: Untangling the Connections between Mode Content, Colors, and Distances
dc.typeArticle
dcterms.dateAccepted2021-09-14
prism.issueIdentifier1
prism.publicationNameAstrophysical Journal, Supplement Series
prism.volume258
pubs.funder-project-idMagyar Tudományos Akadémia (MTA) (LP2012-31)
pubs.funder-project-idMagyar Tudományos Akadémia (MTA) (LP2014-17)
pubs.funder-project-idMagyar Tudományos Akadémia (MTA) (LP2018-7)
pubs.funder-project-idOTKA ∣ Nemzeti Kutatási, Fejlesztési és Innovaciós Alap (NKFIA) (NN-129075)
pubs.funder-project-idMagyar Tudományos Akadémia (MTA) (PPD-2018-008)
pubs.funder-project-idEuropean Cooperation in Science and Technology (COST) (CA18104)
pubs.funder-project-idNational Aeronautics and Space Administration (NASA) (NNG14FC03C)
pubs.funder-project-idAustralian Research Council (DP150100250)
pubs.funder-project-idMinistry of Science and Technology, Taiwan (MOST) (109-2112-M-008-014-MY3)
pubs.funder-project-idDeutsche Forschungsgemeinschaft (DFG) (138713538 - SFB 881)
pubs.funder-project-idNarodowym Centrum Nauki (NCN) (2018/30/E/ST9/00598)
pubs.funder-project-idProject Postdoc@MUNI (CZ.02.2.69/0.0/0.0/16 027/0008360)
pubs.funder-project-idMSMT Inter Transfer program (LTT20015)
pubs.funder-project-idDanmarks Grundforskningsfond (DNRF) (DNRF106)
pubs.funder-project-idLietuvos Mokslo Taryba (Research Council of Lithuania) (09.3.3-LMT-K-712- 01-0103)
pubs.funder-project-idOTKA ∣ Nemzeti Kutatási, Fejlesztési és Innovaciós Alap (NKFIA) (KKP-137523)
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.versionVoR
rioxxterms.versionofrecord10.3847/1538-4365/ac2ee2

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