Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/25926
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Guzik, J. A. | en_US |
dc.contributor.author | Houdek, G. | en_US |
dc.contributor.author | Chaplin, W. J. | en_US |
dc.contributor.author | Smalley, B. | en_US |
dc.contributor.author | Kurtz, D. W. | en_US |
dc.contributor.author | Gilliland, R. L. | en_US |
dc.contributor.author | Mullally, F. | en_US |
dc.contributor.author | Rowe, J. F. | en_US |
dc.contributor.author | Bryson, S. T. | en_US |
dc.contributor.author | Still, M. D. | en_US |
dc.contributor.author | Antoci, V. | en_US |
dc.contributor.author | Appourchaux, T. | en_US |
dc.contributor.author | Basu, S. | en_US |
dc.contributor.author | Bedding, T. R. | en_US |
dc.contributor.author | Benomar, O. | en_US |
dc.contributor.author | Garcia, R. A. | en_US |
dc.contributor.author | Huber, D. | en_US |
dc.contributor.author | Kjeldsen, H. | en_US |
dc.contributor.author | Latham, D. W. | en_US |
dc.contributor.author | Metcalfe, T. S. | en_US |
dc.contributor.author | Pápics, P. I. | en_US |
dc.contributor.author | White, T. R. | en_US |
dc.contributor.author | Aerts, C. | en_US |
dc.contributor.author | Ballot, J. | en_US |
dc.contributor.author | Boyajian, T. S. | en_US |
dc.contributor.author | Briquet, M. | en_US |
dc.contributor.author | Bruntt, H. | en_US |
dc.contributor.author | Buchhave, L. A. | en_US |
dc.contributor.author | Campante, T. L. | en_US |
dc.contributor.author | CATANZARO, Giovanni | en_US |
dc.contributor.author | Christensen-Dalsgaard, J. | en_US |
dc.contributor.author | Davies, G. R. | en_US |
dc.contributor.author | Doğan, G. | en_US |
dc.contributor.author | Dragomir, D. | en_US |
dc.contributor.author | Doyle, A. P. | en_US |
dc.contributor.author | Elsworth, Y. | en_US |
dc.contributor.author | FRASCA, Antonio | en_US |
dc.contributor.author | Gaulme, P. | en_US |
dc.contributor.author | Gruberbauer, M. | en_US |
dc.contributor.author | Handberg, R. | en_US |
dc.contributor.author | Hekker, S. | en_US |
dc.contributor.author | Karoff, C. | en_US |
dc.contributor.author | Lehmann, H. | en_US |
dc.contributor.author | Mathias, P. | en_US |
dc.contributor.author | Mathur, S. | en_US |
dc.contributor.author | Miglio, A. | en_US |
dc.contributor.author | Molenda-Żakowicz, J. | en_US |
dc.contributor.author | Mosser, B. | en_US |
dc.contributor.author | Murphy, S. J. | en_US |
dc.contributor.author | Régulo, C. | en_US |
dc.contributor.author | RIPEPI, Vincenzo | en_US |
dc.contributor.author | Salabert, D. | en_US |
dc.contributor.author | Sousa, S. G. | en_US |
dc.contributor.author | Stello, D. | en_US |
dc.contributor.author | Uytterhoeven, K. | en_US |
dc.date.accessioned | 2020-06-05T08:29:25Z | - |
dc.date.available | 2020-06-05T08:29:25Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25926 | - |
dc.description.abstract | θ Cygni is an F3 spectral type magnitude V = 4.48 main-sequence star that was the brightest star observed by the original Kepler spacecraft mission. Short-cadence (58.8 s) photometric data using a custom aperture were first obtained during Quarter 6 (2010 June-September) and subsequently in Quarters 8 and 12-17. We present analyses of solar-like oscillations based on Q6 and Q8 data, identifying angular degree l = 0, 1, and 2 modes with frequencies of 1000-2700 μHz, a large frequency separation of 83.9 ± 0.4 μHz, and maximum oscillation amplitude at frequency ν <SUB>max</SUB> = 1829 ± 54 μHz. We also present analyses of new ground-based spectroscopic observations, which, combined with interferometric angular diameter measurements, give T <SUB>eff</SUB> = 6697 ± 78 K, radius 1.49 ± 0.03 R <SUB>☉</SUB>, [Fe/H] = -0.02 ± 0.06 dex, and log g = 4.23 ± 0.03. We calculate stellar models matching these constraints using the Yale Rotating Evolution Code and the Asteroseismic Modeling Portal. The best-fit models have masses of 1.35-1.39 M <SUB>☉</SUB> and ages of 1.0-1.6 Gyr. θ Cyg’s T <SUB>eff</SUB> and log g place it cooler than the red edge of the γ Doradus instability region established from pre-Kepler ground-based observations, but just at the red edge derived from pulsation modeling. The pulsation models show γ Dor gravity modes driven by the convective blocking mechanism, with frequencies of 1-3 cycles per day (11 to 33 μHz). However, gravity modes were not seen in Kepler data; one signal at 1.776 cycles per day (20.56 μHz) may be attributable to a faint, possibly background, binary. | en_US |
dc.language.iso | eng | en_US |
dc.title | Detection of Solar-like Oscillations, Observational Constraints, and Stellar Models for θ Cyg, the Brightest Star Observed By the Kepler Mission | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/831/1/17 | en_US |
dc.identifier.scopus | 2-s2.0-84994372812 | en_US |
dc.identifier.isi | 000386794900011 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/831/1/17 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 831 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 17 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...831...17G | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.orcid | 0000-0003-4337-8612 | - |
crisitem.author.orcid | 0000-0002-0474-0896 | - |
crisitem.author.orcid | 0000-0003-1801-426X | - |
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