Standing on the shoulders of Dwarfs: the $Kepler$ asteroseismic LEGACY sample I - oscillation mode parameters
| Autor: | Anders Bo Justesen, Jørgen Christensen-Dalsgaard, Luca Casagrande, Daniel Huber, Timothy R. White, Victor Silva Aguirre, Jakob Rørsted Mosumgaard, Hans Kjeldsen, Yveline Lebreton, Rasmus Handberg, Warrick H. Ball, Timothy R. Bedding, Sarbani Basu, Guy R. Davies, Mikkel N. Lund, David W. Latham, Günter Houdek, William J. Chaplin, Kuldeep Verma, H. M. Antia |
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| Přispěvatelé: | School of Physics and Astronomy [Birmingham], University of Birmingham [Birmingham], Stellar Astrophysics Centre [Aarhus] (SAC), Aarhus University [Aarhus], Sydney Institute for Astronomy (SIfA), The University of Sydney, Institut für Astrophysik [Göttingen], Georg-August-University [Göttingen], Max-Planck-Institut für Sonnensystemforschung (MPS), Max-Planck-Gesellschaft, Search for Extraterrestrial Intelligence Institute (SETI), Tata Institute of Fundamental Research [Bombay] (TIFR), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), Harvard-Smithsonian Center for Astrophysics (CfA), Smithsonian Institution-Harvard University [Cambridge], Department of Astronomy [New Haven], Yale University [New Haven], Research School of Astronomy and Astrophysics [Canberra] (RSAA), Australian National University (ANU), Tata Institute for Fundamental Research (TIFR), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Harvard University [Cambridge]-Smithsonian Institution, Georg-August-University = Georg-August-Universität Göttingen, Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research (MPS), Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), Harvard University-Smithsonian Institution |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
oscillations [stars]
fundamental parameters [stars] FOS: Physical sciences Astrophysics asteroseismology 01 natural sciences Asteroseismology Spectral line symbols.namesake 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Line (formation) Physics 010308 nuclear & particles physics Oscillation Mode (statistics) Astronomy and Astrophysics Markov chain Monte Carlo [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] Stars Amplitude Astrophysics - Solar and Stellar Astrophysics 13. Climate action Space and Planetary Science evolution [stars] symbols Astrophysics::Earth and Planetary Astrophysics |
| Zdroj: | The Astrophysical Journal The Astrophysical Journal, American Astronomical Society, 2017, 835 (2), ⟨10.3847/1538-4357/835/2/172⟩ Lund, M N, Silva Aguirre, V, Davies, G R, Chaplin, W J, Christensen-Dalsgaard, J, Houdek, G, White, T, Bedding, T R, Ball, W H, Huber, D, Antia, H M, Lebreton, Y, Latham, D W, Handberg, R, Verma, K, Basu, S, Casagrande, L, Justesen, A B, Kjeldsen, H & Mosumgaard, J R 2017, ' Standing on the Shoulders of Dwarfs: the Kepler Asteroseismic LEGACY Sample. I. Oscillation Mode Parameters ', The Astrophysical Journal, vol. 835, no. 2 . https://doi.org/10.3847/1538-4357/835/2/172 The Astrophysical Journal, American Astronomical Society, 2017, 835 (2), pp.172. ⟨10.3847/1538-4357/835/2/172⟩ The Astrophysical Journal, 2017, 835 (2), pp.172. ⟨10.3847/1538-4357/835/2/172⟩ |
| ISSN: | 0004-637X 1538-4357 |
| Popis: | The advent of space-based missions like $Kepler$ has revolutionized the study of solar-type stars, particularly through the measurement and modeling of their resonant modes of oscillation. Here we analyze a sample of 66 $Kepler$ main-sequence stars showing solar-like oscillations as part of the $Kepler$ seismic LEGACY project. We use $Kepler$ short-cadence data, of which each star has at least 12 months, to create frequency power spectra optimized for asteroseismology. For each star we identify its modes of oscillation and extract parameters such as frequency, amplitude, and line width using a Bayesian Markov chain Monte Carlo `peak-bagging' approach. We report the extracted mode parameters for all 66 stars, as well as derived quantities such as frequency difference ratios, the large and small separations $\Delta\nu$ and $\delta\nu_{02}$; the behavior of line widths with frequency and line widths at $\nu_{\rm max}$ with $T_{\rm eff}$, for which we derive parametrizations; and behavior of mode visibilities. These average properties can be applied in future peak-bagging exercises to better constrain the parameters of the stellar oscillation spectra. The frequencies and frequency ratios can tightly constrain the fundamental parameters of these solar-type stars, and mode line widths and amplitudes can test models of mode damping and excitation. Comment: 29 pages, 27 Figures, 8 Tables, Accepted for publication in Apj |
| Databáze: | OpenAIRE |
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