The K2 asteroseismic KEYSTONE sample of dwarf and subgiant solar-like oscillators: I. Data and asteroseismic parameters
Aims: The KEYSTONE project aims to enhance our understanding of solar-like oscillators by delivering a catalogue of global asteroseismic parameters (Δv and vmax) for 173 stars, comprising mainly dwarfs and subgiants, observed by the K2 mission in its short-cadence mode during campaigns 6–19. - Metho...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 2024
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| In: |
Astronomy and astrophysics
Year: 2024, Jahrgang: 688, Pages: 1-22 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202450055 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1051/0004-6361/202450055 Verlag, kostenfrei, Volltext: https://www.aanda.org/articles/aa/abs/2024/08/aa50055-24/aa50055-24.html 
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| Verfasserangaben: | Mikkel N. Lund, Sarbani Basu, Allyson Bieryla, Luca Casagrande, Daniel Huber, Saskia Hekker, Lucas Viani, Guy R. Davies, Tiago L. Campante, William J. Chaplin, Aldo M. Serenelli, J.M. Joel Ong, Warrick H. Ball, Amalie Stokholm, Earl P. Bellinger, Michaël Bazot, Dennis Stello, David W. Latham, Timothy R. White, Maryum Sayeed, Víctor Aguirre Børsen-Koch, and Ashley Chontos |
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| 245 | 1 | 4 | |a The K2 asteroseismic KEYSTONE sample of dwarf and subgiant solar-like oscillators |b I. Data and asteroseismic parameters |c Mikkel N. Lund, Sarbani Basu, Allyson Bieryla, Luca Casagrande, Daniel Huber, Saskia Hekker, Lucas Viani, Guy R. Davies, Tiago L. Campante, William J. Chaplin, Aldo M. Serenelli, J.M. Joel Ong, Warrick H. Ball, Amalie Stokholm, Earl P. Bellinger, Michaël Bazot, Dennis Stello, David W. Latham, Timothy R. White, Maryum Sayeed, Víctor Aguirre Børsen-Koch, and Ashley Chontos |
| 264 | 1 | |c August 2024 | |
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| 500 | |a Online veröffentlicht: 30. Juli 2024 | ||
| 500 | |a Gesehen am 13.10.2025 | ||
| 520 | |a Aims: The KEYSTONE project aims to enhance our understanding of solar-like oscillators by delivering a catalogue of global asteroseismic parameters (Δv and vmax) for 173 stars, comprising mainly dwarfs and subgiants, observed by the K2 mission in its short-cadence mode during campaigns 6–19. - Methods: We derive atmospheric parameters and luminosities using spectroscopic data from TRES, astrometric data from Gaia, and the infrared flux method (IRFM) for a comprehensive stellar characterisation. Asteroseismic parameters are robustly extracted using three independent methods, complemented by an iterative refinement of the spectroscopic analyses using seismic log g values to enhance parameter accuracy. - Results: Our analysis identifies new detections of solar-like oscillations in 159 stars, providing an important complement to already published results from previous campaigns. The catalogue provides homogeneously derived atmospheric parameters and luminosities for the majority of the sample. Comparison between spectroscopic Teff and those obtained from the IRFM demonstrates excellent agreement. The iterative approach to spectroscopic analysis significantly enhances the accuracy of the stellar properties derived. | ||
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| 700 | 1 | |a Huber, Daniel |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hekker, Saskia |e VerfasserIn |0 (DE-588)1235175464 |0 (DE-627)1760230065 |4 aut | |
| 700 | 1 | |a Viani, Lucas |e VerfasserIn |4 aut | |
| 700 | 1 | |a Davies, Guy R. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Campante, Tiago L. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Chaplin, William J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Serenelli, Aldo M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Ong, J. M. Joel |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Stokholm, Amalie |e VerfasserIn |4 aut | |
| 700 | 1 | |a Bellinger, Earl P. |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Stello, Dennis |e VerfasserIn |4 aut | |
| 700 | 1 | |a Latham, David W. |e VerfasserIn |4 aut | |
| 700 | 1 | |a White, Timothy R. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Sayeed, Maryum |e VerfasserIn |4 aut | |
| 700 | 1 | |a Børsen-Koch, Víctor Aguirre |e VerfasserIn |4 aut | |
| 700 | 1 | |a Chontos, Ashley |e VerfasserIn |4 aut | |
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