The K2 Asteroseismic KEYSTONE sample of Dwarf and Subgiant Solar-Like Oscillators: I. Data and Asteroseismic parameters

被引：2

作者：

Lund, Mikkel N. ^{[1
]}

Basu, Sarbani ^{[2
]}

Bieryla, Allyson ^{[3
]}

Casagrande, Luca ^{[4
]}

Huber, Daniel ^{[5
,6
]}

Hekker, Saskia ^{[1
,7
,8
,9
]}

Viani, Lucas ^{[2
]}

Davies, Guy R. ^{[1
,10
]}

Campante, Tiago L. ^{[11
,12
]}

Chaplin, William J. ^{[1
,10
]}

Serenelli, Aldo M. ^{[13
,14
]}

Ong, J. M. Joel ^{[2
,5
]}

Ball, Warrick H. ^{[1
,10
,15
]}

Stokholm, Amalie ^{[10
,16
,17
]}

Bellinger, Earl P. ^{[2
]}

Bazot, Michael ^{[8
]}

Stello, Dennis ^{[6
,18
,19
]}

Latham, David W. ^{[3
]}

White, Timothy R. ^{[1
,6
]}

Sayeed, Maryum ^{[20
]}

Borsen-Koch, Victor Aguirre ^{[21
]}

Chontos, Ashley ^{[5
]}

机构：

[1] Aarhus Univ, Stellar Astrophys Ctr, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark

[2] Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA

[3] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA

[4] Australian Natl Univ, Res Sch Astron & Astrophys, Mt Stromlo Observ, Weston, ACT 2611, Australia

[5] Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA

[6] Univ Sydney, Sydney Inst Astron SIfA, Sch Phys, Sydney, NSW 2006, Australia

[7] Heidelberg Univ, Ctr Astron ZAH LSW, Konigstuhl 12, D-69117 Heidelberg, Germany

[8] Heidelberger Inst Theoret Studien, Schloss Wolfsbrunnenweg 35, D-69118 Heidelberg, Germany

[9] Max Planck Inst Solar Syst Res, Gottingen, Germany

[10] Univ Birmingham, Sch Phys & Astron, Edgbaston B15 2TT, Birmingham, England

[11] Univ Porto, Inst Astrofis & Ciencias Espaco, Rua Estrelas, P-4150762 Porto, Portugal

[12] Univ Porto, Fac Ciencias, Dept Fis & Astron, Rua Campo Alegre S-N, P-4169007 Porto, Portugal

[13] CSIC, ICE, Inst Space Sci, Campus UAB,Carrer Can Magrans S-N, Bellaterra 08193, Spain

[14] Inst Estudis Espacials Catalunya IEEC, C Gran Capita 2-4, Barcelona 08034, Spain

[15] Univ Birmingham, Adv Res Comp, Edgbaston B15 2TT, Birmingham, England

[16] Univ Bologna, Dipartimento Fis & Astron, Via Gobetti 93-2, I-40129 Bologna, Italy

[17] INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Gobetti 93-3, I-40129 Bologna, Italy

[18] Univ New South Wales, Sch Phys, Sydney, NSW 2052, Australia

[19] Australian Res Council, Ctr Excellence All Sky Astrophys 3 Dimens ASTRO 3D, Stromlo, ACT, Australia

[20] Columbia Univ, Dept Astron, 550 West 120th St, New York, NY USA

[21] Univ Copenhagen, Niels Bohr Inst, DARK, Jagtvej 128, DK-2200 Copenhagen, Denmark

来源：

ASTRONOMY & ASTROPHYSICS | 2024年 / 688卷

基金：

欧洲研究理事会; 澳大利亚研究理事会; 新加坡国家研究基金会;

关键词：

asteroseismology; methods: data analysis; catalogs; stars: fundamental parameters; stars: oscillations; planetary systems; TESTING SCALING RELATIONS; RED GIANTS; MAIN-SEQUENCE; RADIAL-VELOCITIES; APOKASC CATALOG; GALACTIC ARCHAEOLOGY; RESOLUTION SPECTRA; HOST STARS; 3D MAPS; KEPLER;

D O I：

10.1051/0004-6361/202450055

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims. The KEYSTONE project aims to enhance our understanding of solar-like oscillators by delivering a catalogue of global asteroseismic parameters (Delta v and v(max)) 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.

引用

页数：22

共 31 条

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ASTROPHYSICAL JOURNAL, 2017, 835 (01):
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