Asteroseismic properties of solar-type stars observed with the NASA K2 mission: results from Campaigns 1-3 and prospects for future observations

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Asteroseismic properties of solar-type stars observed with the NASA K2 mission : results from Campaigns 1-3 and prospects for future observations. / Lund, Mikkel N.; Chaplin, William J.; Casagrande, Luca; Aguirre, Víctor Silva; Basu, Sarbani; Bieryla, Allyson; Christensen-Dalsgaard, Jørgen; Latham, David W.; White, Timothy R.; Davies, Guy R.; Huber, Daniel; Buchhave, Lars A.; Handberg, Rasmus.

In: Publications of the Astronomical Society of the Pacific, Vol. 128, No. 970, 124204, 08.11.2016.

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Lund, Mikkel N. ; Chaplin, William J. ; Casagrande, Luca ; Aguirre, Víctor Silva ; Basu, Sarbani ; Bieryla, Allyson ; Christensen-Dalsgaard, Jørgen ; Latham, David W. ; White, Timothy R. ; Davies, Guy R. ; Huber, Daniel ; Buchhave, Lars A. ; Handberg, Rasmus. / Asteroseismic properties of solar-type stars observed with the NASA K2 mission : results from Campaigns 1-3 and prospects for future observations. In: Publications of the Astronomical Society of the Pacific. 2016 ; Vol. 128, No. 970.

Bibtex

@article{f618d81f8a834471a4265fc740fab8ee,
title = "Asteroseismic properties of solar-type stars observed with the NASA K2 mission: results from Campaigns 1-3 and prospects for future observations",
abstract = "We present an asteroseismic analysis of 33 solar-type stars observed in short cadence during Campaigns (C) 1-3 of the NASA K2 mission. We were able to extract both average seismic parameters and individual mode frequencies for stars with dominant frequencies up to ~3300{\mu}Hz, and we find that data for some targets are good enough to allow for a measurement of the rotational splitting. Modelling of the extracted parameters is performed by using grid-based methods using average parameters and individual frequencies together with spectroscopic parameters. For the target selection in C3, stars were chosen as in C1 and C2 to cover a wide range in parameter space to better understand the performance and noise characteristics. For C3 we still detected oscillations in 73% of the observed stars that we proposed. Future K2 campaigns hold great promise for the study of nearby clusters and the chemical evolution and age-metallicity relation of nearby field stars in the solar neighbourhood. We expect oscillations to be detected in ~388 short-cadence targets if the K2 mission continues until C18, which will greatly complement the ~500 detections of solar-like oscillations made for short-cadence targets during the nominal Kepler mission. For ~30-40 of these, including several members of the Hyades open cluster, we furthermore expect that inference from interferometry should be possible.",
keywords = "astro-ph.SR",
author = "Lund, {Mikkel N.} and Chaplin, {William J.} and Luca Casagrande and Aguirre, {V{\'i}ctor Silva} and Sarbani Basu and Allyson Bieryla and J{\o}rgen Christensen-Dalsgaard and Latham, {David W.} and White, {Timothy R.} and Davies, {Guy R.} and Daniel Huber and Buchhave, {Lars A.} and Rasmus Handberg",
note = "17 pages, 15 figures, 4 tables; accepted for publication in PASP",
year = "2016",
month = nov,
day = "8",
doi = "10.1088/1538-3873/128/970/124204",
language = "English",
volume = "128",
journal = "Publications of the Astronomical Society of the Pacific",
issn = "0004-6280",
publisher = "Astronomical Society of the Pacific",
number = "970",

}

RIS

TY - JOUR

T1 - Asteroseismic properties of solar-type stars observed with the NASA K2 mission

T2 - results from Campaigns 1-3 and prospects for future observations

AU - Lund, Mikkel N.

AU - Chaplin, William J.

AU - Casagrande, Luca

AU - Aguirre, Víctor Silva

AU - Basu, Sarbani

AU - Bieryla, Allyson

AU - Christensen-Dalsgaard, Jørgen

AU - Latham, David W.

AU - White, Timothy R.

AU - Davies, Guy R.

AU - Huber, Daniel

AU - Buchhave, Lars A.

AU - Handberg, Rasmus

N1 - 17 pages, 15 figures, 4 tables; accepted for publication in PASP

PY - 2016/11/8

Y1 - 2016/11/8

N2 - We present an asteroseismic analysis of 33 solar-type stars observed in short cadence during Campaigns (C) 1-3 of the NASA K2 mission. We were able to extract both average seismic parameters and individual mode frequencies for stars with dominant frequencies up to ~3300{\mu}Hz, and we find that data for some targets are good enough to allow for a measurement of the rotational splitting. Modelling of the extracted parameters is performed by using grid-based methods using average parameters and individual frequencies together with spectroscopic parameters. For the target selection in C3, stars were chosen as in C1 and C2 to cover a wide range in parameter space to better understand the performance and noise characteristics. For C3 we still detected oscillations in 73% of the observed stars that we proposed. Future K2 campaigns hold great promise for the study of nearby clusters and the chemical evolution and age-metallicity relation of nearby field stars in the solar neighbourhood. We expect oscillations to be detected in ~388 short-cadence targets if the K2 mission continues until C18, which will greatly complement the ~500 detections of solar-like oscillations made for short-cadence targets during the nominal Kepler mission. For ~30-40 of these, including several members of the Hyades open cluster, we furthermore expect that inference from interferometry should be possible.

AB - We present an asteroseismic analysis of 33 solar-type stars observed in short cadence during Campaigns (C) 1-3 of the NASA K2 mission. We were able to extract both average seismic parameters and individual mode frequencies for stars with dominant frequencies up to ~3300{\mu}Hz, and we find that data for some targets are good enough to allow for a measurement of the rotational splitting. Modelling of the extracted parameters is performed by using grid-based methods using average parameters and individual frequencies together with spectroscopic parameters. For the target selection in C3, stars were chosen as in C1 and C2 to cover a wide range in parameter space to better understand the performance and noise characteristics. For C3 we still detected oscillations in 73% of the observed stars that we proposed. Future K2 campaigns hold great promise for the study of nearby clusters and the chemical evolution and age-metallicity relation of nearby field stars in the solar neighbourhood. We expect oscillations to be detected in ~388 short-cadence targets if the K2 mission continues until C18, which will greatly complement the ~500 detections of solar-like oscillations made for short-cadence targets during the nominal Kepler mission. For ~30-40 of these, including several members of the Hyades open cluster, we furthermore expect that inference from interferometry should be possible.

KW - astro-ph.SR

U2 - 10.1088/1538-3873/128/970/124204

DO - 10.1088/1538-3873/128/970/124204

M3 - Article

VL - 128

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

SN - 0004-6280

IS - 970

M1 - 124204

ER -