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Frank Grundahl

Benefits of multiple sites for asteroseismic detections

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

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Benefits of multiple sites for asteroseismic detections. / Arentoft, T.; Tingley, B.; Christensen-Dalsgaard, J.; Kjeldsen, Hans; White, T. R.; Grundahl, F.

In: Royal Astronomical Society. Monthly Notices, Vol. 437, No. 2, 01.11.2013, p. 1318-1328.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Arentoft, T, Tingley, B, Christensen-Dalsgaard, J, Kjeldsen, H, White, TR & Grundahl, F 2013, 'Benefits of multiple sites for asteroseismic detections', Royal Astronomical Society. Monthly Notices, vol. 437, no. 2, pp. 1318-1328. https://doi.org/10.1093/mnras/stt1962

APA

Arentoft, T., Tingley, B., Christensen-Dalsgaard, J., Kjeldsen, H., White, T. R., & Grundahl, F. (2013). Benefits of multiple sites for asteroseismic detections. Royal Astronomical Society. Monthly Notices, 437(2), 1318-1328. https://doi.org/10.1093/mnras/stt1962

CBE

Arentoft T, Tingley B, Christensen-Dalsgaard J, Kjeldsen H, White TR, Grundahl F. 2013. Benefits of multiple sites for asteroseismic detections. Royal Astronomical Society. Monthly Notices. 437(2):1318-1328. https://doi.org/10.1093/mnras/stt1962

MLA

Arentoft, T. et al. "Benefits of multiple sites for asteroseismic detections". Royal Astronomical Society. Monthly Notices. 2013, 437(2). 1318-1328. https://doi.org/10.1093/mnras/stt1962

Vancouver

Arentoft T, Tingley B, Christensen-Dalsgaard J, Kjeldsen H, White TR, Grundahl F. Benefits of multiple sites for asteroseismic detections. Royal Astronomical Society. Monthly Notices. 2013 Nov 1;437(2):1318-1328. https://doi.org/10.1093/mnras/stt1962

Author

Arentoft, T. ; Tingley, B. ; Christensen-Dalsgaard, J. ; Kjeldsen, Hans ; White, T. R. ; Grundahl, F. / Benefits of multiple sites for asteroseismic detections. In: Royal Astronomical Society. Monthly Notices. 2013 ; Vol. 437, No. 2. pp. 1318-1328.

Bibtex

@article{a355e4e214fc4689a4e4a00a43b31ab9,
title = "Benefits of multiple sites for asteroseismic detections",
abstract = "While Kepler has pushed the science of asteroseismology to limits unimaginable a decade ago, the need for asteroseismic studies of individual objects remains. This is primarily due to the limitations of single-colour intensity variations, which are much less sensitive to certain asteroseismic signals. The best way to obtain the necessary data is via very high resolution ground-based spectrography. Such observations measure the perceived radial-velocity shifts that arise due to stellar oscillations, which exhibit a much better signal-to-noise ratio than those for intensity observations. Stellar Observations Network Group (SONG), a proposed network of 1 m telescopes with spectrographs that can reach R = 110 000, was designed with this need in mind. With one node under commissioning in Tenerife and another under construction in China, an analysis of the scientific benefits of constructing additional nodes for the network is warranted. By convolving models of asteroseismic observables (mean densities, small separations) with the anticipated window functions for different node configurations, we explore the impact of the number of nodes in the SONG network on the anticipated results, across the areas of the Hertzsprung-Russell diagram where solar-like oscillations are found. We find that although time series from two SONG nodes, or in some cases even one node, will allow us to detect oscillations; the full SONG network, providing full temporal coverage, is needed for obtaining the science goals of SONG, including analysis of modes of spherical harmonic degree l = 3.",
keywords = "stars: fundamental parameters, stars: interiors, stars: oscillations",
author = "T. Arentoft and B. Tingley and J. Christensen-Dalsgaard and Hans Kjeldsen and White, {T. R.} and F. Grundahl",
year = "2013",
month = nov,
day = "1",
doi = "10.1093/mnras/stt1962",
language = "English",
volume = "437",
pages = "1318--1328",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

RIS

TY - JOUR

T1 - Benefits of multiple sites for asteroseismic detections

AU - Arentoft, T.

AU - Tingley, B.

AU - Christensen-Dalsgaard, J.

AU - Kjeldsen, Hans

AU - White, T. R.

AU - Grundahl, F.

PY - 2013/11/1

Y1 - 2013/11/1

N2 - While Kepler has pushed the science of asteroseismology to limits unimaginable a decade ago, the need for asteroseismic studies of individual objects remains. This is primarily due to the limitations of single-colour intensity variations, which are much less sensitive to certain asteroseismic signals. The best way to obtain the necessary data is via very high resolution ground-based spectrography. Such observations measure the perceived radial-velocity shifts that arise due to stellar oscillations, which exhibit a much better signal-to-noise ratio than those for intensity observations. Stellar Observations Network Group (SONG), a proposed network of 1 m telescopes with spectrographs that can reach R = 110 000, was designed with this need in mind. With one node under commissioning in Tenerife and another under construction in China, an analysis of the scientific benefits of constructing additional nodes for the network is warranted. By convolving models of asteroseismic observables (mean densities, small separations) with the anticipated window functions for different node configurations, we explore the impact of the number of nodes in the SONG network on the anticipated results, across the areas of the Hertzsprung-Russell diagram where solar-like oscillations are found. We find that although time series from two SONG nodes, or in some cases even one node, will allow us to detect oscillations; the full SONG network, providing full temporal coverage, is needed for obtaining the science goals of SONG, including analysis of modes of spherical harmonic degree l = 3.

AB - While Kepler has pushed the science of asteroseismology to limits unimaginable a decade ago, the need for asteroseismic studies of individual objects remains. This is primarily due to the limitations of single-colour intensity variations, which are much less sensitive to certain asteroseismic signals. The best way to obtain the necessary data is via very high resolution ground-based spectrography. Such observations measure the perceived radial-velocity shifts that arise due to stellar oscillations, which exhibit a much better signal-to-noise ratio than those for intensity observations. Stellar Observations Network Group (SONG), a proposed network of 1 m telescopes with spectrographs that can reach R = 110 000, was designed with this need in mind. With one node under commissioning in Tenerife and another under construction in China, an analysis of the scientific benefits of constructing additional nodes for the network is warranted. By convolving models of asteroseismic observables (mean densities, small separations) with the anticipated window functions for different node configurations, we explore the impact of the number of nodes in the SONG network on the anticipated results, across the areas of the Hertzsprung-Russell diagram where solar-like oscillations are found. We find that although time series from two SONG nodes, or in some cases even one node, will allow us to detect oscillations; the full SONG network, providing full temporal coverage, is needed for obtaining the science goals of SONG, including analysis of modes of spherical harmonic degree l = 3.

KW - stars: fundamental parameters

KW - stars: interiors

KW - stars: oscillations

U2 - 10.1093/mnras/stt1962

DO - 10.1093/mnras/stt1962

M3 - Journal article

VL - 437

SP - 1318

EP - 1328

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 2

ER -