Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars
Mon.Not.Roy.Astron.Soc.377:584-594,2007 Measuring solar-like oscillations in an ensemble of stars in a cluster, holds promise for testing stellar structure and evolution more stringently than just fitting parameters to single field stars. The most ambitious attempt to pursue these prospects was by G...
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| creator | Stello, D Bruntt, H Kjeldsen, H Bedding, T. R Arentoft, T Gilliland, R. L Nuspl, J Kim, S. -L Kang, Y. B Koo, J. -R Lee, J. -A Sterken, C Lee, C. -U Jensen, H. R Jacob, A. P Szabo, R Frandsen, S Csubry, Z Dind, Z. E Bouzid, M. Y Dall, T. H Kiss, L. L |
| description | Mon.Not.Roy.Astron.Soc.377:584-594,2007 Measuring solar-like oscillations in an ensemble of stars in a cluster, holds
promise for testing stellar structure and evolution more stringently than just
fitting parameters to single field stars. The most ambitious attempt to pursue
these prospects was by Gilliland et al. (1993) who targeted 11 turn-off stars
in the open cluster M67 (NGC 2682), but the oscillation amplitudes were too
small ( |
| doi_str_mv | 10.48550/arxiv.astro-ph/0702092 |
| format | Article |
| fullrecord | <record><control><sourceid>arxiv_GOX</sourceid><recordid>TN_cdi_arxiv_primary_astro_ph_0702092</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>astro_ph_0702092</sourcerecordid><originalsourceid>FETCH-arxiv_primary_astro_ph_07020923</originalsourceid><addsrcrecordid>eNqNzr8OgjAQgPEuDkZ9Bm9xBCr-nw1GBzZ3coEKF0vb3BWjb68xPoDTt3zDT6n5Uqfr_WajM-QnPVKUyD4JXaZ3OteHfKzacrCRhKKBGvuA1DrwDmJnwAfjoLaDRMNQbncpXC4pFA9qjKsN3DyDeIucWLp_bqnJWozknQA5YNNAS-giSESWqRrd0IqZ_TpRi1NxPZ6TL6wKTD3yq_oCq9BVP-Dq3-8N9QVM1Q</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars</title><source>arXiv.org</source><creator>Stello, D ; Bruntt, H ; Kjeldsen, H ; Bedding, T. R ; Arentoft, T ; Gilliland, R. L ; Nuspl, J ; Kim, S. -L ; Kang, Y. B ; Koo, J. -R ; Lee, J. -A ; Sterken, C ; Lee, C. -U ; Jensen, H. R ; Jacob, A. P ; Szabo, R ; Frandsen, S ; Csubry, Z ; Dind, Z. E ; Bouzid, M. Y ; Dall, T. H ; Kiss, L. L</creator><creatorcontrib>Stello, D ; Bruntt, H ; Kjeldsen, H ; Bedding, T. R ; Arentoft, T ; Gilliland, R. L ; Nuspl, J ; Kim, S. -L ; Kang, Y. B ; Koo, J. -R ; Lee, J. -A ; Sterken, C ; Lee, C. -U ; Jensen, H. R ; Jacob, A. P ; Szabo, R ; Frandsen, S ; Csubry, Z ; Dind, Z. E ; Bouzid, M. Y ; Dall, T. H ; Kiss, L. L</creatorcontrib><description>Mon.Not.Roy.Astron.Soc.377:584-594,2007 Measuring solar-like oscillations in an ensemble of stars in a cluster, holds
promise for testing stellar structure and evolution more stringently than just
fitting parameters to single field stars. The most ambitious attempt to pursue
these prospects was by Gilliland et al. (1993) who targeted 11 turn-off stars
in the open cluster M67 (NGC 2682), but the oscillation amplitudes were too
small (<20micromag) to obtain unambiguous detections. Like Gilliland et al.
(1993) we also aim at detecting solar-like oscillations in M67, but we target
red giant stars with expected amplitudes in the range 50-500micromag and
periods of 1 to 8 hours. We analyse our recently published photometry
measurements, obtained during a six-week multisite campaign using nine
telescopes around the world. The observations are compared with simulations and
with estimated properties of the stellar oscillations. Noise levels in the
Fourier spectra as low as 27micromag are obtained for single sites, while the
combined data reach 19micromag, making this the best photometric time series of
an ensemble of red giant stars. These data enable us to make the first test of
the scaling relations (used to estimate frequency and amplitude) with an
homogeneous ensemble of stars. The detected excess power is consistent with the
expected signal from stellar oscillations, both in terms of its frequency range
and amplitude. However, our results are limited by apparent high levels of
non-white noise, which cannot be clearly separated from the stellar signal.</description><identifier>DOI: 10.48550/arxiv.astro-ph/0702092</identifier><language>eng</language><subject>Physics - Astrophysics of Galaxies ; Physics - Cosmology and Nongalactic Astrophysics ; Physics - Earth and Planetary Astrophysics ; Physics - High Energy Astrophysical Phenomena ; Physics - Instrumentation and Methods for Astrophysics ; Physics - Solar and Stellar Astrophysics</subject><creationdate>2007-02</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/astro-ph/0702092$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.48550/arXiv.astro-ph/0702092$$DView paper in arXiv$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.1111/j.1365-2966.2007.11585.x$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink></links><search><creatorcontrib>Stello, D</creatorcontrib><creatorcontrib>Bruntt, H</creatorcontrib><creatorcontrib>Kjeldsen, H</creatorcontrib><creatorcontrib>Bedding, T. R</creatorcontrib><creatorcontrib>Arentoft, T</creatorcontrib><creatorcontrib>Gilliland, R. L</creatorcontrib><creatorcontrib>Nuspl, J</creatorcontrib><creatorcontrib>Kim, S. -L</creatorcontrib><creatorcontrib>Kang, Y. B</creatorcontrib><creatorcontrib>Koo, J. -R</creatorcontrib><creatorcontrib>Lee, J. -A</creatorcontrib><creatorcontrib>Sterken, C</creatorcontrib><creatorcontrib>Lee, C. -U</creatorcontrib><creatorcontrib>Jensen, H. R</creatorcontrib><creatorcontrib>Jacob, A. P</creatorcontrib><creatorcontrib>Szabo, R</creatorcontrib><creatorcontrib>Frandsen, S</creatorcontrib><creatorcontrib>Csubry, Z</creatorcontrib><creatorcontrib>Dind, Z. E</creatorcontrib><creatorcontrib>Bouzid, M. Y</creatorcontrib><creatorcontrib>Dall, T. H</creatorcontrib><creatorcontrib>Kiss, L. L</creatorcontrib><title>Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars</title><description>Mon.Not.Roy.Astron.Soc.377:584-594,2007 Measuring solar-like oscillations in an ensemble of stars in a cluster, holds
promise for testing stellar structure and evolution more stringently than just
fitting parameters to single field stars. The most ambitious attempt to pursue
these prospects was by Gilliland et al. (1993) who targeted 11 turn-off stars
in the open cluster M67 (NGC 2682), but the oscillation amplitudes were too
small (<20micromag) to obtain unambiguous detections. Like Gilliland et al.
(1993) we also aim at detecting solar-like oscillations in M67, but we target
red giant stars with expected amplitudes in the range 50-500micromag and
periods of 1 to 8 hours. We analyse our recently published photometry
measurements, obtained during a six-week multisite campaign using nine
telescopes around the world. The observations are compared with simulations and
with estimated properties of the stellar oscillations. Noise levels in the
Fourier spectra as low as 27micromag are obtained for single sites, while the
combined data reach 19micromag, making this the best photometric time series of
an ensemble of red giant stars. These data enable us to make the first test of
the scaling relations (used to estimate frequency and amplitude) with an
homogeneous ensemble of stars. The detected excess power is consistent with the
expected signal from stellar oscillations, both in terms of its frequency range
and amplitude. However, our results are limited by apparent high levels of
non-white noise, which cannot be clearly separated from the stellar signal.</description><subject>Physics - Astrophysics of Galaxies</subject><subject>Physics - Cosmology and Nongalactic Astrophysics</subject><subject>Physics - Earth and Planetary Astrophysics</subject><subject>Physics - High Energy Astrophysical Phenomena</subject><subject>Physics - Instrumentation and Methods for Astrophysics</subject><subject>Physics - Solar and Stellar Astrophysics</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNqNzr8OgjAQgPEuDkZ9Bm9xBCr-nw1GBzZ3coEKF0vb3BWjb68xPoDTt3zDT6n5Uqfr_WajM-QnPVKUyD4JXaZ3OteHfKzacrCRhKKBGvuA1DrwDmJnwAfjoLaDRMNQbncpXC4pFA9qjKsN3DyDeIucWLp_bqnJWozknQA5YNNAS-giSESWqRrd0IqZ_TpRi1NxPZ6TL6wKTD3yq_oCq9BVP-Dq3-8N9QVM1Q</recordid><startdate>20070203</startdate><enddate>20070203</enddate><creator>Stello, D</creator><creator>Bruntt, H</creator><creator>Kjeldsen, H</creator><creator>Bedding, T. R</creator><creator>Arentoft, T</creator><creator>Gilliland, R. L</creator><creator>Nuspl, J</creator><creator>Kim, S. -L</creator><creator>Kang, Y. B</creator><creator>Koo, J. -R</creator><creator>Lee, J. -A</creator><creator>Sterken, C</creator><creator>Lee, C. -U</creator><creator>Jensen, H. R</creator><creator>Jacob, A. P</creator><creator>Szabo, R</creator><creator>Frandsen, S</creator><creator>Csubry, Z</creator><creator>Dind, Z. E</creator><creator>Bouzid, M. Y</creator><creator>Dall, T. H</creator><creator>Kiss, L. L</creator><scope>GOX</scope></search><sort><creationdate>20070203</creationdate><title>Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars</title><author>Stello, D ; Bruntt, H ; Kjeldsen, H ; Bedding, T. R ; Arentoft, T ; Gilliland, R. L ; Nuspl, J ; Kim, S. -L ; Kang, Y. B ; Koo, J. -R ; Lee, J. -A ; Sterken, C ; Lee, C. -U ; Jensen, H. R ; Jacob, A. P ; Szabo, R ; Frandsen, S ; Csubry, Z ; Dind, Z. E ; Bouzid, M. Y ; Dall, T. H ; Kiss, L. L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_astro_ph_07020923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Physics - Astrophysics of Galaxies</topic><topic>Physics - Cosmology and Nongalactic Astrophysics</topic><topic>Physics - Earth and Planetary Astrophysics</topic><topic>Physics - High Energy Astrophysical Phenomena</topic><topic>Physics - Instrumentation and Methods for Astrophysics</topic><topic>Physics - Solar and Stellar Astrophysics</topic><toplevel>online_resources</toplevel><creatorcontrib>Stello, D</creatorcontrib><creatorcontrib>Bruntt, H</creatorcontrib><creatorcontrib>Kjeldsen, H</creatorcontrib><creatorcontrib>Bedding, T. R</creatorcontrib><creatorcontrib>Arentoft, T</creatorcontrib><creatorcontrib>Gilliland, R. L</creatorcontrib><creatorcontrib>Nuspl, J</creatorcontrib><creatorcontrib>Kim, S. -L</creatorcontrib><creatorcontrib>Kang, Y. B</creatorcontrib><creatorcontrib>Koo, J. -R</creatorcontrib><creatorcontrib>Lee, J. -A</creatorcontrib><creatorcontrib>Sterken, C</creatorcontrib><creatorcontrib>Lee, C. -U</creatorcontrib><creatorcontrib>Jensen, H. R</creatorcontrib><creatorcontrib>Jacob, A. P</creatorcontrib><creatorcontrib>Szabo, R</creatorcontrib><creatorcontrib>Frandsen, S</creatorcontrib><creatorcontrib>Csubry, Z</creatorcontrib><creatorcontrib>Dind, Z. E</creatorcontrib><creatorcontrib>Bouzid, M. Y</creatorcontrib><creatorcontrib>Dall, T. H</creatorcontrib><creatorcontrib>Kiss, L. L</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Stello, D</au><au>Bruntt, H</au><au>Kjeldsen, H</au><au>Bedding, T. R</au><au>Arentoft, T</au><au>Gilliland, R. L</au><au>Nuspl, J</au><au>Kim, S. -L</au><au>Kang, Y. B</au><au>Koo, J. -R</au><au>Lee, J. -A</au><au>Sterken, C</au><au>Lee, C. -U</au><au>Jensen, H. R</au><au>Jacob, A. P</au><au>Szabo, R</au><au>Frandsen, S</au><au>Csubry, Z</au><au>Dind, Z. E</au><au>Bouzid, M. Y</au><au>Dall, T. H</au><au>Kiss, L. L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars</atitle><date>2007-02-03</date><risdate>2007</risdate><abstract>Mon.Not.Roy.Astron.Soc.377:584-594,2007 Measuring solar-like oscillations in an ensemble of stars in a cluster, holds
promise for testing stellar structure and evolution more stringently than just
fitting parameters to single field stars. The most ambitious attempt to pursue
these prospects was by Gilliland et al. (1993) who targeted 11 turn-off stars
in the open cluster M67 (NGC 2682), but the oscillation amplitudes were too
small (<20micromag) to obtain unambiguous detections. Like Gilliland et al.
(1993) we also aim at detecting solar-like oscillations in M67, but we target
red giant stars with expected amplitudes in the range 50-500micromag and
periods of 1 to 8 hours. We analyse our recently published photometry
measurements, obtained during a six-week multisite campaign using nine
telescopes around the world. The observations are compared with simulations and
with estimated properties of the stellar oscillations. Noise levels in the
Fourier spectra as low as 27micromag are obtained for single sites, while the
combined data reach 19micromag, making this the best photometric time series of
an ensemble of red giant stars. These data enable us to make the first test of
the scaling relations (used to estimate frequency and amplitude) with an
homogeneous ensemble of stars. The detected excess power is consistent with the
expected signal from stellar oscillations, both in terms of its frequency range
and amplitude. However, our results are limited by apparent high levels of
non-white noise, which cannot be clearly separated from the stellar signal.</abstract><doi>10.48550/arxiv.astro-ph/0702092</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Earth and Planetary Astrophysics Physics - High Energy Astrophysical Phenomena Physics - Instrumentation and Methods for Astrophysics Physics - Solar and Stellar Astrophysics |
| title | Multisite campaign on the open cluster M67. II. Evidence for solar-like oscillations in red giant stars |
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