SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars
International audience SIAMOIS is a project devoted to ground-based asteroseismology, involving an instrument to be installed at the Dome C Concordia station in Antarctica. SIAMOIS provides an asteroseismic programme that can follow the way currently opened by the space project CoRoT, with unique in...
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ftunivparis:oai:HAL:hal-03743417v1 2024-05-19T07:32:19+00:00 SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars Mosser, Benoît Appourchaux, Thierry Catala, Claude Buey, Jean-Tristan Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) Institut d'astrophysique spatiale (IAS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) Göttingen, Germany, Germany 2007-08-20 https://hal.science/hal-03743417 https://doi.org/10.1088/1742-6596/118/1/012042 en eng HAL CCSD info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/118/1/012042 hal-03743417 https://hal.science/hal-03743417 BIBCODE: 2008JPhCS.118a2042M doi:10.1088/1742-6596/118/1/012042 Journal of Physics. Conference Series Proceedings Of The Second HELAS International Conference: Helioseismology, Asteroseismology And MHD Connections https://hal.science/hal-03743417 Proceedings Of The Second HELAS International Conference: Helioseismology, Asteroseismology And MHD Connections, Aug 2007, Göttingen, Germany, Germany. pp.2042, ⟨10.1088/1742-6596/118/1/012042⟩ [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] info:eu-repo/semantics/conferenceObject Conference papers 2007 ftunivparis https://doi.org/10.1088/1742-6596/118/1/012042 2024-04-23T03:36:00Z International audience SIAMOIS is a project devoted to ground-based asteroseismology, involving an instrument to be installed at the Dome C Concordia station in Antarctica. SIAMOIS provides an asteroseismic programme that can follow the way currently opened by the space project CoRoT, with unique information on G and K type bright stars on the main sequence. In addition, spectrometric observations with SIAMOIS will be able to detect oscillation modes that cannot be analyzed in photometry: the Doppler data, less affected by the stellar activity noise, yield a more precise mode structure inversion. The SIAMOIS concept is based on Fourier Transform interferometry. Such a principle leads to a small instrument designed and developed for the harsh conditions in Antarctic. The instrument will be fully automatic, with no moving parts, and a very simple initial set up in Antarctic. The dedicated scientific programme will avoid the complications related to a versatile instrument. Data reduction will be performed in real time, and the transfer of the asteroseismic data to Europe will require only a modest bandwidth. SIAMOIS will observe with a dedicated small 40-cm telescope. Dome C appears to be the ideal place for ground-based asteroseismic observations. The unequalled weather conditions yield a duty cycle as high as 90% over 3 months, as was observed during the 2005 wintering. This high duty cycle, a crucial point for asteroseismology, is comparable to the best space-based observations. Long time series (up to 3 months) will be possible, thanks to the long duration of the polar night. SIAMOIS can be seen as one of the very first observational projects in astronomy at Dome C. Its scientific programme will take full advantage of the unique quality of this site, and will constitute a necessary first step in preparation of future more ambitious programmes requiring more sophisticated instrumentation and larger collectors. Conference Object Antarc* Antarctic Antarctica polar night Université de Paris: Portail HAL Journal of Physics: Conference Series 118 012042 |
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Université de Paris: Portail HAL |
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ftunivparis |
language |
English |
topic |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
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[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] Mosser, Benoît Appourchaux, Thierry Catala, Claude Buey, Jean-Tristan SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars |
topic_facet |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
description |
International audience SIAMOIS is a project devoted to ground-based asteroseismology, involving an instrument to be installed at the Dome C Concordia station in Antarctica. SIAMOIS provides an asteroseismic programme that can follow the way currently opened by the space project CoRoT, with unique information on G and K type bright stars on the main sequence. In addition, spectrometric observations with SIAMOIS will be able to detect oscillation modes that cannot be analyzed in photometry: the Doppler data, less affected by the stellar activity noise, yield a more precise mode structure inversion. The SIAMOIS concept is based on Fourier Transform interferometry. Such a principle leads to a small instrument designed and developed for the harsh conditions in Antarctic. The instrument will be fully automatic, with no moving parts, and a very simple initial set up in Antarctic. The dedicated scientific programme will avoid the complications related to a versatile instrument. Data reduction will be performed in real time, and the transfer of the asteroseismic data to Europe will require only a modest bandwidth. SIAMOIS will observe with a dedicated small 40-cm telescope. Dome C appears to be the ideal place for ground-based asteroseismic observations. The unequalled weather conditions yield a duty cycle as high as 90% over 3 months, as was observed during the 2005 wintering. This high duty cycle, a crucial point for asteroseismology, is comparable to the best space-based observations. Long time series (up to 3 months) will be possible, thanks to the long duration of the polar night. SIAMOIS can be seen as one of the very first observational projects in astronomy at Dome C. Its scientific programme will take full advantage of the unique quality of this site, and will constitute a necessary first step in preparation of future more ambitious programmes requiring more sophisticated instrumentation and larger collectors. |
author2 |
Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS) Institut d'astrophysique spatiale (IAS) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales Paris (CNES) |
format |
Conference Object |
author |
Mosser, Benoît Appourchaux, Thierry Catala, Claude Buey, Jean-Tristan |
author_facet |
Mosser, Benoît Appourchaux, Thierry Catala, Claude Buey, Jean-Tristan |
author_sort |
Mosser, Benoît |
title |
SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars |
title_short |
SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars |
title_full |
SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars |
title_fullStr |
SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars |
title_full_unstemmed |
SIAMOIS: Seismic Interferometer to Measure Oscillations in the Interior of Stars |
title_sort |
siamois: seismic interferometer to measure oscillations in the interior of stars |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-03743417 https://doi.org/10.1088/1742-6596/118/1/012042 |
op_coverage |
Göttingen, Germany, Germany |
genre |
Antarc* Antarctic Antarctica polar night |
genre_facet |
Antarc* Antarctic Antarctica polar night |
op_source |
Journal of Physics. Conference Series Proceedings Of The Second HELAS International Conference: Helioseismology, Asteroseismology And MHD Connections https://hal.science/hal-03743417 Proceedings Of The Second HELAS International Conference: Helioseismology, Asteroseismology And MHD Connections, Aug 2007, Göttingen, Germany, Germany. pp.2042, ⟨10.1088/1742-6596/118/1/012042⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/118/1/012042 hal-03743417 https://hal.science/hal-03743417 BIBCODE: 2008JPhCS.118a2042M doi:10.1088/1742-6596/118/1/012042 |
op_doi |
https://doi.org/10.1088/1742-6596/118/1/012042 |
container_title |
Journal of Physics: Conference Series |
container_volume |
118 |
container_start_page |
012042 |
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1799470313492185088 |