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of 88
pro vyhledávání: '"ASTEROSEISMIC MEASUREMENT"'
Akademický článek
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Publikováno v:
Astronomy & Astrophysics, 668, pp. 1-15
Astronomy & Astrophysics, 668, 1-15
Astronomy & Astrophysics, 668, 1-15
Context. Gamma Doradus (hereafter $\gamma$~Dor) stars are gravity-mode pulsators whose periods carry information about the internal structure of the star. These periods are especially sensitive to the internal rotation and chemical mixing, two proces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::810dce209a98d1018a13ebd28c199520
https://doi.org/10.1051/0004-6361/202244365
https://doi.org/10.1051/0004-6361/202244365
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2021, 652, pp.A154. ⟨10.1051/0004-6361/202140615⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 652, pp.A154. ⟨10.1051/0004-6361/202140615⟩
Astronomy and Astrophysics-A&A, 2021, 652, pp.A154. ⟨10.1051/0004-6361/202140615⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 652, pp.A154. ⟨10.1051/0004-6361/202140615⟩
The Traditional Approximation of Rotation (TAR) is a treatment of the hydrodynamic equations of rotating and stably stratified fluids in which the action of the Coriolis acceleration along the direction of the entropy and chemical stratifications is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2562f582e17b1d7a79a3e9086ade88c5
https://cea.hal.science/cea-03330529/file/aa40615-21.pdf
https://cea.hal.science/cea-03330529/file/aa40615-21.pdf
Akademický článek
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K zobrazení výsledku je třeba se přihlásit.
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Autor:
Takata, M., Ouazzani, R-M, Saio, H., Christophe, S., Ballot, J., Antoci, Victoria, Salmon, S. J. A. J.
Publikováno v:
Takata, M, Ouazzani, R-M, Saio, H, Christophe, S, Ballot, J, Antoci, V & Salmon, S J A J 2020, ' Inferring the internal structure of gamma Doradus variables from Rossby modes : Extension of the nu-root Delta nu diagram ', Astronomy & Astrophysics, vol. 644, 138 . https://doi.org/10.1051/0004-6361/202038098
A unique type of oscillation modes has recently been identified in gamma Doradus variables. These low-frequency modes are called Rossby modes (or r modes) because they consist of Rossby waves in each spherical layer. These waves are characterised by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pure_au_____::2d242fa586ebf3c381ba0b84f407cda1
https://pure.au.dk/portal/da/publications/inferring-the-internal-structure-of-gamma-doradus-variables-from-rossby-modes(2845a30e-d868-4af7-98e7-a3c43e8ab190).html
https://pure.au.dk/portal/da/publications/inferring-the-internal-structure-of-gamma-doradus-variables-from-rossby-modes(2845a30e-d868-4af7-98e7-a3c43e8ab190).html
Autor:
Conny Aerts, P. V. F. Edelmann, L. Horst, Dominic M. Bowman, Friedrich K. Röpke, R. P. Ratnasingam, R. Andrassy
Publikováno v:
Astronomy & Astrophysics, 641, pp. 1-23
Astronomy & Astrophysics, 641, 1-23
Astronomy & Astrophysics
Astronomy & Astrophysics, 641, 1-23
Astronomy & Astrophysics
Context. Recent, nonlinear simulations of wave generation and propagation in full-star models have been carried out in the anelastic approximation using spectral methods. Although it makes long time steps possible, this approach excludes the physics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::291c787605ee08d0ff62785759357e32
http://arxiv.org/abs/2006.03011
http://arxiv.org/abs/2006.03011
Autor:
Timothy Van Reeth, Gang Li, Rhita-Maria Ouazzani, Victoria Antoci, Simon J. Murphy, Timothy R. Bedding
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 482 (2), pp.1757-1785. ⟨10.1093/mnras/sty2743⟩
Li, G, Bedding, T R, Murphy, S J, Reeth, T V, Antoci, V & Ouazzani, R M 2019, ' Period spacings of γ Doradus pulsators in the Kepler field : Detection methods and application to 22 slow rotators ', Monthly Notices of the Royal Astronomical Society, vol. 482, no. 2, pp. 1757-1785 . https://doi.org/10.1093/mnras/sty2743
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2019, 482 (2), pp.1757-1785. ⟨10.1093/mnras/sty2743⟩
Li, G, Bedding, T R, Murphy, S J, Reeth, T V, Antoci, V & Ouazzani, R M 2019, ' Period spacings of γ Doradus pulsators in the Kepler field : Detection methods and application to 22 slow rotators ', Monthly Notices of the Royal Astronomical Society, vol. 482, no. 2, pp. 1757-1785 . https://doi.org/10.1093/mnras/sty2743
In $\gamma$ Doradus stars, the g-mode period spacing shows an approximately linear relation with period. The slope is a new asteroseismic diagnostic, related to the rotation rate and the azimuthal order $m$. We report two automated methods, the `movi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfeecdf5f48e9cb71acc451439f8d03e
https://doi.org/10.1093/mnras/sty2743
https://doi.org/10.1093/mnras/sty2743
Autor:
Rhita-Maria Ouazzani, Gang Li, Timothy Van Reeth, Timothy R. Bedding, Nicholas H. Barbara, Victoria Antoci, Simon J. Murphy
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, ⟨10.1093/mnras/stz2906⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 491 (3), pp.3586-3605. ⟨10.1093/mnras/stz2906⟩
Li, G, Van Reeth, T, Bedding, T R, Murphy, S J, Antoci, V, Ouazzani, R M & Barbara, N H 2020, ' Gravity-mode period spacings and near-core rotation rates of 611 γ Doradus stars with Kepler ', Monthly Notices of the Royal Astronomical Society, vol. 491, no. 3, pp. 3586-3605 . https://doi.org/10.1093/mnras/stz2906
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, ⟨10.1093/mnras/stz2906⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 491 (3), pp.3586-3605. ⟨10.1093/mnras/stz2906⟩
Li, G, Van Reeth, T, Bedding, T R, Murphy, S J, Antoci, V, Ouazzani, R M & Barbara, N H 2020, ' Gravity-mode period spacings and near-core rotation rates of 611 γ Doradus stars with Kepler ', Monthly Notices of the Royal Astronomical Society, vol. 491, no. 3, pp. 3586-3605 . https://doi.org/10.1093/mnras/stz2906
We report our survey of γ Dor stars from the 4-yr Kepler mission. These stars pulsate mainly in g modes and r modes, showing period-spacing patterns in the amplitude spectra. The period-spacing patterns are sensitive to the chemical composition grad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4359323c7354a952f51e4db88a8e2e4f
https://hal.archives-ouvertes.fr/hal-03404574
https://hal.archives-ouvertes.fr/hal-03404574
Publikováno v:
Li, G, Van Reeth, T, Bedding, T R, Murphy, S J & Antoci, V 2019, ' Period spacings of γ Doradus pulsators in the Kepler field : Rossby and gravity modes in 82 stars ', Monthly Notices of the Royal Astronomical Society, vol. 487, no. 1, pp. 782-800 . https://doi.org/10.1093/mnras/stz1171
Rossby modes are the oscillations in a rotating fluid, whose restoring force is the Coriolis force. They provide an additional diagnostic to understand the rotation of stars, which complicates asteroseismic modelling. We report 82 $\gamma$\,Doradus s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a4cdb307e5f9476230dc91f30f06546
https://pure.au.dk/portal/da/publications/period-spacings-of--doradus-pulsators-in-the-kepler-field(326b24ef-0ac5-4365-8a57-d4c58de2d8b6).html
https://pure.au.dk/portal/da/publications/period-spacings-of--doradus-pulsators-in-the-kepler-field(326b24ef-0ac5-4365-8a57-d4c58de2d8b6).html
Autor:
Dominic M. Bowman, Coralie Neiner, B. Buysschaert, Stéphane Mathis, Vincent Prat, J. Van Beeck, Conny Aerts
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 627, pp.A64. ⟨10.1051/0004-6361/201935462⟩
Astronomy and Astrophysics-A&A, 2019, 627, pp.A64. ⟨10.1051/0004-6361/201935462⟩
Astronomy & Astrophysics, 627, pp. 1-9
Astronomy & Astrophysics, 627, 1-9
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 627, pp.A64. ⟨10.1051/0004-6361/201935462⟩
Astronomy and Astrophysics-A&A, 2019, 627, pp.A64. ⟨10.1051/0004-6361/201935462⟩
Astronomy & Astrophysics, 627, pp. 1-9
Astronomy & Astrophysics, 627, 1-9
Context. Stellar magnetic fields are one of the candidates often invoked to explain the missing transport of angular momentum observed in the models of stellar interiors. However, the properties of an internal magnetic field and the consequences of i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f82f15d76de3dd3c18335981892f3262
https://hal-cea.archives-ouvertes.fr/cea-02170472
https://hal-cea.archives-ouvertes.fr/cea-02170472