[en] Inspired by the so appealing example of red giants, where going from a handful of stars to thousands revealed the structure of the eigenspectrum, we inspected a large homogeneous set of around 1860 δ Scuti stars observed with CoRoT. This unique data set reveals a common regular pattern which appears to be in agreement with island modes featured by theoretical non-perturbative treatments of fast rotation. The comparison of these data with models and linear stability calculations suggests that spectra can be fruitfully characterized to first order by a few parameters which might play the role of seismic indices for δ Scuti stars, as Δv and v[SUB]max[/SUB] do for red giants. The existence of this pattern offers an observational support for guiding further theoretical works on fast rotation. It also provides a framework for further investigation of the observational material collected by CoRoT ([1]) and Kepler ([2]). Finally, it sketches out the perspective of using δ Scuti stars pulsations for ensemble asteroseismology
Research Center/Unit :
STAR - Space sciences, Technologies and Astrophysics Research - ULiège
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Michel, Eric
Dupret, Marc-Antoine ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Reese, Daniel
Ouazzani, Rhita-Maria
Debosscher, Jonas
Hernández, Antonio García
Belkacem, Kevin
Samadi, Reza
Salmon, Sébastien ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Suarez, Juan Carlos
Forteza, Sebastia Barceló
Language :
English
Title :
What CoRoT tells us about δ Scuti stars. Existence of a regular pattern and seismic indices to characterize stars
Publication date :
01 October 2017
Event name :
Seismology of the Sun and the Distant Stars 2016 - Joint TASC2 & KASC9 Workshop – SPACEINN & HELAS8 Conference
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Bibliography
A. Baglin, M. Auvergne, P. Barge, M. Deleuil, C. Catala, E. Michel, W. Weiss, COROTTeam, Sci-entificObjectivesforaMinisat:CoRoT, inTheCoRoTMissionPre-LaunchStatus-StellarSeis-mologyandPlanetFinding, editedbyM. Fridlund, A. Baglin, J. Lochard, L. Conroy (2006), Vol. 1306ofESASpecialPublication, p. 33
W. J. Borucki, D. Koch, G. Basri, N. Batalha, T. Brown, D. Caldwell, J. Caldwell, J. Christensen-Dalsgaard, W. D. Cochran, E. DeVoreetal., Science327, 977 (2010)
M. Breger, Scutistars (Review), in Delta Scutiand Related Stars, editedbyM. Breger, M. Montgomery (2000), Vol. 210 of Astronomical Society of the Pa-cific Conference Series, p. 3
E. Rodríguez, M. Breger, A & A, 366, 178 (2001)
F. Royer, M. Gebran, R. Monier, S. Adelman, B. Smalley, O. Pintado, A. Reiners, G. Hill, A. Gul-liver, A & A, 562, A84 (2014), 1401. 2372
F. Lignières, M. Rieutord, D. Reese, A & A, 455, 607 (2006), astro-ph/0604312
D. Reese, F. Lignières, M. Rieutord, A & A, 455, 621 (2006), astro-ph/0605503
S. BarcelóForteza, E. Michel, T. RocaCortés, R. A. García, A & A, 579, A133 (2015), 1506. 00543
D. M. Bowman, D. W. Kurtz, M. Breger, S. J. Mur-phy, D. L. Holdsworth, MNRAS, 460, 1970 (2016), 1605. 03955
A. GarcíaHernández, A. Moya, E. Michel, J. C. Suárez, E. Poretti, S. Martín-Ruíz, P. J. Amado, R. Garrido, E. Rodríguez, M. Raineretal., A & A, 559, A63 (2013), 1307. 2739
M. Paparó, J. M. Benk?o, M. Hareter, J. A. Guzik, ApJS, 224, 41 (2016), 1603. 09161
M. Breger, L. Balona, P. Lenz, J. K. Hollek, D. W. Kurtz, G. Catanzaro, M. Marconi, A. A. Pamyatnykh, B. Smalley, J. C. Suárezetal., MNRAS, 414, 1721 (2011), 1012. 4373
A. GarcíaHernández, S. Martín-Ruiz, M. J. P. F. G. Monteiro, J. C. Suárez, D. R. Reese, J. Pascual-Granado, R. Garrido, ApJL, 811, L29 (2015), 1509. 01111
M. A. Dupret, A. Grigahcène, R. Garrido, M. Gabriel, R. Scuflaire, A & A, 414, L17 (2004)
E. Michel, M. M. Hernández, G. Houdek, M. J. Goupil, Y. Lebreton, F. PérezHernández, A. Baglin, J. A. Belmonte, F. Soufi, A & A, 342, 153 (1999)
K. Zwintz, L. Fossati, T. Ryabchikova, D. Guen-ther, C. Aerts, T. G. Barnes, N. Themeßl, D. Lorenz, C. Cameron, R. Kuschnigetal., Science345, 550 (2014), 1407. 4928
A. Baglin, I. 1Thegeneralframework (2016), p. 5
J. Debosscher, L. M. Sarro, M. López, M. Deleuil, C. Aerts, M. Auvergne, A. Baglin, F. Baudin, M. Chadid, S. Charpinetetal., A & A, 506, 519 (2009)
E. Rodríguez, M. J. López-González, P. LópezdeCoca, A & AS, 144, 469 (2000)
M. A. C. Perryman, TheHIPPARCOSCatalogueContents, inHipparcos-Venice'97, editedbyR. M. Bonnet, E. Høg, P. L. Bernacca, L. Emiliani, A. Blaauw, C. Turon, J. Kovalevsky, L. Lindegren, H. Hassan, M. Bouffardetal. (1997), Vol. 402ofESASpecialPublication, pp. 1-4
A. Udalski, A. Olech, M. Szymanski, J. Kaluzny, M. Kubiak, M. Mateo, W. Krzeminski, K. Z. Stanek, ActaAstron., 47, 1 (1997), astro-ph/9704228
C. Alcock, R. A. Allsman, D. R. Alves, T. S. Axelrod, A. C. Becker, D. P. Bennett, K. H. Cook, K. C. Free-man, M. Geha, K. Griestetal., ApJ, 536, 798 (2000)
M. Auvergne, P. Bodin, L. Boisnard, J. T. Buey, S. Chaintreuil, G. Epstein, M. Jouret, T. Lam-Trong, P. Levacher, A. Magnanetal., A & A, 506, 411 (2009), 0901. 2206
R. Scuflaire, S. Théado, J. Montalbán, A. Miglio, P. O. Bourge, M. Godart, A. Thoul, A. Noels, Ap & SS, 316, 83 (2008), 0712. 3471
A. Grigahcène, M. A. Dupret, M. Gabriel, R. Garrido, R. Scuflaire, A & A, 434, 1055 (2005)
L. A. Balona, W. A. Dziembowski, MNRAS, 417, 591 (2011)
D. Reese, F. Lignières, M. Rieutord, A & A, 481, 449 (2008), 0801. 4630
R. M. Ouazzani, I. W. Roxburgh, M. A. Dupret, A & A, 579, A116 (2015), 1505. 01088
F. Lignières, B. Georgeot, A & A, 500, 1173 (2009), 0903. 1768
K. B. MacGregor, S. Jackson, A. Skumanich, T. S. Metcalfe, ApJ, 663, 560 (2007), 0704. 1275
D. R. Reese, K. B. MacGregor, S. Jackson, A. Sku-manich, T. S. Metcalfe, A & A, 506, 189 (2009), 0903. 4854
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