Acoustic glitches in solar-type stars from Kepler

A. Mazumdar; M.J.P.F.G. Monteiro; M.S. Cunha; J. Ballot; H.M. Antia; S. Basu; G. Houdek; V. Silva Aguirre; J. Christensen-Dalsgaard; S. Mathur; R.A. García; D. Salabert; G.A. Verner; W.J. Chaplin; T.S. Metcalfe

doi:10.1002/asna.201211825

Acoustic glitches in solar-type stars from Kepler

A. Mazumdar, M.J.P.F.G. Monteiro, M.S. Cunha, J. Ballot, H.M. Antia, S. Basu, G. Houdek, V. Silva Aguirre, J. Christensen-Dalsgaard, S. Mathur, R.A. García, D. Salabert, G.A. Verner, W.J. Chaplin, T.S. Metcalfe

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We report the measurement of the acoustic locations of layers of sharp variation in sound speed in the interiors of 19 solar-type stars observed by the Kepler mission. The oscillatory signal in the frequencies arising due to the acoustic glitches at the base of the convection zone and the second helium ionisation zone was utilised to determine their location by four independent methods. Despite the significantly different methods of analysis, remarkable agreement was found between the results of these four methods. Further, the extracted locations of these layers were found to be consistent with representative models of the stars.

Original language	English
Pages (from-to)	1040-1043
Number of pages	4
Journal	Astronomische Nachrichten
Volume	333
Issue number	10
DOIs	https://doi.org/10.1002/asna.201211825
Publication status	Published - 1 Dec 2012

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10.1002/asna.201211825

Sounding the Stars---The Birmingham and Queen Mary Seismology Programme
Elsworth, Y., Chaplin, B. & Miglio, A.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/12 → 31/03/15
Project: Research Councils

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Mazumdar, A., Monteiro, M. J. P. F. G., Cunha, M. S., Ballot, J., Antia, H. M., Basu, S., Houdek, G., Silva Aguirre, V., Christensen-Dalsgaard, J., Mathur, S., García, R. A., Salabert, D., Verner, G. A., Chaplin, W. J., & Metcalfe, T. S. (2012). Acoustic glitches in solar-type stars from Kepler. Astronomische Nachrichten, 333(10), 1040-1043. https://doi.org/10.1002/asna.201211825

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AU - Mazumdar, A.

AU - Monteiro, M.J.P.F.G.

AU - Cunha, M.S.

AU - Ballot, J.

AU - Antia, H.M.

AU - Basu, S.

AU - Houdek, G.

AU - Silva Aguirre, V.

AU - Christensen-Dalsgaard, J.

AU - Mathur, S.

AU - García, R.A.

AU - Salabert, D.

AU - Verner, G.A.

AU - Chaplin, W.J.

AU - Metcalfe, T.S.

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Acoustic glitches in solar-type stars from Kepler

Abstract

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Sounding the Stars---The Birmingham and Queen Mary Seismology Programme

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