SuperWASP observations of pulsating Am stars

B. Smalley; D.~W. Kurtz; A.~M.~S. Smith; L. Fossati; D.~R. Anderson; S.~C.~C. Barros; O.~W. Butters; Andrew Collier Cameron; D.~J. Christian; B. Enoch; F. Faedi; C.~A. Haswell; C. Hellier; S. Holmes; K. Horne; S.~R. Kane; T.~A. Lister; P.~F.~L. Maxted; A.~J. Norton; N. Parley; D. Pollacco; E.~K. Simpson; I. Skillen; J. Southworth; R.~A. Street; R.~G. West; P.~J. Wheatley; P.~L. Wood

doi:10.1051/0004-6361/201117230

SuperWASP observations of pulsating Am stars

B. Smalley, D.~W. Kurtz, A.~M.~S. Smith, L. Fossati, D.~R. Anderson, S.~C.~C. Barros, O.~W. Butters, Andrew Collier Cameron, D.~J. Christian, B. Enoch, F. Faedi, C.~A. Haswell, C. Hellier, S. Holmes, K. Horne, S.~R. Kane, T.~A. Lister, P.~F.~L. Maxted, A.~J. Norton, N. ParleyD. Pollacco, E.~K. Simpson, I. Skillen, J. Southworth, R.~A. Street, R.~G. West, P.~J. Wheatley, P.~L. Wood

School of Physics and Astronomy

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

Abstract

We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating δ Sct and γ Dor stars, with low amplitudes that have been missed in previous, less extensive studies. While the amplitudes are generally low, the presence of pulsation in Am stars places a strong constraint on atmospheric convection, and may require the pulsation to be laminar. While some pulsating Am stars have been previously found to be δ Sct stars, the vast majority of Am stars known to pulsate are presented in this paper. They will form the basis of future statistical studies of pulsation in the presence of atomic diffusion.

Original language	English
Article number	A3
Journal	Astronomy & Astrophysics
Volume	535
DOIs	https://doi.org/10.1051/0004-6361/201117230
Publication status	Published - 1 Nov 2011

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10.1051/0004-6361/201117230

Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089
Bonnell, I. A. (PI), Cameron, A. C. (CoI), Dominik, M. (CoI), Driver, S. P. (CoI), Greaves, J. S. (CoI), Horne, K. D. (CoI), Jardine, M. M. (CoI), Wood, K. (CoI) & Zhao, H. (CoI)
Science & Technology Facilities Council
1/04/09 → 31/03/12
Project: Standard
Wide Area Search for Planets: Project support for the Wide Area Search for Planets
Cameron, A. C. (PI)
Science & Technology Facilities Council
1/08/08 → 31/07/11
Project: Standard

Cite this

Smalley, B., Kurtz, D. W., Smith, A. M. S., Fossati, L., Anderson, D. R., Barros, S. C. C., Butters, O. W., Cameron, A. C., Christian, D. J., Enoch, B., Faedi, F., Haswell, C. A., Hellier, C., Holmes, S., Horne, K., Kane, S. R., Lister, T. A., Maxted, P. F. L., Norton, A. J., ... Wood, P. L. (2011). SuperWASP observations of pulsating Am stars. Astronomy & Astrophysics, 535, Article A3. https://doi.org/10.1051/0004-6361/201117230

@article{b7ed432b2d454b5c932d5adec4549eee,

title = "SuperWASP observations of pulsating Am stars",

abstract = "We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating δ Sct and γ Dor stars, with low amplitudes that have been missed in previous, less extensive studies. While the amplitudes are generally low, the presence of pulsation in Am stars places a strong constraint on atmospheric convection, and may require the pulsation to be laminar. While some pulsating Am stars have been previously found to be δ Sct stars, the vast majority of Am stars known to pulsate are presented in this paper. They will form the basis of future statistical studies of pulsation in the presence of atomic diffusion.",

author = "B. Smalley and D.~W. Kurtz and A.~M.~S. Smith and L. Fossati and D.~R. Anderson and S.~C.~C. Barros and O.~W. Butters and Cameron, {Andrew Collier} and D.~J. Christian and B. Enoch and F. Faedi and C.~A. Haswell and C. Hellier and S. Holmes and K. Horne and S.~R. Kane and T.~A. Lister and P.~F.~L. Maxted and A.~J. Norton and N. Parley and D. Pollacco and E.~K. Simpson and I. Skillen and J. Southworth and R.~A. Street and R.~G. West and P.~J. Wheatley and P.~L. Wood",

year = "2011",

month = nov,

day = "1",

doi = "10.1051/0004-6361/201117230",

language = "English",

volume = "535",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

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Smalley, B, Kurtz, DW, Smith, AMS, Fossati, L, Anderson, DR, Barros, SCC, Butters, OW, Cameron, AC, Christian, DJ, Enoch, B, Faedi, F, Haswell, CA, Hellier, C, Holmes, S, Horne, K, Kane, SR, Lister, TA, Maxted, PFL, Norton, AJ, Parley, N, Pollacco, D, Simpson, EK, Skillen, I, Southworth, J, Street, RA, West, RG, Wheatley, PJ & Wood, PL 2011, 'SuperWASP observations of pulsating Am stars', Astronomy & Astrophysics, vol. 535, A3. https://doi.org/10.1051/0004-6361/201117230

TY - JOUR

T1 - SuperWASP observations of pulsating Am stars

AU - Smalley, B.

AU - Kurtz, D.~W.

AU - Smith, A.~M.~S.

AU - Fossati, L.

AU - Anderson, D.~R.

AU - Barros, S.~C.~C.

AU - Butters, O.~W.

AU - Cameron, Andrew Collier

AU - Christian, D.~J.

AU - Enoch, B.

AU - Faedi, F.

AU - Haswell, C.~A.

AU - Hellier, C.

AU - Holmes, S.

AU - Horne, K.

AU - Kane, S.~R.

AU - Lister, T.~A.

AU - Maxted, P.~F.~L.

AU - Norton, A.~J.

AU - Parley, N.

AU - Pollacco, D.

AU - Simpson, E.~K.

AU - Skillen, I.

AU - Southworth, J.

AU - Street, R.~A.

AU - West, R.~G.

AU - Wheatley, P.~J.

AU - Wood, P.~L.

PY - 2011/11/1

Y1 - 2011/11/1

N2 - We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating δ Sct and γ Dor stars, with low amplitudes that have been missed in previous, less extensive studies. While the amplitudes are generally low, the presence of pulsation in Am stars places a strong constraint on atmospheric convection, and may require the pulsation to be laminar. While some pulsating Am stars have been previously found to be δ Sct stars, the vast majority of Am stars known to pulsate are presented in this paper. They will form the basis of future statistical studies of pulsation in the presence of atomic diffusion.

AB - We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating δ Sct and γ Dor stars, with low amplitudes that have been missed in previous, less extensive studies. While the amplitudes are generally low, the presence of pulsation in Am stars places a strong constraint on atmospheric convection, and may require the pulsation to be laminar. While some pulsating Am stars have been previously found to be δ Sct stars, the vast majority of Am stars known to pulsate are presented in this paper. They will form the basis of future statistical studies of pulsation in the presence of atomic diffusion.

U2 - 10.1051/0004-6361/201117230

DO - 10.1051/0004-6361/201117230

M3 - Article

SN - 0004-6361

VL - 535

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - A3

ER -

SuperWASP observations of pulsating Am stars

Abstract

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Projects

Astrophysics in St Andrews: Astrophysics in St Andrews / SUPA (Continuan of Rolling Grant - XPP089

Wide Area Search for Planets: Project support for the Wide Area Search for Planets

Cite this