High-frequency A-type pulsators discovered using SuperWASP

Daniel L. Holdsworth; B. Smalley; M. Gillon; K. I. Clubb; J. Southworth; P. F. L. Maxted; D. R. Anderson; S. C. C. Barros; A. Collier Cameron; L. Delrez; F. Faedi; C. A. Haswell; C. Hellier; K. Horne; E. Jehin; A. J. Norton; D. Pollacco; I. Skillen; A. M. S. Smith; R. G. West; P. J. Wheatley

doi:10.1093/mnras/stu094

High-frequency A-type pulsators discovered using SuperWASP

Daniel L. Holdsworth^*, B. Smalley, M. Gillon, K. I. Clubb, J. Southworth, P. F. L. Maxted, D. R. Anderson, S. C. C. Barros, A. Collier Cameron, L. Delrez, F. Faedi, C. A. Haswell, C. Hellier, K. Horne, E. Jehin, A. J. Norton, D. Pollacco, I. Skillen, A. M. S. Smith, R. G. WestP. J. Wheatley

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

We present the results of a survey using the WASP archive to search for high-frequency pulsations in F-, A- and B-type stars. Over 1.5 million targets have been searched for pulsations with amplitudes greater than 0.5 millimagnitude. We identify over 350 stars which pulsate with periods less than 30 min. Spectroscopic follow-up of selected targets has enabled us to confirm 10 new rapidly oscillating Ap stars, 13 pulsating Am stars and the fastest known δ Scuti star. We also observe stars which show pulsations in both the high-frequency domain and the low-frequency δ Scuti range. This work shows the power of the WASP photometric survey to find variable stars with amplitudes well below the nominal photometric precision per observation.

Original language	English
Pages (from-to)	2078-2095
Number of pages	18
Journal	Monthly Notices of the Royal Astronomical Society
Volume	439
Issue number	2
Early online date	17 Feb 2014
DOIs	https://doi.org/10.1093/mnras/stu094
Publication status	Published - 1 Apr 2014

Keywords

Asteroseismology
Techniques: photometric
Surveys
Stars: chemically peculiar
Stars: oscillations
Sstars: variables: δ Scuti
Rapidly oscillating AP
Delta-scuti
ROAP stars
Kepler observations
Atmospheric parameters
Planet-detection
Radial-velocity
Metallic-line
Sky survey
Catalog

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10.1093/mnras/stu094

Cameron_2014_MNRAS_HighFrequency
© 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society
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Holdsworth, D. L., Smalley, B., Gillon, M., Clubb, K. I., Southworth, J., Maxted, P. F. L., Anderson, D. R., Barros, S. C. C., Cameron, A. C., Delrez, L., Faedi, F., Haswell, C. A., Hellier, C., Horne, K., Jehin, E., Norton, A. J., Pollacco, D., Skillen, I., Smith, A. M. S., ... Wheatley, P. J. (2014). High-frequency A-type pulsators discovered using SuperWASP. Monthly Notices of the Royal Astronomical Society, 439(2), 2078-2095. https://doi.org/10.1093/mnras/stu094

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title = "High-frequency A-type pulsators discovered using SuperWASP",

abstract = "We present the results of a survey using the WASP archive to search for high-frequency pulsations in F-, A- and B-type stars. Over 1.5 million targets have been searched for pulsations with amplitudes greater than 0.5 millimagnitude. We identify over 350 stars which pulsate with periods less than 30 min. Spectroscopic follow-up of selected targets has enabled us to confirm 10 new rapidly oscillating Ap stars, 13 pulsating Am stars and the fastest known δ Scuti star. We also observe stars which show pulsations in both the high-frequency domain and the low-frequency δ Scuti range. This work shows the power of the WASP photometric survey to find variable stars with amplitudes well below the nominal photometric precision per observation.",

keywords = "Asteroseismology, Techniques: photometric, Surveys, Stars: chemically peculiar, Stars: oscillations, Sstars: variables: δ Scuti, Rapidly oscillating AP, Delta-scuti, ROAP stars, Kepler observations, Atmospheric parameters, Planet-detection, Radial-velocity, Metallic-line, Sky survey, Catalog",

author = "Holdsworth, {Daniel L.} and B. Smalley and M. Gillon and Clubb, {K. I.} and J. Southworth and Maxted, {P. F. L.} and Anderson, {D. R.} and Barros, {S. C. C.} and Cameron, {A. Collier} and L. Delrez and F. Faedi and Haswell, {C. A.} and C. Hellier and K. Horne and E. Jehin and Norton, {A. J.} and D. Pollacco and I. Skillen and Smith, {A. M. S.} and West, {R. G.} and Wheatley, {P. J.}",

year = "2014",

month = apr,

day = "1",

doi = "10.1093/mnras/stu094",

language = "English",

volume = "439",

pages = "2078--2095",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

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Holdsworth, DL, Smalley, B, Gillon, M, Clubb, KI, Southworth, J, Maxted, PFL, Anderson, DR, Barros, SCC, Cameron, AC, Delrez, L, Faedi, F, Haswell, CA, Hellier, C, Horne, K, Jehin, E, Norton, AJ, Pollacco, D, Skillen, I, Smith, AMS, West, RG & Wheatley, PJ 2014, 'High-frequency A-type pulsators discovered using SuperWASP', Monthly Notices of the Royal Astronomical Society, vol. 439, no. 2, pp. 2078-2095. https://doi.org/10.1093/mnras/stu094

TY - JOUR

T1 - High-frequency A-type pulsators discovered using SuperWASP

AU - Holdsworth, Daniel L.

AU - Smalley, B.

AU - Gillon, M.

AU - Clubb, K. I.

AU - Southworth, J.

AU - Maxted, P. F. L.

AU - Anderson, D. R.

AU - Barros, S. C. C.

AU - Cameron, A. Collier

AU - Delrez, L.

AU - Faedi, F.

AU - Haswell, C. A.

AU - Hellier, C.

AU - Horne, K.

AU - Jehin, E.

AU - Norton, A. J.

AU - Pollacco, D.

AU - Skillen, I.

AU - Smith, A. M. S.

AU - West, R. G.

AU - Wheatley, P. J.

PY - 2014/4/1

Y1 - 2014/4/1

N2 - We present the results of a survey using the WASP archive to search for high-frequency pulsations in F-, A- and B-type stars. Over 1.5 million targets have been searched for pulsations with amplitudes greater than 0.5 millimagnitude. We identify over 350 stars which pulsate with periods less than 30 min. Spectroscopic follow-up of selected targets has enabled us to confirm 10 new rapidly oscillating Ap stars, 13 pulsating Am stars and the fastest known δ Scuti star. We also observe stars which show pulsations in both the high-frequency domain and the low-frequency δ Scuti range. This work shows the power of the WASP photometric survey to find variable stars with amplitudes well below the nominal photometric precision per observation.

AB - We present the results of a survey using the WASP archive to search for high-frequency pulsations in F-, A- and B-type stars. Over 1.5 million targets have been searched for pulsations with amplitudes greater than 0.5 millimagnitude. We identify over 350 stars which pulsate with periods less than 30 min. Spectroscopic follow-up of selected targets has enabled us to confirm 10 new rapidly oscillating Ap stars, 13 pulsating Am stars and the fastest known δ Scuti star. We also observe stars which show pulsations in both the high-frequency domain and the low-frequency δ Scuti range. This work shows the power of the WASP photometric survey to find variable stars with amplitudes well below the nominal photometric precision per observation.

KW - Asteroseismology

KW - Techniques: photometric

KW - Surveys

KW - Stars: chemically peculiar

KW - Stars: oscillations

KW - Sstars: variables: δ Scuti

KW - Rapidly oscillating AP

KW - Delta-scuti

KW - ROAP stars

KW - Kepler observations

KW - Atmospheric parameters

KW - Planet-detection

KW - Radial-velocity

KW - Metallic-line

KW - Sky survey

KW - Catalog

UR - http://mnras.oxfordjournals.org/content/439/2/2078/suppl/DC1

U2 - 10.1093/mnras/stu094

DO - 10.1093/mnras/stu094

M3 - Article

SN - 0035-8711

VL - 439

SP - 2078

EP - 2095

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

High-frequency A-type pulsators discovered using SuperWASP

Abstract

Keywords

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Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

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

Cite this

High-frequency A-type pulsators discovered using SuperWASP

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

Astrophysics at St Andrews:2012 - 2014: Astrophysics at St Andrews: 2012 - 2014

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

Cite this