Preliminary XCOV26 results for EC14012-1446

J. L. Provencal, S. Thompson, M. Montgomery, A. Kanaan, H. L. Shipman, J. Dalessio, D. Childers, C. Clemens, R. Rosen, P. Henrique, Agnes Kim, W. Strickland, D. Chandler, B. Walter, T. K. Watson, B. Castanheira, M. Wood, S. Vennes, S. O. Kepler, M. ReedA. Nitta, S. J. Kleinman, T. Brown, S. L. Kim, D. Sullivan, Wen Ping Chen, M. Yang, Chia You Shih, X. J. Jiang, A. V. Sergeev, A. Maksim, R. Janulis, H. O. Vats, K. S. Baliyan, S. Zola, A. Baran, M. Winiarski, W. Ogloza, M. Paparo, Z. Bognar, P. Papics, D. Kilkenny, R. Sefako, D. Buckley, N. Loaring, A. Kniazev, R. Silvotti, S. Galleti, G. Handler, T. Nagel, G. Vauclair, N. Dolez, J. R. Fremy, J. Perez, J. M. Almenara, L. Fraga

Research output: Contribution to journalArticle

Abstract

EC14012-1446 is a hydrogen atmosphere (DA) white dwarf pulsator. Its rich pulsation spectrum displays a range of excited modes with complex multiplet structure, in addition to numerous combination frequencies. In April 2008, EC14012-1446 was the primary target of XCOV26. We obtained over 300 hrs of nearly continuous high speed photometry with the goal of using the nonlinear pulse shapes to empirically determine the parameters of the convection zone. The Fourier transform (FT) of the light curve contains power between 1000 to 4000 μHz, with the dominant peak at 1234 μHz. We find 13 independent frequencies distributed in 8 modes, as well as a myriad of combination frequencies. In the following, we present preliminary results and lay the groundwork for future investigation leading to light curve fitting of EC14012-1446.

Original languageEnglish (US)
Article number012061
JournalJournal of Physics: Conference Series
Volume172
DOIs
StatePublished - Jan 1 2009

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light curve
curve fitting
photometry
convection
fine structure
high speed
atmospheres
hydrogen
pulses

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Provencal, J. L., Thompson, S., Montgomery, M., Kanaan, A., Shipman, H. L., Dalessio, J., ... Fraga, L. (2009). Preliminary XCOV26 results for EC14012-1446. Journal of Physics: Conference Series, 172, [012061]. https://doi.org/10.1088/1742-6596/172/1/012061
Provencal, J. L. ; Thompson, S. ; Montgomery, M. ; Kanaan, A. ; Shipman, H. L. ; Dalessio, J. ; Childers, D. ; Clemens, C. ; Rosen, R. ; Henrique, P. ; Kim, Agnes ; Strickland, W. ; Chandler, D. ; Walter, B. ; Watson, T. K. ; Castanheira, B. ; Wood, M. ; Vennes, S. ; Kepler, S. O. ; Reed, M. ; Nitta, A. ; Kleinman, S. J. ; Brown, T. ; Kim, S. L. ; Sullivan, D. ; Chen, Wen Ping ; Yang, M. ; Shih, Chia You ; Jiang, X. J. ; Sergeev, A. V. ; Maksim, A. ; Janulis, R. ; Vats, H. O. ; Baliyan, K. S. ; Zola, S. ; Baran, A. ; Winiarski, M. ; Ogloza, W. ; Paparo, M. ; Bognar, Z. ; Papics, P. ; Kilkenny, D. ; Sefako, R. ; Buckley, D. ; Loaring, N. ; Kniazev, A. ; Silvotti, R. ; Galleti, S. ; Handler, G. ; Nagel, T. ; Vauclair, G. ; Dolez, N. ; Fremy, J. R. ; Perez, J. ; Almenara, J. M. ; Fraga, L. / Preliminary XCOV26 results for EC14012-1446. In: Journal of Physics: Conference Series. 2009 ; Vol. 172.
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abstract = "EC14012-1446 is a hydrogen atmosphere (DA) white dwarf pulsator. Its rich pulsation spectrum displays a range of excited modes with complex multiplet structure, in addition to numerous combination frequencies. In April 2008, EC14012-1446 was the primary target of XCOV26. We obtained over 300 hrs of nearly continuous high speed photometry with the goal of using the nonlinear pulse shapes to empirically determine the parameters of the convection zone. The Fourier transform (FT) of the light curve contains power between 1000 to 4000 μHz, with the dominant peak at 1234 μHz. We find 13 independent frequencies distributed in 8 modes, as well as a myriad of combination frequencies. In the following, we present preliminary results and lay the groundwork for future investigation leading to light curve fitting of EC14012-1446.",
author = "Provencal, {J. L.} and S. Thompson and M. Montgomery and A. Kanaan and Shipman, {H. L.} and J. Dalessio and D. Childers and C. Clemens and R. Rosen and P. Henrique and Agnes Kim and W. Strickland and D. Chandler and B. Walter and Watson, {T. K.} and B. Castanheira and M. Wood and S. Vennes and Kepler, {S. O.} and M. Reed and A. Nitta and Kleinman, {S. J.} and T. Brown and Kim, {S. L.} and D. Sullivan and Chen, {Wen Ping} and M. Yang and Shih, {Chia You} and Jiang, {X. J.} and Sergeev, {A. V.} and A. Maksim and R. Janulis and Vats, {H. O.} and Baliyan, {K. S.} and S. Zola and A. Baran and M. Winiarski and W. Ogloza and M. Paparo and Z. Bognar and P. Papics and D. Kilkenny and R. Sefako and D. Buckley and N. Loaring and A. Kniazev and R. Silvotti and S. Galleti and G. Handler and T. Nagel and G. Vauclair and N. Dolez and Fremy, {J. R.} and J. Perez and Almenara, {J. M.} and L. Fraga",
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Provencal, JL, Thompson, S, Montgomery, M, Kanaan, A, Shipman, HL, Dalessio, J, Childers, D, Clemens, C, Rosen, R, Henrique, P, Kim, A, Strickland, W, Chandler, D, Walter, B, Watson, TK, Castanheira, B, Wood, M, Vennes, S, Kepler, SO, Reed, M, Nitta, A, Kleinman, SJ, Brown, T, Kim, SL, Sullivan, D, Chen, WP, Yang, M, Shih, CY, Jiang, XJ, Sergeev, AV, Maksim, A, Janulis, R, Vats, HO, Baliyan, KS, Zola, S, Baran, A, Winiarski, M, Ogloza, W, Paparo, M, Bognar, Z, Papics, P, Kilkenny, D, Sefako, R, Buckley, D, Loaring, N, Kniazev, A, Silvotti, R, Galleti, S, Handler, G, Nagel, T, Vauclair, G, Dolez, N, Fremy, JR, Perez, J, Almenara, JM & Fraga, L 2009, 'Preliminary XCOV26 results for EC14012-1446', Journal of Physics: Conference Series, vol. 172, 012061. https://doi.org/10.1088/1742-6596/172/1/012061

Preliminary XCOV26 results for EC14012-1446. / Provencal, J. L.; Thompson, S.; Montgomery, M.; Kanaan, A.; Shipman, H. L.; Dalessio, J.; Childers, D.; Clemens, C.; Rosen, R.; Henrique, P.; Kim, Agnes; Strickland, W.; Chandler, D.; Walter, B.; Watson, T. K.; Castanheira, B.; Wood, M.; Vennes, S.; Kepler, S. O.; Reed, M.; Nitta, A.; Kleinman, S. J.; Brown, T.; Kim, S. L.; Sullivan, D.; Chen, Wen Ping; Yang, M.; Shih, Chia You; Jiang, X. J.; Sergeev, A. V.; Maksim, A.; Janulis, R.; Vats, H. O.; Baliyan, K. S.; Zola, S.; Baran, A.; Winiarski, M.; Ogloza, W.; Paparo, M.; Bognar, Z.; Papics, P.; Kilkenny, D.; Sefako, R.; Buckley, D.; Loaring, N.; Kniazev, A.; Silvotti, R.; Galleti, S.; Handler, G.; Nagel, T.; Vauclair, G.; Dolez, N.; Fremy, J. R.; Perez, J.; Almenara, J. M.; Fraga, L.

In: Journal of Physics: Conference Series, Vol. 172, 012061, 01.01.2009.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Preliminary XCOV26 results for EC14012-1446

AU - Provencal, J. L.

AU - Thompson, S.

AU - Montgomery, M.

AU - Kanaan, A.

AU - Shipman, H. L.

AU - Dalessio, J.

AU - Childers, D.

AU - Clemens, C.

AU - Rosen, R.

AU - Henrique, P.

AU - Kim, Agnes

AU - Strickland, W.

AU - Chandler, D.

AU - Walter, B.

AU - Watson, T. K.

AU - Castanheira, B.

AU - Wood, M.

AU - Vennes, S.

AU - Kepler, S. O.

AU - Reed, M.

AU - Nitta, A.

AU - Kleinman, S. J.

AU - Brown, T.

AU - Kim, S. L.

AU - Sullivan, D.

AU - Chen, Wen Ping

AU - Yang, M.

AU - Shih, Chia You

AU - Jiang, X. J.

AU - Sergeev, A. V.

AU - Maksim, A.

AU - Janulis, R.

AU - Vats, H. O.

AU - Baliyan, K. S.

AU - Zola, S.

AU - Baran, A.

AU - Winiarski, M.

AU - Ogloza, W.

AU - Paparo, M.

AU - Bognar, Z.

AU - Papics, P.

AU - Kilkenny, D.

AU - Sefako, R.

AU - Buckley, D.

AU - Loaring, N.

AU - Kniazev, A.

AU - Silvotti, R.

AU - Galleti, S.

AU - Handler, G.

AU - Nagel, T.

AU - Vauclair, G.

AU - Dolez, N.

AU - Fremy, J. R.

AU - Perez, J.

AU - Almenara, J. M.

AU - Fraga, L.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - EC14012-1446 is a hydrogen atmosphere (DA) white dwarf pulsator. Its rich pulsation spectrum displays a range of excited modes with complex multiplet structure, in addition to numerous combination frequencies. In April 2008, EC14012-1446 was the primary target of XCOV26. We obtained over 300 hrs of nearly continuous high speed photometry with the goal of using the nonlinear pulse shapes to empirically determine the parameters of the convection zone. The Fourier transform (FT) of the light curve contains power between 1000 to 4000 μHz, with the dominant peak at 1234 μHz. We find 13 independent frequencies distributed in 8 modes, as well as a myriad of combination frequencies. In the following, we present preliminary results and lay the groundwork for future investigation leading to light curve fitting of EC14012-1446.

AB - EC14012-1446 is a hydrogen atmosphere (DA) white dwarf pulsator. Its rich pulsation spectrum displays a range of excited modes with complex multiplet structure, in addition to numerous combination frequencies. In April 2008, EC14012-1446 was the primary target of XCOV26. We obtained over 300 hrs of nearly continuous high speed photometry with the goal of using the nonlinear pulse shapes to empirically determine the parameters of the convection zone. The Fourier transform (FT) of the light curve contains power between 1000 to 4000 μHz, with the dominant peak at 1234 μHz. We find 13 independent frequencies distributed in 8 modes, as well as a myriad of combination frequencies. In the following, we present preliminary results and lay the groundwork for future investigation leading to light curve fitting of EC14012-1446.

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UR - http://www.scopus.com/inward/citedby.url?scp=68349125206&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/172/1/012061

DO - 10.1088/1742-6596/172/1/012061

M3 - Article

AN - SCOPUS:68349125206

VL - 172

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

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Provencal JL, Thompson S, Montgomery M, Kanaan A, Shipman HL, Dalessio J et al. Preliminary XCOV26 results for EC14012-1446. Journal of Physics: Conference Series. 2009 Jan 1;172. 012061. https://doi.org/10.1088/1742-6596/172/1/012061