Abstract
We report on analysis of 308.3 h of high-speed photometry targeting the pulsating DA white dwarf EC14012-1446. The data were acquired by the Whole Earth Telescope (WET) during XCOV28 in 2008. The Fourier transform of the complete light curve contains 19 independent frequencies distributed in 13 pulsation modes, with dominant peaks at 1,633.9, 1,887.4, and 2,504.9 μHz, as well as numerous combination frequencies. Our analysis reveals that these identified frequencies are consistent with a series of consecutive modes of spherical degree l = 1 with an average period spacing of 41 s. Building on this foundation, we calculate preliminary nonlinear fits to high signal-to-noise light curves with the goal of extracting EC14012-1446’s convective parameters τ0 and N.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Brickhill, A.J.: MNRAS 259, 519 (1992)
Montgomery, M.H., Provencal, J.L., et al.: ApJ 716, 84 (2010)
Provencal, J.L.: ApJ 751, 91 (2012)
Stello, D., et al.: ApJ 738, 28 (2011)
Stobie, R.S., et al.: MNRAS 272, L21 (1995)
Winget, D.E., et al.: ApJ 430, 839 (1994)
Acknowledgements
Space limitations force us to limit the number of individual authors who contributed to this work. These WET observations could not happen without the enthusiastic support of everyone in the network.
Author information
Authors and Affiliations
Consortia
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Provencal, J.L., The WET Team. (2013). Whole Earth Telescope Observations of the DAV EC14012-1446. In: Suárez, J., Garrido, R., Balona, L., Christensen-Dalsgaard, J. (eds) Stellar Pulsations. Astrophysics and Space Science Proceedings, vol 31. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29630-7_51
Download citation
DOI: https://doi.org/10.1007/978-3-642-29630-7_51
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-29629-1
Online ISBN: 978-3-642-29630-7
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)