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The Whole Earth Telescope: An International Adventure in Asteroseismology

Published online by Cambridge University Press:  12 April 2016

Steven D. Kawaler
Steven D. Kawaler*
Affiliation:
Department of Physics and Astronomy, Iowa State University, Ames, IA 50014USA

Abstract

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Today, we are beginning to probe the interior of stars through the new science of stellar seismology. Certain stars, ranging from our own Sun to white dwarfs, undergo natural vibrations that can be detected with sensitive time-series photometry and/or spectroscopy. Since the signal we seek is an unbroken time-series to allow determination of the vibration frequencies, data from a single-site is usually incapable of uniquely identifying the pulsation modes, no matter how large the telescope being used. In many cases, the observational goals can be achieved using small-ish telescopes in well-coordinated global networks. Here, I briefly describe the work of one such international network of observatories and scientists known as the Whole Earth Telescope (WET). With the WET, we have sounded out the interiors of a large number of nonradially pulsating stars. Over the past 14 years, WET has observed dozens of stars in 20 separate observing campaigns. Our team has wide span of interests, and has observed several other classes of objects such as delta Scuti stars, CV stars, pulsating sdB stars, and rapidly oscillating Ap stars.

Type
I. Telescope Arrays and Networking
Information
International Astronomical Union Colloquium , Volume 183: Small-Telescope Astronomy on Global Scales , 2001 , pp. 3 - 12
Copyright
Copyright © Astronomical Society of the Pacific 2001

References

Bradley, P.A. & Winget, D.E. 1994, ApJ, 430, 850 Google Scholar
Clemens, J.C. 1994, Ph.D. dissertation, University of Texas Google Scholar
Costa, J.E.S., Kepler, S.O., & Winget, D.E. 1999, ApJ, 522, 973 Google Scholar
Dehner, B.T. & Kawaler, S.D. 1995, ApJ, 445, L141 CrossRefGoogle Scholar
Dreizler, S. & Heber, U. 1998, å, 334, 618 Google Scholar
Handler, G. et al. (the WET collaboration) 1996, å, 307, 329 Google Scholar
Kawaler, S.D. 1986, Ph. D. dissertation, University of Texas Google Scholar
Kawaler, S.D. & Bradley, P.A. 1994, ApJ, 427, 415 Google Scholar
Kawaler, S.D. et al. (The WET Collaboration) 1995, ApJ, 450, 350 Google Scholar
Kawaler, S.D. & Dahlstrom, M. 2000, American Scientist, 88, 498 Google Scholar
Kleinman, S.J., Nather, , & T., Phillips, 1996, PASP, 108, 356 Google Scholar
Kleinman, S.J. 1995, Ph.D. dissertation, University of Texas at Austin Google Scholar
Kepler, S.O., Robinson, E.L., Koester, D., Clemens, J.C., Nather, R.E., & Jiang, X.J. 2000a, ApJ, 539, 379 Google Scholar
Kepler, S.O., Mukadam, A., Winget, D.E., Nather, R.E., Metcalfe, T.S., Reed, M.D., Kawaler, S.D., & Bradley, P.A. 2000b, ApJ, 543, 185 Google Scholar
Meistas, E. & Solheim, J.-E. 1995, The Third WET Workshop Proceedings, Baltic Astron., 4, 104 Google Scholar
Meistas, E. & Moskalik, P. 1998, The Fourth WET Workshop Proceedings, Baltic Astron., 7, 1 Google Scholar
Meistas, E. & Vauclair, G. 2000, The Fifth WET Workshop Proceedings, Baltic Astron., 9, 1 Google Scholar
Metcalfe, T.S., Nather, R.E., & Winget, D.E. 2000, ApJ, 545, 974 Google Scholar
Montgomery, M.H. Winget, D.E. 1999, ApJ, 526, 976 Google Scholar
Moskalik, P. et al. (the WET Collaboration) 2001, in preparationGoogle Scholar
Nather, R.E., Winget, D.E., Clemens, J.C., Hansen, C.J., & Hine, B.P. 1990, ApJ, 361, 309 Google Scholar
Nitta, A. 2000, Ph.D. dissertation, University of Texas at Austin Google Scholar
O’Brien, M.S. & Kawaler, S.D. 2000, ApJ, 539, 372 Google Scholar
Provencal, J. et al. (the WET Collaboration) 1997, ApJ, 480, 383 Google Scholar
Reed, M.D., Kawaler, S.D., & O’Brien, M.S. 2000, ApJ, 545, 429 Google Scholar
Solheim, J.-E. et al. (the WET Collaboration) 1998, å, 332, 939 Google Scholar
Vuille, F. et al. (the WET Collaboration) 2000, MNRAS, 314, 689 Google Scholar
Winget, D.E. et al. (the WET Collaboration) 1991, ApJ, 378, 326 Google Scholar
Winget, D.E. et al. (the WET Collaboration) 1994, ApJ, 430, 839 Google Scholar