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104. Preface

Author

Alecian, G., primary, Lebreton, Y., additional, Richard, O., additional, and Vauclair, G., additional

Published
2013
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106. Asteroseismology of the ZZ Ceti star HS 0507+0434B★

Author

Fu, J.-N., primary, Dolez, N., additional, Vauclair, G., additional, Machado, L. Fox, additional, Kim, S.-L., additional, Li, C., additional, Chen, L., additional, Alvarez, M., additional, Su, J., additional, Charpinet, S., additional, Chevreton, M., additional, Michel, R., additional, Yang, X. H., additional, Li, Y., additional, Zhang, Y. P., additional, Molnar, L., additional, and Plachy, E., additional

Published
2012
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108. EMPIRICAL DETERMINATION OF CONVECTION PARAMETERS IN WHITE DWARFS. I. WHOLE EARTH TELESCOPE OBSERVATIONS OF EC14012-1446

Author

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

Published
2012
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109. The pulsations of PG 1351+489

Author

Redaelli, M., primary, Kepler, S. O., additional, Costa, J. E. S., additional, Winget, D. E., additional, Handler, G., additional, Castanheira, B. G., additional, Kanaan, A., additional, Fraga, L., additional, Henrique, P., additional, Giovannini, O., additional, Provencal, J. L., additional, Shipman, H. L., additional, Dalessio, J., additional, Thompson, S. E., additional, Mullally, F., additional, Brewer, M. M., additional, Childers, D., additional, Oksala, M. E., additional, Rosen, R., additional, Wood, M. A., additional, Reed, M. D., additional, Walter, B., additional, Strickland, W., additional, Chandler, D., additional, Watson, T. K., additional, Nather, R. E., additional, Montgomery, M. H., additional, Bischoff-Kim, A., additional, Hansen, C. J., additional, Nitta, A., additional, Kleinman, S. J., additional, Claver, C. F., additional, Brown, T. M., additional, Sullivan, D. J., additional, Kim, S.-L., additional, Chen, W.-P., additional, Yang, M., additional, Shih, C.-Y., additional, Zhang, X., additional, Jiang, X., additional, Fu, J. N., additional, Seetha, S., additional, Ashoka, B. N., additional, Marar, T. M. K., additional, Baliyan, K. S., additional, Vats, H. O., additional, Chernyshev, A. V., additional, Ibbetson, P., additional, Leibowitz, E., additional, Hemar, S., additional, Sergeev, A. V., additional, Andreev, M. V., additional, Janulis, R., additional, Meištas, E. G., additional, Moskalik, P., additional, Pajdosz, G., additional, Baran, A., additional, Winiarski, M., additional, Zola, S., additional, Ogloza, W., additional, Siwak, M., additional, Bognár, Zs., additional, Solheim, J.-E., additional, Sefako, R., additional, Buckley, D., additional, O'Donoghue, D., additional, Nagel, T., additional, Silvotti, R., additional, Bruni, I., additional, Fremy, J. R., additional, Vauclair, G., additional, Chevreton, M., additional, Dolez, N., additional, Pfeiffer, B., additional, Barstow, M. A., additional, Creevey, O. L., additional, Kawaler, S. D., additional, and Clemens, J. C., additional

Published
2011
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110. Accurate p-mode measurements of the G0V metal-rich CoRoT target HD 52265

Author

Ballot, J., primary, Gizon, L., additional, Samadi, R., additional, Vauclair, G., additional, Benomar, O., additional, Bruntt, H., additional, Mosser, B., additional, Stahn, T., additional, Verner, G. A., additional, Campante, T. L., additional, García, R. A., additional, Mathur, S., additional, Salabert, D., additional, Gaulme, P., additional, Régulo, C., additional, Roxburgh, I. W., additional, Appourchaux, T., additional, Baudin, F., additional, Catala, C., additional, Chaplin, W. J., additional, Deheuvels, S., additional, Michel, E., additional, Bazot, M., additional, Creevey, O., additional, Dolez, N., additional, Elsworth, Y., additional, Sato, K. H., additional, Vauclair, S., additional, Auvergne, M., additional, and Baglin, A., additional

Published
2011
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112. Whole Earth Telescope observations of the subdwarf B star KPD 1930+2752: a rich, short-period pulsator in a close binary

Author

Reed, M. D., primary, Harms, S. L., additional, Poindexter, S., additional, Zhou, A.-Y., additional, Eggen, J. R., additional, Morris, M. A., additional, Quint, A. C., additional, McDaniel, S., additional, Baran, A., additional, Dolez, N., additional, Kawaler, S. D., additional, Kurtz, D. W., additional, Moskalik, P., additional, Riddle, R., additional, Zola, S., additional, Østensen, R. H., additional, Solheim, J.-E., additional, Kepler, S. O., additional, Costa, A. F. M., additional, Provencal, J. L., additional, Mullally, F., additional, Winget, D. W., additional, Vuckovic, M., additional, Crowe, R., additional, Terry, D., additional, Avila, R., additional, Berkey, B., additional, Stewart, S., additional, Bodnarik, J., additional, Bolton, D., additional, Binder, P.-M., additional, Sekiguchi, K., additional, Sullivan, D. J., additional, Kim, S.-L., additional, Chen, W.-P., additional, Chen, C.-W., additional, Lin, H.-C., additional, Jian, X.-J., additional, Wu, H., additional, Gou, J.-P., additional, Liu, Z., additional, Leibowitz, E., additional, Lipkin, Y., additional, Akan, C., additional, Cakirli, O., additional, Janulis, R., additional, Pretorius, R., additional, Ogloza, W., additional, Stachowski, G., additional, Paparo, M., additional, Szabo, R., additional, Csubry, Z., additional, Zsuffa, D., additional, Silvotti, R., additional, Marinoni, S., additional, Bruni, I., additional, Vauclair, G., additional, Chevreton, M., additional, Matthews, J. M., additional, Cameron, C., additional, and Pablo, H., additional

Published
2011
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113. Constraining the Evolution of Zz Ceti

Author

1777676, Mukadam, Anjum S., Kepler, S. O., Nather, D. E., Kilic, M., Mullally, F., von Hippel, T., Kleinman, S. J., Nitta, A., Guzik, J. A., Bradley, P. A., Matthews, J., Sekiguchi, K., Sullivan, D. J., Sullivan, T., Shobbrook, R. R., Birch, P., Jiang, X. J., Xu, D. W., Joshi, S., Ashoka, B. N., Ibbetson, P., Leibowitz, E., Ofek, E. O., Meištas, E. G., Janulis, R., Ališauskas, R. D., Kalytis, R., Handler, G., Kilkenny, D., O'Donoghue, D., Kurtz, D. W., Müller, M., Moskalik, P., Ogloza, W., Zola, S., Krzesiński, J., Johnannessen, F., Gonzalez-Perez, J. M., Solheim, J. E., Silvotti, R., Bernabei, S., Vauclair, G., Dolez, N., Fu, J. N., Chevreton, M., Manteiga, M., Suárez, O., Ulla, A., Cunha, M. S., Metcalfe, T. S., Kanaan, A., Fraga, L., Costa, A. F. M., Giovannini, O., Fontaine, G., Bergeron, P., O'Brien, M. S., Sanwal, D., Wood, M. A., Ahrens, T. J., Silvestri, N., Klumpe, E. W., Kawaler, S. D., Riddle, R., Reed, M. D., Watson, T. K., 1777676, Mukadam, Anjum S., Kepler, S. O., Nather, D. E., Kilic, M., Mullally, F., von Hippel, T., Kleinman, S. J., Nitta, A., Guzik, J. A., Bradley, P. A., Matthews, J., Sekiguchi, K., Sullivan, D. J., Sullivan, T., Shobbrook, R. R., Birch, P., Jiang, X. J., Xu, D. W., Joshi, S., Ashoka, B. N., Ibbetson, P., Leibowitz, E., Ofek, E. O., Meištas, E. G., Janulis, R., Ališauskas, R. D., Kalytis, R., Handler, G., Kilkenny, D., O'Donoghue, D., Kurtz, D. W., Müller, M., Moskalik, P., Ogloza, W., Zola, S., Krzesiński, J., Johnannessen, F., Gonzalez-Perez, J. M., Solheim, J. E., Silvotti, R., Bernabei, S., Vauclair, G., Dolez, N., Fu, J. N., Chevreton, M., Manteiga, M., Suárez, O., Ulla, A., Cunha, M. S., Metcalfe, T. S., Kanaan, A., Fraga, L., Costa, A. F. M., Giovannini, O., Fontaine, G., Bergeron, P., O'Brien, M. S., Sanwal, D., Wood, M. A., Ahrens, T. J., Silvestri, N., Klumpe, E. W., Kawaler, S. D., Riddle, R., Reed, M. D., and Watson, T. K.

Published
2003

114. Constraining the Evolution of ZZ Ceti

Author

Mukadam, Anjum, Kepler, S O, Winget, D E, Nather, R E, Kilic, M, Mullally, F, von Hippel, Ted, Kleinman, S, Nitta, A, Guzik, J A, Bradley, P A, Matthews, J M, Sekiguchi, K, Sullivan, D J, Sullivan, T, Shobbrook, R, Birch, P V, Jiang, X, Xu, D W, Joshi, S, Ashoka, B N, Ibbetson, P, Leibowitz, E, Ofek, Eran O, Meistas, E, Janulis, R, Alisauskas, D, Kalytis, R, Handler, G, Kilkenny, D, O'Donoghue, D, Kurtz, D W, Muller, M, Moskalik, P, Ogloza, W, Zola, S, Krzesinski, J, Johannessen, F, Gonzalez-Perez, J, Solheim, Jesper, Silvotti, R, Bernabei, S, Vauclair, G, Dolez, N, Fu, J, Chevreton, M, Mantiega, M, Suarez, O, Ulla, A, Cunha, M S, Metcalfe, T S, Kanaan, A, Fraga, L, Costa, A F M, Giovannini, O, Fontaine, G, Bergeron, P, O'Brien, M S, Sanwal, D, Wood, M A, Ahrens, T J, Silvestri, Nicole, Klumpe, E W, Kawaler, S D, Riddle, R L, Reed, M D, Watson, T K, Mukadam, Anjum, Kepler, S O, Winget, D E, Nather, R E, Kilic, M, Mullally, F, von Hippel, Ted, Kleinman, S, Nitta, A, Guzik, J A, Bradley, P A, Matthews, J M, Sekiguchi, K, Sullivan, D J, Sullivan, T, Shobbrook, R, Birch, P V, Jiang, X, Xu, D W, Joshi, S, Ashoka, B N, Ibbetson, P, Leibowitz, E, Ofek, Eran O, Meistas, E, Janulis, R, Alisauskas, D, Kalytis, R, Handler, G, Kilkenny, D, O'Donoghue, D, Kurtz, D W, Muller, M, Moskalik, P, Ogloza, W, Zola, S, Krzesinski, J, Johannessen, F, Gonzalez-Perez, J, Solheim, Jesper, Silvotti, R, Bernabei, S, Vauclair, G, Dolez, N, Fu, J, Chevreton, M, Mantiega, M, Suarez, O, Ulla, A, Cunha, M S, Metcalfe, T S, Kanaan, A, Fraga, L, Costa, A F M, Giovannini, O, Fontaine, G, Bergeron, P, O'Brien, M S, Sanwal, D, Wood, M A, Ahrens, T J, Silvestri, Nicole, Klumpe, E W, Kawaler, S D, Riddle, R L, Reed, M D, and Watson, T K

Abstract

We report our analysis of the stability of pulsation periods in the DAV star (pulsating hydrogen atmosphere white dwarf) ZZ Ceti, also called R548. On the basis of observations that span 31 years, we conclude that the period 213. 13 s observed in ZZ Ceti

Published
2003

115. Amplitude and Frequency Variability of the Pulsating DB White Dwarf Stars KUV 05134+2605 and PG 1654+160 Observed with the Whole Earth Telescope

Author

Handler, G, O'Donoghue, D, Muller, M, Solheim, Jesper, Gonzalez-Perez, J, Johannessen, F, Paparo, M, Szeidl, B, Viraghalmy, G, Silvotti, R, Vauclair, G, Dolez, N, Pallier, E, Chevreton, M, Kurtz, D W, Bromage, G., Cunha, M S, Ostensen, R, Fraga, L, Kanaan, A, Amorim, A., Giovannini, O, Kepler, S O, da Costa, A, Anderson, R., Wood, M A, Silvestri, Nicole, Klumpe, E W, Carlton, R., Miller, R, McFarland, J, Grauer, A., Kawaler, S D, Riddle, R L, Reed, M D, Nather, R E, Winget, D E, Hill, J., Metcalfe, T S, Mukadam, Anjum, Kilic, M, Watson, T K, Kleinman, S, Nitta, A, Guzik, J A, Bradley, P A, Sekiguchi, K, Sullivan, D J, Sullivan, T, Shobbrook, R, Jiang, X, Birch, P V, Ashoka, B N, Seetha, S, Girish, V, Joshi, S, Dorokhova, T., Dorokhov, N., Akan, M., Meistas, E, Janulis, R, Kalytis, R, Alisauskas, D, Anguma, S., Kalebwe, P C, Moskalik, P, Ogloza, W, Stachowski, G, Pajdosz, G, Zola, S, Handler, G, O'Donoghue, D, Muller, M, Solheim, Jesper, Gonzalez-Perez, J, Johannessen, F, Paparo, M, Szeidl, B, Viraghalmy, G, Silvotti, R, Vauclair, G, Dolez, N, Pallier, E, Chevreton, M, Kurtz, D W, Bromage, G., Cunha, M S, Ostensen, R, Fraga, L, Kanaan, A, Amorim, A., Giovannini, O, Kepler, S O, da Costa, A, Anderson, R., Wood, M A, Silvestri, Nicole, Klumpe, E W, Carlton, R., Miller, R, McFarland, J, Grauer, A., Kawaler, S D, Riddle, R L, Reed, M D, Nather, R E, Winget, D E, Hill, J., Metcalfe, T S, Mukadam, Anjum, Kilic, M, Watson, T K, Kleinman, S, Nitta, A, Guzik, J A, Bradley, P A, Sekiguchi, K, Sullivan, D J, Sullivan, T, Shobbrook, R, Jiang, X, Birch, P V, Ashoka, B N, Seetha, S, Girish, V, Joshi, S, Dorokhova, T., Dorokhov, N., Akan, M., Meistas, E, Janulis, R, Kalytis, R, Alisauskas, D, Anguma, S., Kalebwe, P C, Moskalik, P, Ogloza, W, Stachowski, G, Pajdosz, G, and Zola, S

Abstract

We have acquired new time series photometry of the two pulsating DB white dwarf stars KUV 05134+2605 and PG1654+160 with the Whole Earth Telescope. Additional single-site photometry is also presented. We use all these data plus all available archival measurements to study the temporal behaviour of the pulsational amplitudes and frequencies of these stars for the first time. We demonstrate that both KUV 05134+2605 and PG 1654+160 pulsate in many modes, the amplitudes of which are variable in time; some frequency variability of PG 1654+160 is also indicated. Beating of multiple pulsation modes cannot explain our observations; the amplitude variability must therefore be intrinsic. We cannot find stable modes to be used for determinations of the evolutionary period changes of the stars. Some of the modes of PG 1654+160 appear at the same periods whenever detected. The mean spacing of these periods (≈40 s) suggests that they are probably caused by non-radial gravity-mode pulsations of spherical degree 1 = 1. If so, PG 1654+160 has a mass around 0.6 M⊙. The time-scales of the amplitude variability of both stars (down to two weeks) are consistent with theoretical predictions of resonant mode coupling, a conclusion which might however be affected by the temporal distribution of our data.

Published
2003

116. Observational limits on companions to g29-38

Author

Kleinman, S. J., Nather, R. E., Winget, D. E., Clemens, J. C., Bradley, P. A., Kanaan, A., Provencal, J. L., Claver, C. F., Watson, T. K., Yanagida, K., Dixson, J. S., Wood, M. A., Sullivan, D. J., Meištas, E., Leibowitz, E. M., Moskalik, P., Zola, S., Pajdosz, G., Krzesinski, J., Solheim, J. -E, Bruvold, A., O Donoghue, D., Katz, M., Vauclair, G., Dolez, N., Chevreton, M., Barstow, M. A., Kepler, S. O., Giovannini, O., Hansen, C. J., and Steven Kawaler

Subjects
low-mass, brown dwarfs [Stars], general [Binaries], Anãs brancas, oscillations [Stars], White dwarfs, Fotometria estelar, individual (G29-38) [Stars], Estrelas binarias, Estrelas variaveis
Abstract

Recent interest in the variable (DAV) white dwarf G29-38 has been stirred by a tentative report of a radial velocity variation that may be due to an unseen companion. Earlier evidence for a brown dwarf in the system has come from an observed infrared excess in the star's spectrum. For asteroseismological reasons, we have accumulated more than five seasons of high-speed photometric data on the star. By measuring the phase of an isolated, stable frequency in the power spectrum, we show the measured variation is not due (at least in its entirety) to an orbital companion. Because any orbital radial velocity variation must result in a systematic phase variation, the data we present can be used to place stringent limits on the types of companions the system may contain.

Published
1994

117. CoRoT opens a new era in hot B subdwarf asteroseismology

Author

Charpinet, S., primary, Green, E. M., additional, Baglin, A., additional, van Grootel, V., additional, Fontaine, G., additional, Vauclair, G., additional, Chaintreuil, S., additional, Weiss, W. W., additional, Michel, E., additional, Auvergne, M., additional, Catala, C., additional, Samadi, R., additional, and Baudin, F., additional

Published
2010
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119. The ZZ Ceti star HS 0507+0434B revisited

Author

Fu, J.-N., primary, Dolez, N., additional, Vauclair, G., additional, Machado, L. Fox, additional, Kim, S.-L., additional, Li, C., additional, Alvarez, M., additional, Su, J., additional, Chevreton, M., additional, Michel, R., additional, Yang, X. H., additional, Li, Y., additional, Zhang, Y. P., additional, Paparo, M., additional, Molnar, L., additional, Plachy, E., additional, Werner, Klaus, additional, and Rauch, T., additional

Published
2010
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120. HD 51106 and HD 50747: an ellipsoidal binary and a triple system observed with CoRoT

Author

Dolez, N., primary, Vauclair, S., additional, Michel, E., additional, Hui-Bon-Hoa, A., additional, Vauclair, G., additional, Le Contel, D., additional, Mathias, P., additional, Poretti, E., additional, Amado, P. J., additional, Rainer, M., additional, Samadi, R., additional, Baglin, A., additional, Catala, C., additional, Auvergne, M., additional, Uytterhoeven, K., additional, and Valtier, J.-C., additional

Published
2009
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121. Preliminary XCOV26 results for EC14012-1446

Author

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

Published
2009
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122. 2006 WHOLE EARTH TELESCOPE OBSERVATIONS OF GD358: A NEW LOOK AT THE PROTOTYPE DBV

Author

Provencal, J. L., primary, Montgomery, M. H., additional, Kanaan, A., additional, Shipman, H. L., additional, Childers, D., additional, Baran, A., additional, Kepler, S. O., additional, Reed, M., additional, Zhou, A., additional, Eggen, J., additional, Watson, T. K., additional, Winget, D. E., additional, Thompson, S. E., additional, Riaz, B., additional, Nitta, A., additional, Kleinman, S. J., additional, Crowe, R., additional, Slivkoff, J., additional, Sherard, P., additional, Purves, N., additional, Binder, P., additional, Knight, R., additional, Kim, S. -L., additional, Chen, Wen-Ping, additional, Yang, M., additional, Lin, H. C., additional, Lin, C. C., additional, Chen, C. W., additional, Jiang, X. J., additional, Sergeev, A. V., additional, Mkrtichian, D., additional, Andreev, M., additional, Janulis, R., additional, Siwak, M., additional, Zola, S., additional, Koziel, D., additional, Stachowski, G., additional, Paparo, M., additional, Bognar, Zs., additional, Handler, G., additional, Lorenz, D., additional, Steininger, B., additional, Beck, P., additional, Nagel, T., additional, Kusterer, D., additional, Hoffman, A., additional, Reiff, E., additional, Kowalski, R., additional, Vauclair, G., additional, Charpinet, S., additional, Chevreton, M., additional, Solheim, J. E., additional, Pakstiene, E., additional, Fraga, L., additional, and Dalessio, J., additional

Published
2009
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124. Whole Earth Telescope observations of the hot helium atmosphere pulsating white dwarf EC 20058−5234

Author

Sullivan, D. J., primary, Metcalfe, T. S., additional, O'Donoghue, D., additional, Winget, D. E., additional, Kilkenny, D., additional, van Wyk, F., additional, Kanaan, A., additional, Kepler, S. O., additional, Nitta, A., additional, Kawaler, S. D., additional, Montgomery, M. H., additional, Nather, R. E., additional, O'Brien, M. S., additional, Bischoff-Kim, A., additional, Wood, M., additional, Jiang, X. J., additional, Leibowitz, E. M., additional, Ibbetson, P., additional, Zola, S., additional, Krzesinski, J., additional, Pajdosz, G., additional, Vauclair, G., additional, Dolez, N., additional, and Chevreton, M., additional

Published
2008
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127. The pulsation modes of the pre-white dwarf PG 1159-035

Author

Costa, J. E. S., primary, Kepler, S. O., additional, Winget, D. E., additional, O'Brien, M. S., additional, Kawaler, S. D., additional, Costa, A. F. M., additional, Giovannini, O., additional, Kanaan, A., additional, Mukadam, A. S., additional, Mullally, F., additional, Nitta, A., additional, Provençal, J. L., additional, Shipman, H., additional, Wood, M. A., additional, Ahrens, T. J., additional, Grauer, A., additional, Kilic, M., additional, Bradley, P. A., additional, Sekiguchi, K., additional, Crowe, R., additional, Jiang, X. J., additional, Sullivan, D., additional, Sullivan, T., additional, Rosen, R., additional, Clemens, J. C., additional, Janulis, R., additional, O'Donoghue, D., additional, Ogloza, W., additional, Baran, A., additional, Silvotti, R., additional, Marinoni, S., additional, Vauclair, G., additional, Dolez, N., additional, Chevreton, M., additional, Dreizler, S., additional, Schuh, S., additional, Deetjen, J., additional, Nagel, T., additional, Solheim, J.-E., additional, Gonzalez Perez, J. M., additional, Ulla, A., additional, Barstow, M., additional, Burleigh, M., additional, Good, S., additional, Metcalfe, T. S., additional, Kim, S.-L., additional, Lee, H., additional, Sergeev, A., additional, Akan, M. C., additional, Çakırlı, Ö., additional, Paparo, M., additional, Viraghalmy, G., additional, Ashoka, B. N., additional, Handler, G., additional, Hürkal, Ö., additional, Johannessen, F., additional, Kleinman, S. J., additional, Kalytis, R., additional, Krzesinski, J., additional, Klumpe, E., additional, Larrison, J., additional, Lawrence, T., additional, Meištas, E., additional, Martinez, P., additional, Nather, R. E., additional, Fu, J.-N., additional, Pakštienė, E., additional, Romero-Colmenero, E., additional, Riddle, R., additional, Seetha, S., additional, Silvestri, N. M., additional, Vučković, M., additional, Warner, B., additional, Zola, S., additional, Althaus, L. G., additional, Córsico, A. H., additional, and Montgomery, M. H., additional

Published
2007
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131. Asteroseismology of the PG 1159 star PG 0122+200

Author

Fu, J.-N., primary, Vauclair, G., additional, Solheim, J.-E., additional, Chevreton, M., additional, Dolez, N., additional, O'Brien, M. S., additional, Kim, S.-L., additional, Park, B.-G., additional, Handler, G., additional, Medupe, R., additional, Wood, M., additional, Gonzalez Perez, J., additional, Hashimoto, O., additional, Kinugasa, K., additional, Taguchi, H., additional, Kambe, E., additional, Provencal, J., additional, Dreizler, S., additional, Schuh, S., additional, Leibowitz, E., additional, Lipkin, Y., additional, Zhang, X.-B., additional, Paparo, M., additional, Szeidl, B., additional, Virághalmy, G., additional, and Zsuffa, D., additional

Published
2007
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132. Whole Earth Telescope Observations of the Pulsating Subdwarf B Star PG 0014+067

Author

Vučković, M., primary, Kawaler, S. D., additional, O’Toole, S., additional, Csubry, Z., additional, Baran, A., additional, Zola, S., additional, Moskalik, P., additional, Klumpe, E. W., additional, Riddle, R., additional, O’Brien, M. S., additional, Mullally, F., additional, Wood, M. A., additional, Wilkat, V., additional, Zhou, A.‐Y., additional, Reed, M. D., additional, Terndrup, D. M., additional, Sullivan, D. J., additional, Kim, S.‐L., additional, Chen, W. P., additional, Chen, C.‐W., additional, Hsiao, W.‐S., additional, Sanchawala, K., additional, Lee, H.‐T., additional, Jiang, X. J., additional, Janulis, R., additional, Siwak, M., additional, Ogloza, W., additional, Paparo, M., additional, Bognar, Zs., additional, Sodor, A., additional, Handler, G., additional, Lorenz, D., additional, Steininger, B., additional, Silvotti, R., additional, Vauclair, G., additional, Oreiro, R., additional, Ostensen, R., additional, Bronowska, A., additional, Castanheira, B. G., additional, Kepler, S. O., additional, Fraga, L., additional, Shipman, H. L., additional, Provencal, J. L., additional, and Childers, D., additional

Published
2006
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135. Whole Earth telescope observations of the ZZ Ceti star HL Tau 76

Author

Dolez, N., primary, Vauclair, G., additional, Kleinman, S. J., additional, Chevreton, M., additional, Fu, J. N., additional, Solheim, J.-E., additional, González Perez, J. M., additional, Ulla, A., additional, Fraga, L., additional, Kanaan, A., additional, Reed, M., additional, Kawaler, S., additional, O'Brien, M. S., additional, Metcalfe, T. S., additional, Nather, R. E., additional, Sanwal, D., additional, Klumpe, E. W., additional, Mukadam, A., additional, Wood, M. A., additional, Ahrens, T. J., additional, Silvestri, N., additional, Sullivan, D., additional, Sullivan, T., additional, Jiang, X. J., additional, Xu, D. W., additional, Ashoka, B. N., additional, Leibowitz, E., additional, Ibbetson, P., additional, Ofek, E., additional, Kilkenny, D., additional, Meištas, E. G., additional, Alisauskas, D., additional, Janulis, R., additional, Kalytis, R., additional, Moskalik, P., additional, Zola, S., additional, Krzesinski, J., additional, Ogloza, W., additional, Handler, G., additional, Silvotti, R., additional, and Bernabei, S., additional

Published
2006
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136. DQ Herculis in Profile: Whole Earth Telescope Observations and Smoothed Particle Hydrodynamics Simulations of an Edge‐on Cataclysmic Variable System

Author

Wood, M. A., primary, Robertson, J. R., additional, Simpson, J. C., additional, Kawaler, S. D., additional, O’Brien, M. S., additional, Nather, R. E., additional, Winget, D. E., additional, Montgomery, M. H., additional, Metcalfe, T. S., additional, Jiang, X. J., additional, Leibowitz, E. M., additional, Ibbetson, P., additional, O’Donoghue, D., additional, Zola, S., additional, Krzesinski, J., additional, Pajdosz, G., additional, Vauclair, G., additional, Dolez, N., additional, Chevreton, M., additional, Sullivan, D. J., additional, Kanaan, A., additional, and Nitta, A., additional

Published
2005
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137. Pushing the ground-based limit: 14-μmag photometric precision with the definitive Whole Earth Telescope asteroseismic data set for the rapidly oscillating Ap star HR 1217

Author

Kurtz, D. W., primary, Cameron, C., additional, Cunha, M. S., additional, Dolez, N., additional, Vauclair, G., additional, Pallier, E., additional, Ulla, A., additional, Kepler, S. O., additional, da Costa, A., additional, Kanaan, A., additional, Fraga, L., additional, Giovannini, O., additional, Wood, M. A., additional, Silvestri, N., additional, Kawaler, S. D., additional, Riddle, R. L., additional, Reed, M. D., additional, Watson, T. K., additional, Metcalfe, T. S., additional, Mukadam, A., additional, Nather, R. E., additional, Winget, D. E., additional, Nitta, A., additional, Kleinman, S. J., additional, Guzik, J. A., additional, Bradley, P. A., additional, Matthews, J. M., additional, Sekiguchi, K., additional, Sullivan, D. J., additional, Sullivan, T., additional, Shobbrook, R., additional, Jiang, X., additional, Birch, P. V., additional, Ashoka, B. N., additional, Seetha, S., additional, Girish, V., additional, Joshi, S., additional, Moskalik, P., additional, Zola, S., additional, O'Donoghue, D., additional, Handler, G., additional, Mueller, M., additional, Perez, J. M. Gonzalez, additional, Solheim, J.-E., additional, Johannessen, F., additional, and Bigot, L., additional

Published
2005
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139. Whole Earth Telescope observations of BPM 37093: A seismological test of crystallization theory in white dwarfs

Author

Kanaan, A., primary, Nitta, A., additional, Winget, D. E., additional, Kepler, S. O., additional, Montgomery, M. H., additional, Metcalfe, T. S., additional, Oliveira, H., additional, Fraga, L., additional, da Costa, A. F. M., additional, Costa, J. E. S., additional, Castanheira, B. G., additional, Giovannini, O., additional, Nather, R. E., additional, Mukadam, A., additional, Kawaler, S. D., additional, O'Brien, M. S., additional, Reed, M. D., additional, Kleinman, S. J., additional, Provencal, J. L., additional, Watson, T. K., additional, Kilkenny, D., additional, Sullivan, D. J., additional, Sullivan, T., additional, Shobbrook, B., additional, Jiang, X. J., additional, Ashoka, B. N., additional, Seetha, S., additional, Leibowitz, E., additional, Ibbetson, P., additional, Mendelson, H., additional, Meištas, E. G., additional, Kalytis, R., additional, Ališauskas, D., additional, O'Donoghue, D., additional, Buckley, D., additional, Martinez, P., additional, van Wyk, F., additional, Stobie, R., additional, Marang, F., additional, van Zyl, L., additional, Ogloza, W., additional, Krzesinski, J., additional, Zola, S., additional, Moskalik, P., additional, Breger, M., additional, Stankov, A., additional, Silvotti, R., additional, Piccioni, A., additional, Vauclair, G., additional, Dolez, N., additional, Chevreton, M., additional, Deetjen, J., additional, Dreizler, S., additional, Schuh, S., additional, Gonzalez Perez, J. M., additional, Østensen, R., additional, Ulla, A., additional, Manteiga, M., additional, Suarez, O., additional, Burleigh, M. R., additional, and Barstow, M. A., additional

Published
2005
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141. Whole Earth Telescope observations of the pulsating hot white dwarf PG 1707+427

Author

Kawaler, S. D., primary, Potter, E. M., additional, Vučković, M., additional, Dind, Z. E., additional, O'Toole, S., additional, Clemens, J. C., additional, O'Brien, M. S., additional, Grauer, A. D., additional, Nather, R. E., additional, Moskalik, P. A., additional, Claver, C. F., additional, Fontaine, G., additional, Wesemael, F., additional, Bergeron, P., additional, Vauclair, G., additional, Dolez, N., additional, Chevreton, M., additional, Kleinman, S. J., additional, Watson, T. K., additional, Barstow, M. A., additional, Sansom, A. E., additional, Winget, D. E., additional, Kepler, S. O., additional, Kanaan, A., additional, Bradley, P. A., additional, Dixson, J., additional, Provencal, J., additional, and Bedding, T. R., additional

Published
2004
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142. Observations of the pulsating subdwarf B star Feige 48: Constraints on evolution and companions

Author

Reed, M. D., primary, Kawaler, S. D., additional, Zola, S., additional, Jiang, X. J., additional, Dreizler, S., additional, Schuh, S. L., additional, Deetjen, J. L., additional, Kalytis, R., additional, Meištas, E., additional, Janulis, R., additional, Ališauskas, D., additional, Krzesiński, J., additional, Vuckovic, M., additional, Moskalik, P., additional, Ogłoza, W., additional, Baran, A., additional, Stachowski, G., additional, Kurtz, D. W., additional, González Pérez, J. M., additional, Mukadam, A., additional, Watson, T. K., additional, Koen, C., additional, Bradley, P. A., additional, Cunha, M. S., additional, Kilic, M., additional, Klumpe, E. W., additional, Carlton, R. F., additional, Handler, G., additional, Kilkenny, D., additional, Riddle, R., additional, Dolez, N., additional, Vauclair, G., additional, Chevreton, M., additional, Wood, M. A., additional, Grauer, A., additional, Bromage, G., additional, Solheim, J. E., additional, Østensen, R., additional, Ulla, A., additional, Burleigh, M., additional, Good, S., additional, Hürkal, Ö., additional, Anderson, R., additional, and Pakstiene, E., additional

Published
2004
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143. Observations of the Pulsating White Dwarf G 185–32

Author

Castanheira, B. G., primary, Kepler, S. O., additional, Moskalik, P., additional, Zoła, S., additional, Pajdosz, G., additional, Krzesiński, J., additional, O'Donoghue, D., additional, Katz, M., additional, Buckley, D., additional, Vauclair, G., additional, Dolez, N., additional, Chevreton, M., additional, Barstow, M. A., additional, Kanaan, A., additional, Giovannini, O., additional, Provencal, J., additional, Kawaler, S. D., additional, Clemens, J. C., additional, Nather, R. E., additional, Winget, D. E., additional, Watson, T. K., additional, Yanagida, K., additional, Dixson, J. S., additional, Hansen, C. J., additional, Bradley, P. A., additional, Wood, M. A., additional, Sullivan, D. J., additional, Kleinman, S. J., additional, Meistas, E., additional, Solheim, J.-E., additional, Bruvold, A., additional, Leibowitz, E., additional, Mazeh, T., additional, Koester, D., additional, and Montgomery, M. H., additional

Published
2003
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144. A Whole Earth Telescope campaign on the pulsating subdwarf B binary system PG 1336−018 (NY Vir)

Author

Kilkenny, D., primary, Reed, M. D., additional, O'Donoghue, D., additional, Kawaler, S. D., additional, Mukadam, A., additional, Kleinman, S. J., additional, Nitta, A., additional, Metcalfe, T. S., additional, Provencal, J. L., additional, Watson, T. K., additional, Sullivan, D. J., additional, Sullivan, T., additional, Shobbrook, R., additional, Jiang, X. J., additional, Joshi, S., additional, Ashoka, B. N., additional, Seetha, S., additional, Leibowitz, E., additional, Ibbetson, P., additional, Mendelson, H., additional, Meištas, E., additional, Kalytis, R., additional, Ališauskas, D., additional, Martinez, P., additional, van Wyk, F., additional, Stobie, R. S., additional, Marang, F., additional, Zola, S., additional, Krzesinski, J., additional, Ogłoza, W., additional, Moskalik, P., additional, Silvotti, R., additional, Piccioni, A., additional, Vauclair, G., additional, Dolez, N., additional, Chevreton, M., additional, Dreizler, S., additional, Schuh, S. L., additional, Deetjen, J. L., additional, Solheim, J.-E., additional, Gonzalez Perez, J. M., additional, Ulla, A., additional, Østensen, R., additional, Manteiga, M., additional, Suarez, O., additional, Burleigh, M., additional, Kepler, S. O., additional, Kanaan, A., additional, and Giovannini, O., additional

Published
2003
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145. Constraining the Evolution of ZZ Ceti

Author

Mukadam, Anjum S., primary, Kepler, S. O., additional, Winget, D. E., additional, Nather, R. E., additional, Kilic, M., additional, Mullally, F., additional, von Hippel, T., additional, Kleinman, S. J., additional, Nitta, A., additional, Guzik, J. A., additional, Bradley, P. A., additional, Matthews, J., additional, Sekiguchi, K., additional, Sullivan, D. J., additional, Sullivan, T., additional, Shobbrook, R. R., additional, Birch, P., additional, Jiang, X. J., additional, Xu, D. W., additional, Joshi, S., additional, Ashoka, B. N., additional, Ibbetson, P., additional, Leibowitz, E., additional, Ofek, E. O., additional, Meištas, E. G., additional, Janulis, R., additional, Ališauskas, D., additional, Kalytis, R., additional, Handler, G., additional, Kilkenny, D., additional, O’Donoghue, D., additional, Kurtz, D. W., additional, Muller, M., additional, Moskalik, P., additional, Ogłoza, W., additional, Zoła, S., additional, Krzesiński, J., additional, Johannessen, F., additional, Gonzalez‐Perez, J. M., additional, Solheim, J.‐E., additional, Silvotti, R., additional, Bernabei, S., additional, Vauclair, G., additional, Dolez, N., additional, Fu, J. N., additional, Chevreton, M., additional, Manteiga, M., additional, Suarez, O., additional, Ulla, A., additional, Cunha, M. S., additional, Metcalfe, T. S., additional, Kanaan, A., additional, Fraga, L., additional, Costa, A. F. M., additional, Giovannini, O., additional, Fontaine, G., additional, Bergeron, P., additional, O’Brien, M. S., additional, Sanwal, D., additional, Wood, M. A., additional, Ahrens, T. J., additional, Silvestri, N., additional, Klumpe, E. W., additional, Kawaler, S. D., additional, Riddle, R., additional, Reed, M. D., additional, and Watson, T. K., additional

Published
2003
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146. Amplitude and frequency variability of the pulsating DB white dwarf stars KUV 05134+2605 and PG 1654+160 observed with the Whole Earth Telescope

Author

Handler, G., primary, O'Donoghue, D., additional, Muller, M., additional, Solheim, J.- E., additional, Gonzalez-Perez, J. M., additional, Johannessen, F., additional, Paparo, M., additional, Szeidl, B., additional, Viraghalmy, G., additional, Silvotti, R., additional, Vauclair, G., additional, Dolez, N., additional, Pallier, E., additional, Chevreton, M., additional, Kurtz, D. W., additional, Bromage, G. E., additional, Cunha, M. S., additional, Ostensen, R., additional, Fraga, L., additional, Kanaan, A., additional, Amorim, A., additional, Giovannini, O., additional, Kepler, S. O., additional, Da Costa, A. F. M., additional, Anderson, R. F., additional, Wood, M. A., additional, Silvestri, N., additional, Klumpe, E. W., additional, Carlton, R. F., additional, Miller, R. H., additional, McFarland, J. P., additional, Grauer, A. D., additional, Kawaler, S. D., additional, Riddle, R. L., additional, Reed, M. D., additional, Nather, R. E., additional, Winget, D. E., additional, Hill, J. A., additional, Metcalfe, T. S., additional, Mukadam, A. S., additional, Kilic, M., additional, Watson, T. K., additional, Kleinman, S. J., additional, Nitta, A., additional, Guzik, J. A., additional, Bradley, P. A., additional, Sekiguchi, K., additional, Sullivan, D. J., additional, Sullivan, T., additional, Shobbrook, R. R., additional, Jiang, X., additional, Birch, P. V., additional, Ashoka, B. N., additional, Seetha, S., additional, Girish, V., additional, Joshi, S., additional, Dorokhova, T. N., additional, Dorokhov, N. I., additional, Akan, M. C., additional, Meistas, E. G., additional, Janulis, R., additional, Kalytis, R., additional, Alisauskas, D., additional, Anguma, S. K., additional, Kalebwe, P. C., additional, Moskalik, P., additional, Ogloza, W., additional, Stachowski, G., additional, Pajdosz, G., additional, and Zola, S., additional

Published
2003
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147. The everchanging pulsating white dwarf GD358

Author

Kepler, S. O., primary, Nather, R. E., additional, Winget, D. E., additional, Nitta, A., additional, Kleinman, S. J., additional, Metcalfe, T., additional, Sekiguchi, K., additional, Xiaojun, Jiang, additional, Sullivan, D., additional, Sullivan, T., additional, Janulis, R., additional, Meistas, E., additional, Kalytis, R., additional, Krzesinski, J., additional, Ogłoza, W., additional, Zola, S., additional, O'Donoghue, D., additional, Romero-Colmenero, E., additional, Martinez, P., additional, Dreizler, S., additional, Deetjen, J., additional, Nagel, T., additional, Schuh, S. L., additional, Vauclair, G., additional, Ning, Fu Jian, additional, Chevreton, M., additional, Solheim, J.-E., additional, Gonzalez Perez, J. M., additional, Johannessen, F., additional, Kanaan, A., additional, Costa, J. E., additional, Murillo Costa, A. F., additional, Wood, M. A., additional, Silvestri, N., additional, Ahrens, T. J., additional, Jones, A. K., additional, Collins, A. E., additional, Boyer, M., additional, Shaw, J. S., additional, Mukadam, A., additional, Klumpe, E. W., additional, Larrison, J., additional, Kawaler, S., additional, Riddle, R., additional, Ulla, A., additional, and Bradley, P., additional

Published
2003
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148. Wet Observations of the DAV G185–32

Author

Castanheira, B. G., primary, Kepler, S.O., additional, Moskalik, P., additional, Kleinman, S. J., additional, Sansom, A.E., additional, Solheim, J.-E., additional, Belmonte, J.A., additional, Kawaler, S.D., additional, Kanaan, A., additional, Winget, D.E., additional, Nather, R.E., additional, Watson, T.K., additional, Clemens, J. C., additional, Provencal, J., additional, Grauer, A.D., additional, Bradley, P.A., additional, Wood, M.A., additional, Achilleos, N., additional, Vauclair, G., additional, Pfeiffer, B., additional, Chevreton, M., additional, Dolez, N., additional, Serre, B., additional, Yang, J.S., additional, Fu, J.N., additional, Marar, T. M. K., additional, Ashoka, B.N., additional, Meištas, E.G., additional, Chernyshev, A. V., additional, Mazeh, T., additional, Leibowitz, E., additional, Krzesiński, J., additional, Pajdosz, G., additional, Zoła, S., additional, and Costa, J. E. S., additional

Published
2003
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149. Constraining the Evolution of ZZ Ceti

Author

Mukadam, A. S., primary, Kepler, S. O., additional, Winget, D. E., additional, Nather, R. E., additional, Kilic, M., additional, Mullally, F., additional, Hippel, T. von, additional, Kleinman, S. J., additional, Nitta, A., additional, Guzik, J. A., additional, Bradley, P. A., additional, Matthews, J., additional, Sekiguchi, K., additional, Sullivan, D. J., additional, Shobbrook, R. R., additional, Birch, P., additional, Jiang, X. J., additional, Xu, D. W., additional, Joshi, S., additional, Ashoka, B.N., additional, Ibbetson, P., additional, Leibowitz, E., additional, Ofek, E. O., additional, Meištas, E. G., additional, Janulis, R., additional, Ališauskas, D., additional, Kalytis, R., additional, Handler, G., additional, Kilkenny, D., additional, O’Donoghue, D., additional, Kurtz, D. W., additional, Müller, M., additional, Moskalik, P., additional, Ogłoza, W., additional, Zoła, S., additional, Krzesiński, J., additional, Johannessen, F., additional, Gonzalez-Perez, J. M., additional, Solheim, J-E., additional, Silvotti, R., additional, Bernabei, S., additional, Vauclair, G., additional, Dolez, N., additional, Fu, J. N., additional, Chevreton, M., additional, Manteiga, M., additional, Súarez, O., additional, Ulla, A., additional, Cunha, M. S., additional, Metcalfe, T. S., additional, Kanaan, A., additional, Fraga, L., additional, Costa, A. F. M., additional, Giovannini, O., additional, Fontaine, G., additional, Bergeron, P., additional, O’Brien, M. S., additional, Sanwal, D., additional, Wood, M. A., additional, Ahrens, T. J., additional, Silvestri, N., additional, Klumpe, E. W., additional, Kawaler, S. D., additional, Riddle, R., additional, Reed, M. D., additional, and Watson, T. K., additional

Published
2003
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150. Understanding the Cool DA White Dwarf, G29-38

Author

Kleinman, S. J., Nather, R. E., Winget, D. E., Clemens, J. C., Bradley, P. A., Kanaan, A., Provencal, J. L., Claver, C. F., Watson, T. K., Yanagida, K., Nitta, A., Dixson, J. S., Wood, M. A., Grauer, A. D., Hine, B. P., Fontaine, G., Liebert, James, Sullivan, D. J., Wickramasinghe, D. T., Marar, N. Achilleos. T. M. K., Seetha, S., Ashoka, B. N., Meistas, E., Leibowitz, E. M., Moskalik, P., Krzesinski, J., Solheim, J. -E., Bruvold, A., Kurtz, D. W., Warner, B., Martinez, Peter, Vauclair, G., Dolez, N., Chevreton, M., Barstow, M. A., Kepler, S. O., Giovannini, O., Augusteijn, T., Hansen, C. J., Kawaler, S. D., Kleinman, S. J., Nather, R. E., Winget, D. E., Clemens, J. C., Bradley, P. A., Kanaan, A., Provencal, J. L., Claver, C. F., Watson, T. K., Yanagida, K., Nitta, A., Dixson, J. S., Wood, M. A., Grauer, A. D., Hine, B. P., Fontaine, G., Liebert, James, Sullivan, D. J., Wickramasinghe, D. T., Marar, N. Achilleos. T. M. K., Seetha, S., Ashoka, B. N., Meistas, E., Leibowitz, E. M., Moskalik, P., Krzesinski, J., Solheim, J. -E., Bruvold, A., Kurtz, D. W., Warner, B., Martinez, Peter, Vauclair, G., Dolez, N., Chevreton, M., Barstow, M. A., Kepler, S. O., Giovannini, O., Augusteijn, T., Hansen, C. J., and Kawaler, S. D.

Abstract

The white dwarfs are promising laboratories for the study of cosmochronology and stellar evolution. Through observations of the pulsating white dwarfs, we can measure their internal structures and compositions, critical to understanding post main sequence evolution, along with their cooling rates, allowing us to calibrate their ages directly. The most important set of white dwarf variables to measure are the oldest of the pulsators, the cool DAVs, which have not previously been explored through asteroseismology due to their complexity and instability. Through a time-series photometry data set spanning ten years, we explore the pulsation spectrum of the cool DAV, G29-38 and find an underlying structure of 19 (not including multiplet components) normal-mode, probably l=1 pulsations amidst an abundance of time variability and linear combination modes. Modelling results are incomplete, but we suggest possible starting directions and discuss probable values for the stellar mass and hydrogen layer size. For the first time, we have made sense out of the complicated power spectra of a large-amplitude DA pulsator. We have shown its seemingly erratic set of observed frequencies can be understood in terms of a recurring set of normal-mode pulsations and their linear combinations. With this result, we have opened the interior secrets of the DAVs to future asteroseismological modelling, thereby joining the rest of the known white dwarf pulsators., Comment: 29 pages including 5 figures To appear in ApJ 1 Mar 98

Published
1997
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