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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The pulsations of PG 1351+489
Monthly Notices of the Royal Astronomical Society, Volume 415, No. 2, Year 2011
Notification
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Description
PG 1351+489 is one of the 20 DBVs - pulsating helium-atmosphere white dwarf stars - known and has the simplest power spectrum for this class of star, making it a good candidate to study cooling rates. We report accurate period determinations for the main peak at 489.33448s and two other normal modes using data from the Whole Earth Telescope (WET) observations of 1995 and 2009. In 2009, we detected a new pulsation mode and the main pulsation mode exhibited substantial change in its amplitude compared to all previous observations. We were able to estimate the star's rotation period, of 8.9h, and discuss a possible determination of the rate of period change of (2.0 ± 0.9) × 10-13ss -1, the first such estimate for a DBV. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.
Authors & Co-Authors
Redaelli, M.
Unknown Affiliation
Kepler, Souza Oliveira
Unknown Affiliation
Costa, J. E.S.
Unknown Affiliation
Winget, Don Earl
Unknown Affiliation
Handler, Gerald
Unknown Affiliation
Castanheira, Bárbara Garcia
Unknown Affiliation
Kanaan, Antonio
Unknown Affiliation
Fraga, Luciano
Unknown Affiliation
Henrique, P.
Unknown Affiliation
Giovannini, Odilon
Unknown Affiliation
Provençal, Judith L.
Unknown Affiliation
Shipman, Harry L.
Unknown Affiliation
Dalessio, James
Unknown Affiliation
Thompson, Susan E.
Unknown Affiliation
Mullally, Fergal R.
Unknown Affiliation
Brewer, M. M.
Unknown Affiliation
Childers, Daniel P.
Unknown Affiliation
Oksala, Mary E.
Unknown Affiliation
Rosen, Rachel
Unknown Affiliation
Wood, Matt A.
Unknown Affiliation
Reed, Michael D.
Unknown Affiliation
Walter, B.
Unknown Affiliation
Strickland, W.
Unknown Affiliation
Chandler, D.
Unknown Affiliation
Watson, Todd K.
Unknown Affiliation
Nather, R. Edward
Unknown Affiliation
Montgomery, Michael H.
Unknown Affiliation
Bischoff-Kim, A.
Unknown Affiliation
Hansen, Carl J.
Unknown Affiliation
Nitta, Atsuko
Unknown Affiliation
Kleinman, Scott J.
Unknown Affiliation
Claver, Charles Chuck
Unknown Affiliation
Brown, Timothy M.
Unknown Affiliation
Sullivan, Denis J.
Unknown Affiliation
Kim, Seung-lee
Unknown Affiliation
Chen, Wenping
Unknown Affiliation
Yang, M.
Unknown Affiliation
Shih, C. Y.
Unknown Affiliation
Zhang, X. B.
Unknown Affiliation
Jiang, Xiaojun
Unknown Affiliation
Fu, Jianning
Unknown Affiliation
Seetha, S.
Unknown Affiliation
Ashoka, B. N.
Unknown Affiliation
Marar, T. M.K.
Unknown Affiliation
Baliyan, Kiran Singh
Unknown Affiliation
Vats, H. O.
Unknown Affiliation
Chernyshev, A. V.
Unknown Affiliation
Ibbetson, P. A.
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Leibowitz, Elia M.
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Hemar, Shirley
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Sergeev, Aleksandr V.
Unknown Affiliation
Andreev, Maksim V.
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Janulis, Rimvydas
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Meištas, E. G.
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Moskalik, Pawel A.
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Pajdosz, G.
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Baran, Andrzej S.
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Winiarski, Maciej
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Zoła, Stanisław
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Ogłoza, W.
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Siwak, Michał
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Bognár, Zs
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Solheim, Jan Erik
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Sefako, Ramotholo R.
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Buckley, David A.H.
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O'Donoghue, Darragh E.
Unknown Affiliation
Nagel, Thorsten
Unknown Affiliation
Silvotti, Roberto
Unknown Affiliation
Bruni, Ivan
Unknown Affiliation
Fremy, J. R.
Unknown Affiliation
Vauclair, Gérard P.
Unknown Affiliation
Chevreton, Michel
Unknown Affiliation
Dolez, Noël
Unknown Affiliation
Pfeiffer, B.
Unknown Affiliation
Barstow, Martin Adrian
Unknown Affiliation
Creevey, Orlagh L.
Unknown Affiliation
Kawaler, Steven D.
Unknown Affiliation
Clemens, J. Christopher
Unknown Affiliation
Statistics
Citations: 78
Authors: 78
Affiliations: 48
Identifiers
Doi:
10.1111/j.1365-2966.2011.18743.x
ISSN:
00358711
e-ISSN:
13652966