Zobrazeno 1 - 10 of 190 pro vyhledávání: '"J.‐E. Solheim"'
1
Akademický článek
THE AM CVN SYSTEMS – THE FINAL STAGE OF BINARY WHITE DWARF EVOLUTION
Autor: J. -E. Solheim, M. R. Nasser
Publikováno v: Odessa Astronomical Publications, Vol 14, Iss 0, Pp 98-105 (2017)
The last decade has shown a surge in research on the Interacting Binary White Dwarf s (IB-WDs), or Helium CVs, also called AM CVn systems. We have witnessed long photometric campaigns, time resolved spectroscopy, UV and X-ray observations, and modell
Externí odkaz: https://doaj.org/article/c557ec1f9e034ac0ae962a62afdff749
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2
Akademický článek
ABOUT 21st RUN OF WET: PG 1336-018
Autor: T. N. Dorokhova, N. I. Dorokhov, J. -E. Solheim, J. M. Gonzalez Perez
Publikováno v: Odessa Astronomical Publications, Vol 14, Iss 0, Pp 129-133 (2017)
We brie communicate about 21st run of the Whole Earth Telescope (WET) in April 2001, where the eclipsing short period binary sdB system PG 1336-018 was the primary target.
Externí odkaz: https://doaj.org/article/6015e99d611f4bdf937329910b07bab9
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3
Akademický článek
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4
Akademický článek
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5
Signals from the planets, via the Sun to the Earth
Autor: J.-E. Solheim
Publikováno v: Pattern Recognition in Physics. 1:177-184
The best method for identification of planetary forcing of the Earth's climate is to investigate pe- riodic variations in climate time series. Some natural frequencies in the Earth climate system seem to be synchronized to planetary cycles, and ampli
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e25e6d78fc46226f1017d9294118e959
https://doi.org/10.5194/prp-1-177-2013
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6
The sunspot cycle length – modulated by planets?
Autor: J.-E. Solheim
Publikováno v: Pattern Recognition in Physics. 1:159-164
The Schwabe frequency band of the sunspot record since 1700 has an average period of 11.06 yr and contains four major cycles, with periods of 9.97, 10.66, 11.01 and 11.83 yr. Analysis of the O-C residuals of the timing of solar cycle minima reveals t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cfef07252b34668712359f3fe5f0d060
https://doi.org/10.5194/prp-1-159-2013
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8
Identifying natural contributions to late Holocene climate change
Autor: J.-E. Solheim, Kjell Stordahl, Ole Humlum
Publikováno v: Global and Planetary Change. 79:145-156
article i nfo Analytic climate models have provided the means to predict potential impacts on future climate by anthro- pogenic changes in atmospheric composition. However, future climate development will not only be influ- enced by anthropogenic cha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b54e47a889fc56f00950a49b70859e2
https://doi.org/10.1016/j.gloplacha.2011.09.005
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9
The pulsations of PG 1351+489
Autor: Carl J. Hansen, Judith L. Provencal, D. A. H. Buckley, Waldemar Ogloza, Michael D. Reed, M. M. Brewer, Hari Om Vats, Mary E. Oksala, Jian-Ning Fu, R. E. Nather, Denis J. Sullivan, Luciano Fraga, Ramotholo Sefako, Ivan Bruni, J. E. S. Costa, Matt A. Wood, Wen Ping Chen, W. Strickland, Fergal Mullally, Roberto Silvotti, B. N. Ashoka, B. Walter, Timothy M. Brown, S. Hemar, R. Rosen, E. G. Meištas, P. Henrique, M. Andreev, X. Zhang, T. K. Watson, Kiran S. Baliyan, P. Ibbetson, Chuck Claver, Rimvydas Janulis, Harry L. Shipman, Michael H. Montgomery, Gerald Handler, J. C. Clemens, Antonio Kanaan, M. Chevreton, J. Dalessio, J.-E. Solheim, Thorsten Nagel, S. L. Kim, B. Pfeiffer, A. V. Chernyshev, Susan E. Thompson, Martin A. Barstow, S. Seetha, M. Redaelli, Donald E Winget, Atsuko Nitta, T. M. K. Marar, G. Vauclair, Michal Siwak, M. Yang, Xiao-Jun Jiang, Orlagh Creevey, Pawel Moskalik, Elia M. Leibowitz, A. V. Sergeev, J. R. Fremy, G. Pajdosz, M. Winiarski, S. J. Kleinman, D. Chandler, Andrzej S. Baran, Souza Oliveira Kepler, B. G. Castanheira, Chia-You Shih, Staszek Zola, O. Giovannini, D. Childers, Agnès Bischoff-Kim, Zs. Bognár, Donal O'Donoghue, N. Dolez, Steven D. Kawaler
Publikováno v: Monthly Notices of the Royal Astronomical Society. 415:1220-1227
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
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eff6ec6cd934d00a13956828bfc01a0b
https://doi.org/10.1111/j.1365-2966.2011.18743.x
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10
The cool ZZ Ceti star PG 2303+243: observations and analysis of variability in 2004
Autor: F. Rodler, J. Zdanavičius, Margit Paparo, G. W. Wolf, E. Pakštienė, Zs. Bognár, Michael D. Reed, J.-E. Solheim, B. Steininger, Gerald Handler
Publikováno v: Monthly Notices of the Royal Astronomical Society. 415:1322-1333
PG 2303+243 is a cool DA variable (also called ZZ Ceti) star with a rich pulsation spectrum and variable amplitudes. A mini-campaign involving six observatories yielded time-resolved photometric measurements of PG 2303+243 during the period 2004 Sept
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3178cb98843ab3f5b8db0b22a9496eb
https://doi.org/10.1111/j.1365-2966.2011.18781.x
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