Zobrazeno 1 - 10 of 73 pro vyhledávání: '"M. S. O'Brien"'
1
A SEARCH FOR PULSATION IN TWENTY-ONE WHITE DWARFS
Autor: Ernst Paunzen, T. K. Watson, Marek Drozdz, Z. Zemanová, Jan Janík, Gerald Handler, M. S. O’Brien, M. Rode-Paunzen
Publikováno v: Revista Mexicana de Astronomía y Astrofísica. 56:193-199
Well-defined astrophysical constraints of white dwarfs (WDs), such as on the presence or absence of pulsational variability, are very much needed to refine and develop current models. Because these stars are rather faint and variability periods are m
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3dbef2a0a0abfe9c9793d22d8498377
https://doi.org/10.22201/ia.01851101p.2020.56.02.02
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2
Whole Earth telescope observations of the ZZ Ceti star HL Tau 76
Autor: Waldemar Ogloza, P. Ibbetson, S. Zola, Matt A. Wood, M. S. O'Brien, Nicole M. Silvestri, R. E. Nather, Antonio Kanaan, E. W. Klumpe, Travis S. Metcalfe, S. Bernabei, G. Vauclair, Dong Xu, E. G. Meištas, Luciano Fraga, B. N. Ashoka, R. Kalytis, Ana Ulla, J. Krzesinski, N. Dolez, Michael D. Reed, Denis J. Sullivan, T. J. Ahrens, T. Sullivan, Rimvydas Janulis, Divas Sanwal, S. J. Kleinman, M. Chevreton, J. E. Solheim, Steven D. Kawaler, Pawel Moskalik, Roberto Silvotti, J. M. Gonzalez Perez, J. N. Fu, Xiao-Jun Jiang, Eran O. Ofek, Elia M. Leibowitz, D. Ališauskas, Anjum S. Mukadam, Gerald Handler, D. Kilkenny
Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2006, 446, pp.237-257. ⟨10.1051/0004-6361:20053149⟩
Astronomy and Astrophysics-A&A, 2006, 446, pp.237-257. ⟨10.1051/0004-6361:20053149⟩
International audience; This paper analyses the Whole Earth Telescope observations of HL Tau 76, the first discovered pulsating DA white dwarf. The star was observed during two Whole Earth Telescope campaigns. It was a second priority target during t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::672c9461ff9b74dfbe6d17278d3417b6
https://doi.org/10.1051/0004-6361:20053149
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3
DQ Herculis in Profile: Whole Earth Telescope Observations and Smoothed Particle Hydrodynamics Simulations of an Edge‐on Cataclysmic Variable System
Autor: M. A. Wood, J. R. Robertson, J. C. Simpson, S. D. Kawaler, M. S. O’Brien, R. E. Nather, D. E. Winget, M. H. Montgomery, T. S. Metcalfe, X. J. Jiang, E. M. Leibowitz, P. Ibbetson, D. O’Donoghue, S. Zola, J. Krzesinski, G. Pajdosz, G. Vauclair, N. Dolez, M. Chevreton, D. J. Sullivan, A. Kanaan, A. Nitta
Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2005, 634, pp.570-584. ⟨10.1086/496957⟩
International audience; The old nova DQ Herculis was the Whole Earth Telescope Northern Hemisphere target for the 1997 July campaign and was observed on four nights with the SARA 0.9 m telescope during 2003 June. We present updated ephemerides for th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8c46cdeeaf0caa6b47b6cecc81cccd7
https://doi.org/10.1086/496957
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4
Whole Earth Telescope observations of the pulsating hot white dwarf PG 1707+427
Autor: Chuck Claver, E. M. Potter, Timothy R. Bedding, M. Chevreton, Don Winget, Pawel Moskalik, S. J. Kleinman, Anne E. Sansom, Albert D. Grauer, Simon J. O'Toole, J. S. Dixson, Martin A. Barstow, Souza Oliveira Kepler, G. Vauclair, R. E. Nather, F. Wesemael, Z. E. Dind, M. Vuckovic, T. K. Watson, Gilles Fontaine, Paul A. Bradley, M. S. O'Brien, J. C. Clemens, Antonio Kanaan, Pierre Bergeron, J. L. Provencal, Steven D. Kawaler, N. Dolez
Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2004, 428, pp.969-981. ⟨10.1051/0004-6361:20041475⟩
International audience; We report on the analysis of multisite time-series photometry of the pulsating pre-white dwarf (GW Vir star) PG 1707+427, obtained by the Whole Earth Telescope collaboration. This is the last of the known GW Vir stars without
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a656b9ea7fb9857f78986ad52dd18ffb
https://doi.org/10.1051/0004-6361:20041475
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5
Constraining the Evolution of ZZ Ceti
Autor: N. Dolez, Pawel Moskalik, R. L. Riddle, Minia Manteiga, Gerald Handler, O. Suárez, Antonio Kanaan, W. Ogloza, J. E. Solheim, D. Kilkenny, B. N. Ashoka, Jaymie M. Matthews, Jian-Ning Fu, R. E. Nather, J. Krzesinski, M. S. O’Brien, T. J. Ahrens, Luciano Fraga, R. R. Shobbrook, Mukremin Kilic, Paul A. Bradley, Joyce A. Guzik, Eran O. Ofek, S. J. Kleinman, A. F. M. Costa, M. Müller, Nicole M. Silvestri, Elia M. Leibowitz, Margarida S. Cunha, T. K. Watson, R. Kalytis, Souza Oliveira Kepler, M. Chevreton, Fergal Mullally, O. Giovannini, Pierre Bergeron, Santosh Joshi, K. Sekiguchi, D. Ališauskas, Gilles Fontaine, E. G. Meištas, Atsuko Nitta, T. von Hippel, Divas Sanwal, Staszek Zola, D. J. Sullivan, R. Janulis, Anjum S. Mukadam, Donald E Winget, Xiao-Jun Jiang, D. W. Kurtz, Donal O'Donoghue, Roberto Silvotti, P. V. Birch, E. W. Klumpe, F. Johannessen, G. Vauclair, D. W. Xu, T. Sullivan, Matt A. Wood, P. Ibbetson, Ana Ulla, Michael D. Reed, T. S. Metcalfe, J. M. Gonzalez-Perez, S. Bernabei, Steven D. Kawaler
Publikováno v: ResearcherID
Scopus-Elsevier
The Astrophysical Journal
The Astrophysical Journal, 2003, 594, pp.961-970. ⟨10.1086/377044⟩
Baltic Astronomy
Baltic Astronomy, 2003, 12, pp.71-103
CIÊNCIAVITAE
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
NASA Astrophysics Data System
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 C
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fec0fe35bd8b0a44ba7cfeedb8296f55
https://doi.org/10.1086/377044
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