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The pulsations of PG 1351+489
Redaelli, M.1; Kepler, S. O.1; Costa, J. E. S.1; Winget, D. E.2,3; Handler, G.4; Castanheira, B. G.1,2,3,4; Kanaan, A.5; Fraga, L.6; Henrique, P.5; Giovannini, O.7; Provencal, J. L.8,9; Shipman, H. L.8; Dalessio, J.8; Thompson, S. E.9,10; Mullally, F.10; Brewer, M. M.11; Childers, D.12; Oksala, M. E.13; Rosen, R.14; Wood, M. A.15; Reed, M. D.16,17; Walter, B.18,19; Strickland, W.18,19; Chandler, D.18,19; Watson, T. K.20; Nather, R. E.2,3; Montgomery, M. H.2,3; Bischoff-Kim, A.21; Hansen, C. J.22; Nitta, A.23; Kleinman, S. J.23; Claver, C. F.24; Brown, T. M.25; Sullivan, D. J.26; Kim, S. -L.27; Chen, W. -P.28; Yang, M.28; Shih, C. -Y.28; Zhang, X.29; Jiang, X.29; Fu, J. N.30; Seetha, S.31; Ashoka, B. N.31; Marar, T. M. K.31; Baliyan, K. S.32; Vats, H. O.32; Chernyshev, A. V.33; Ibbetson, P.34; Leibowitz, E.34,35; Hemar, S.34,35; Sergeev, A. V.36; Andreev, M. V.36; Janulis, R.37; Meistas, E. G.37; Moskalik, P.38; Pajdosz, G.38; Baran, A.2,39; Winiarski, M.39; Zola, S.39,40; Ogloza, W.39; Siwak, M.40; Bognar, Zs.41; Solheim, J. -E.42; Sefako, R.43; Buckley, D.43; O'Donoghue, D.43; Nagel, T.44; Silvotti, R.45; Bruni, I.45; Fremy, J. R.46; Vauclair, G.47; Chevreton, M.46; Dolez, N.47; Pfeiffer, B.47; Barstow, M. A.48; Creevey, O. L.49; Kawaler, S. D.50; Clemens, J. C.51
2011-08-01
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号415期号:2页码:1220-1227
摘要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 489.334 48 s 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 8.9 h, and discuss a possible determination of the rate of period change of (2.0 +/- 0.9) x 10(-13) s s(-1), the first such estimate for a DBV.
关键词Stars: Evolution Stars: Individual: Pg 1351+489 Stars: Oscillations White Dwarfs
DOI10.1111/j.1365-2966.2011.18743.x
收录类别SCI
语种英语
WOS记录号WOS:000293756300018
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8380
专题光学天文研究部
作者单位1.Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil
2.Univ Texas Austin, Dept Astron, Austin, TX 78712 USA
3.Univ Texas Austin, McDonald Observ, Austin, TX 78712 USA
4.Univ Vienna, Inst Astron, A-1180 Vienna, Austria
5.Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil
6.So Observ Astrophys Res, La Serena, Chile
7.Univ Caxias Sul, Dept Quim & Fis, BR-95070560 Caxias Do Sul, RS, Brazil
8.Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA
9.Mt Cuba Observ, Delaware Asteroseism Res Ctr, Greenville, DE 19807 USA
10.NASA, SETI Inst, Ames Res Ctr, Moffett Field, CA 94035 USA
11.William Jewell Coll, Liberty, MO 64048 USA
12.Delaware Cty Community Coll, Dept Math & Sci, Media, DE USA
13.Univ Delaware, Bartol Res Inst, Newark, DE USA
14.Natl Radio Astron Observ, Green Bank, WV 24944 USA
15.Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA
16.Missouri State Univ, Springfield, MO 65897 USA
17.Baker Observ, Springfield, MO 65897 USA
18.Meyer Observ, Waco, TX USA
19.Cent Texas Astron Soc, Waco, TX USA
20.Southwestern Univ, Georgetown, TX USA
21.Georgia Coll & State Univ, Dept Chem Phys & Astron, Milledgeville, GA USA
22.Univ Colorado, Joint Inst Lab Astrophys, Boulder, CO 80309 USA
23.Gemini Observ, Hilo, HI 96720 USA
24.Kitt Peak Natl Observ, Natl Opt Astron Observ, Tucson, AZ 85726 USA
25.Las Cumbres Observ Global Telescope Network Inc, Santa Barbara, CA 93117 USA
26.Victoria Univ Wellington, Wellington, New Zealand
27.Korea Astron & Space Sci Inst, Taejon 305348, South Korea
28.Natl Cent Univ, Lulin Observ, Taipei, Taiwan
29.Natl Astron Observ, Beijing 100012, Peoples R China
30.Beijing Normal Univ, Dept Astron, Beijing, Peoples R China
31.Indian Space Res Org, Bangalore 560017, Karnataka, India
32.Phys Res Lab, Ahmadabad 380009, Gujarat, India
33.Astron Inst, Tashkent, Uzbekistan
34.Tel Aviv Univ, Wise Observ, IL-69978 Tel Aviv, Israel
35.Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel
36.Natl Acad Sci, Main Astron Observ, UA-02225265 Kiev, Ukraine
37.Vilnius Univ, Inst Theoret Phys & Astron, Vilnius, Lithuania
38.Copernicus Astron Ctr, Warsaw, Poland
39.Cracow Pedag Univ, Mt Suhora Observ, Krakow, Poland
40.Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland
41.Konkoly Observ Budapest, H-1525 Budapest, Hungary
42.Univ Oslo, Inst Theoret Astrophys, NO-0315 Oslo, Norway
43.S African Astron Observ, ZA-7935 Cape Town, South Africa
44.Univ Tubingen, Inst Astron & Astrophys, D-72076 Tubingen, Germany
45.INAF Osservatorio Astron Torino, I-10025 Pino Torinese, Italy
46.Observ Paris, LESIA, Meudon, France
47.Univ Toulouse, CNRS, Lab Astrophys Toulouse Tarbes, UMR5572, Toulouse, France
48.Univ Leicester, Dept Astron, Leicester LE1 7RH, Leics, England
49.Inst Astrofis Canarias, Tenerife, Spain
50.Iowa State Univ, Dept Phys & Astron, Ames, IA 50211 USA
51.Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA
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Redaelli, M.,Kepler, S. O.,Costa, J. E. S.,et al. The pulsations of PG 1351+489[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2011,415(2):1220-1227.
APA Redaelli, M..,Kepler, S. O..,Costa, J. E. S..,Winget, D. E..,Handler, G..,...&Clemens, J. C..(2011).The pulsations of PG 1351+489.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,415(2),1220-1227.
MLA Redaelli, M.,et al."The pulsations of PG 1351+489".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 415.2(2011):1220-1227.
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