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Multisite observations of the PMS delta Scuti star V351 Ori
Ripepi, V; Marconi, M; Bernabei, S; Palla, F; Pinheiro, FJG; Folha, DFM; Oswalt, TD; Terranegra, L; Ferro, AA; Jiang, XJ; Alcala, JM; Marinoni, S; Monteiro, MJPFG; Rudkin, M; Johnston, K
AbstractWe present the results of multisite observations spanning two years on the pre-main-sequence (PMS) star V351 Ori. A total of around 180 hours of observations over 29 nights have been collected, allowing us to measure five different periodicities, most likely related to the delta Scuti variability of V351 Ori. Comparison with the predictions of linear nonadiabatic radial pulsation models put stringent constraints on the stellar parameters and indicate that the distance to V351 Ori is intermediate between the lower limit measured by Hipparcos (210 pc) and that of the Orion Nebula (450 pc). However, radial pulsation models are unable to reproduce all of the observed frequencies with a single choice of (M-*, L-*, and T-eff), suggesting the presence of additional nonradial modes.
KeywordStars : Variables : Delta Scuti Stars : Oscillations Stars : Pre-main Sequence Stars : Fundamental Parameters Stars : Individual : V351 Ori
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WOS IDWOS:000185212600027
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Document Type期刊论文
Affiliation1.Osserv Astron Capodimonte, INAF, I-80131 Naples, Italy
2.Osservatorio Astron Bologna, INAF, I-40127 Bologna, Italy
3.Univ La Laguna, Dept Astrofis, San Cristobal la Laguna 30071, Spain
4.Osserv Astrofis Arcetri, INAF, I-50125 Florence, Italy
5.Univ Porto, Ctr Astrofis, P-4150762 Oporto, Portugal
6.Florida Inst Technol, Melbourne, FL 32901 USA
7.Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 04510, DF, Mexico
8.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
Ripepi, V,Marconi, M,Bernabei, S,et al. Multisite observations of the PMS delta Scuti star V351 Ori[J]. ASTRONOMY & ASTROPHYSICS,2003,408(3):1047-+.
APA Ripepi, V.,Marconi, M.,Bernabei, S.,Palla, F.,Pinheiro, FJG.,...&Johnston, K.(2003).Multisite observations of the PMS delta Scuti star V351 Ori.ASTRONOMY & ASTROPHYSICS,408(3),1047-+.
MLA Ripepi, V,et al."Multisite observations of the PMS delta Scuti star V351 Ori".ASTRONOMY & ASTROPHYSICS 408.3(2003):1047-+.
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