The effects of metallicity on {delta} Scuti star asteroseismology

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In {delta} Scuti star seismology, most researchers use evolution and pulsation models assuming a solar element mixture and Z = 0.02 for preliminary determinations of stellar masses or evolutionary state from observed frequencies. Here the authors investigate the consequences of this assumption by considering the effects of metallicity changes in the models on their inferences of the internal structure of {delta} Scuti stars. They use the main-sequence {delta} Scuti star FG Vir, and the more evolved shell hydrogen burning star {delta} Scuti to illustrate their results.

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8 p.

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Guzik, J.A.; Bradley, P.A. & Templeton, M.R. March 1, 1998.

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Description

In {delta} Scuti star seismology, most researchers use evolution and pulsation models assuming a solar element mixture and Z = 0.02 for preliminary determinations of stellar masses or evolutionary state from observed frequencies. Here the authors investigate the consequences of this assumption by considering the effects of metallicity changes in the models on their inferences of the internal structure of {delta} Scuti stars. They use the main-sequence {delta} Scuti star FG Vir, and the more evolved shell hydrogen burning star {delta} Scuti to illustrate their results.

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8 p.

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OSTI as DE98004336

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  • Workshop: a half century of stellar pulsation interpretations - a tribute to Arthur N. Cox, Los Alamos, NM (United States), 16-20 Jun 1997

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  • Other: DE98004336
  • Report No.: LA-UR--97-4910
  • Report No.: CONF-9706195--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 645579
  • Archival Resource Key: ark:/67531/metadc696259

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  • March 1, 1998

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 29, 2016, 2:18 p.m.

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Guzik, J.A.; Bradley, P.A. & Templeton, M.R. The effects of metallicity on {delta} Scuti star asteroseismology, article, March 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc696259/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.