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Sound speed and oscillation frequencies for solar models evolved with Los Alamos ATOMIC opacities

  • Joyce A. Guzik (a1), C. J. Fontes (a1), P. Walczak (a2), S. R. Wood (a3), K. Mussack (a1) and E. Farag (a1) (a4)...

Abstract

Los Alamos National Laboratory has calculated a new generation of radiative opacities (OPLIB data using the ATOMIC code) for elements with atomic number Z = 1-30 with improved physics input, updated atomic data, and finer temperature grid to replace the Los Alamos LEDCOP opacities released in the year 2000. We calculate the evolution of standard solar models including these new opacities, and compare with models evolved using the Lawrence Livermore National Laboratory OPAL opacities (Iglesias & Rogers 1996). We use the solar abundance mixture of Asplund et al. 2009. The Los Alamos ATOMIC opacities (Colgan et al. 2013a, 2013b, 2015) have steeper opacity derivatives than those of OPAL for temperatures and densities of the solar interior radiative zone. We compare the calculated nonadiabatic solar oscillation frequencies and solar interior sound speed to observed frequencies and helioseismic inferences. The calculated sound-speed profiles are similar for models evolved using either the updated Iben evolution code (see Guzik & Mussack 2010), or the MESA evolution code (Paxton et al. 2015). The LANL ATOMIC opacities partially mitigate the ‘solar abundance problem’.

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References

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Asplund, M., Grevesse, N., Sauval, A.,J., & Scott, P. 2009, ARAA 47 481 [AGSS09]
Bailey, J. et al. 2015, Nature, 517, 56
Basu, S., et al. 2000, ApJ, 529, 1084
Basu, S. & Antia, H. M. 2004, ApJ (Lett.), 606, L85
Chaplin, W. J., et al. 1998, MNRAS, 300, 1077
Colgan, J., Kilcrease, D. P., Magee, N. H. Jr., Armstrong, G. S. J., Abdallah, J. Jr., Sherrill, M. E., Fontes, C. J., Zhang, H. L., & Hakel, P. 2013a, ICAMDATA Gaithersburg MD, AIP Conf. 1545 (AiP, New York), pp. 17-26
Colgan, J., Kilcrease, D. P., Magee, N. H. Jr., Armstrong, G. S. J., Abdallah, J. Jr., Sherrill, M. E., Fontes, C. J., Zhang, H. L., & Hakel, P. 2013b, HEDP, 9, 369
Colgan, J., Kilcrease, D. P., Magee, N. H. Jr., Armstrong, G. S. J., Abdallah, J. Jr., Sherrill, M. E., Fontes, C. J., Zhang, H. L., & Hakel, P. 2015, HEDP, 14, 33
Ferguson, J., et al. 2005, ApJ, 623, 585
Garcia, R. A., et al. 2001, Sol. Phys., 200, 361
Guzik, J. A. & Mussack, K. 2010, ApJ, 713, 1108
Iglesias, C. & Rogers, F. J. 1996, ApJ, 464, 943
Paxton, B., et al. 2015, ApJ (Suppl.), submitted June 2015, 2015arXiv150603146P
Pesnell, W. D. 1990, ApJ, 363, 227
Schou, J. & Tomczyk, S. 1996, m2 table, http://mlso.hao.ucar.edu/LowL/ data.html
Walczak, P., Fontes, C. J., Colgan, J., Kilcrease, D. P., & Guzik, J. A. 2015, A&A (Lett.), 580, L9
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Keywords

Sound speed and oscillation frequencies for solar models evolved with Los Alamos ATOMIC opacities

  • Joyce A. Guzik (a1), C. J. Fontes (a1), P. Walczak (a2), S. R. Wood (a3), K. Mussack (a1) and E. Farag (a1) (a4)...

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