[en] CLÉS is an evolution code recently developed to produce stellar models meeting the specific requirements of studies in asteroseismology. It offers the users a lot of choices in the input physics they want in their models and its versatility allows them to tailor the code to their needs and implement easily new features. We describe the features implemented in the current version of the code and the techniques used to solve the equations of stellar structure and evolution. A brief account is given of the use of the program and of a solar calibration realized with it.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Scuflaire, Richard ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)
Théado, Sylvie
Montalban Iglesias, Josefa ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Miglio, Andrea ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Bourge, Pierre-Olivier
Godart, Mélanie ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Thoul, Anne ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Noels-Grötsch, Arlette ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Allen, C.W.: Astrophysical Quantities, 3rd edn. Athlone, London (1973)
Anders, E., Grevesse, N.: Abundances of the elements: meteoritic and solar. Geochim. Cosmochim. Acta 53, 197-214 (1989)
Angulo, C., Arnould, M., Rayet, M., Descouvemont, P., Baye, D., Leclercq-Willain, C., Coc, A., Barhoumi, S., Aguer, P., Rolfs, C., et al.: A compilation of charged-particle induced thermonuclear reaction rates. Nucl. Phys. A 656, 3-183 (1999)
Asplund, M., Grevesse, N., Sauval, J.: The solar chemical composition. In: Bash, F.N., Barnes, T.G. (eds.) Cosmic Abundances as Records of Stellar Evolution and Nucleosynthesis. ASP Conf. Ser. vol. 336, pp. 25-38 (2005)
Badnell, N.R., Bautista, M.A., Butler, K., Delahaye, F., Mendoza, C., Palmeri, P., Zeippen, C.J., Seaton, M.J.: Updated opacities from the Opacity Project. Mon. Not. R. Astron. Soc. 360, 458-464 (2005)
Bahcall, J.N., Pinsonneault, M.H., Wasserburg, G.J.: Solar models with helium and heavy-element diffusion. Rev. Mod. Phys. 67, 781-808 (1995)
Bahcall, J.N., Pinsonneault, M.H., Basu, S.: Solar models: current epoch and time dependences, neutrinos, and helioseismological properties. Astrophys. J. 555, 990-1012 (2001)
Basu, S., Antia, H.M.: Seismic measurement of the depth of the solar convective zone. Mon. Not. R. Astron. Soc. 287, 189-198 (1997)
Basu, S., Pinsonneault, M.H., Bahcall, J.N.: How much do helioseismological inferences depend on the assumed reference model? Astrophys. J. 529, 1084-1100 (2000)
Böhm-Vitense, E.: Über die Wasserstoffkonvektionszone in Sternen verschiedener Effektivtemperaturen und Leuchtkräfte. Z. Astrophys. 46, 108-143 (1958)
Boothroyd, A.I., Sackmann, I.-J.: Our sun, IV. The standard model and helioseismology: consequences of uncertainties in input physics and in observed solar parameters. Astrophys. J. 583, 1004-1023 (2003)
Bourge, P.-O., Alecian, G.: Do radiative forces in β Cephei stars have an effect on the excitation of their pulsations? In: Sterken, C., Aerts, C. (eds.) Astrophysics of Variable Stars, Pecs, Hungary, 5-10 September 2005. ASP Conf. Ser., vol. 349, pp. 201-206 (2006)
Bourge, P.-O., Alecian, G., Thoul, A., Scuflaire, R., Théado, S.: Radiative forces and pulsation in β Cephei stars. In: Distant Worlds, Proceedings of the Asteroseismology Session of JENAM, Liège, 4-7 July 2005. Comm. in Asteroseismology, vol. 147, pp. 105-108 (2006)
Bourge, P.-O., Théado, S., Thoul, A.: Effects of diffusion in β Cephei stars. In: Vienna Workshop on the Future of Asteroseismology, 20-22 September 2006. Comm. in Asteroseismology, vol. 150, pp. 203-204 (2007)
Canuto, V.M., Mazzitelli, I.: Stellar turbulent convection: a new model and applications. Astrophys. J. 370, 295-311 (1991)
Canuto, V.M., Mazzitelli, I.: Further improvements of a new model for turbulent convection in stars. Astrophys. J. 389, 724-730 (1992)
Caughlan, G.R., Fowler, W.A.: Thermonuclear reaction rates V. At. Data Nucl. Data Tables 40, 283-334 (1988)
Christensen-Dalsgaard, J., Däppen, W.: Solar oscillations and the equation of state. Annu. Rev. Astron. Astrophys. 4, 267-361 (1992)
Cox, J.P., Giuli, R.: Principles of Stellar Structure. Gordon and Breach, New York (1968)
Formicola, A., Imbriani, G., Costantini, H., Angulo, C., Bemmerer, D., Bonetti, R., Broggini, C., Corvisiero, P., Cruz, J., Descouvemont, P., et al.: Astrophysical S-factor of 14N(p,γ)15O. Phys. Lett. B 591, 61-68 (2004)
Godart, M.: Temperature gradients in the core overshooting region. In: Vienna Workshop on the Future of Asteroseismology, 20-22 September 2006. Comm. in Asteroseismology, vol. 150, pp. 185-186 (2007)
Grevesse, N., Noels, A.: Cosmic Abundances of the Elements. In: Pratzo, N., Vangioni-Flam, E., Cassé, M. (eds.) Origin and Evolution of the Elements, pp. 15-25. Cambridge University Press, Cambridge (1993)
Henyey, L., Vardya, M.S., Bodenheimer, P.: Studies in stellar evolution, III: the calculation of model envelopes. Astrophys. J. 142, 841-854 (1965)
Kippenhahn, R., Weigert, A.: Stellar Structure and Evolution. Springer, Berlin (1990)
Kurucz, R.L.: Grids of model atmospheres. http://kurucz.harvard.edu/ grids.html (1998)
Miglio, A., Montalbán, J.: Constraining fundamental stellar parameters using seismology. Application to α Centauri AB. Astron. Astrophys. 441, 615-629 (2005)
Miglio, A., Montalbán, J., Scuflaire, R.: Clés, outcome of the comparisons and future plans. Paper presented at the Joint ENEA and COROT Evolution and Seismic Tools Activity Workshop on Model Comparison, Aarhus, 24-28 October 2005. http://www.astro.up.pt/corot/welcome/meetings/m4/ ESTA_Aarhus_Miglio.pdf (2005)
Miglio, A., Bourge, P.-O., Montalbán, J., Dupret, M.-A.: Instability strips of main sequence B stars: a parametric study of iron enhancement. In: Vienna Workshop on the Future of Asteroseismology, 20-22 September 2006. Comm. in Asteroseismology, vol. 150, pp. 209-210 (2007a)
Miglio, A., Montalbán, J., Dupret, M.-A.: Instability strips of SPB and β Cepei stars: the effect of the updated OP opacities and of the metal mixture. Mon. Not. R. Astron. Soc. 375, L21-L25 (2007b)
Miglio, A., Montalbán, J., Maceroni, C.: 12 Bootis: a test bed for extra-mixing processes in stars. Mon. Not. R. Astron. Soc. 377, 373-382 (2007c)
Montalbán, J.: Testing CLÉS 18. Paper presented at the Joint ENEA and COROT Evolution and Seismic Tools Activity Workshop on Model Comparison, Aarhus, 24-28 October 2005. http://www.astro.up.pt/corot/welcome/ meetings/m4/ESTA_Aarhus_Montalban.pdf (2005)
Montalbán, J., Lebreton, Y.: CESAM 2K-CLÉS 18: Case 1.5. Paper presented at the 3rd CoRoT/ESTA Meeting, Nice, 26-27 September 2005. http://www.astro.up.pt/corot/welcome/meetings/m3/ESTA_Nice_Montalban.pdf (2005)
Montalbán, J., Lebreton, Y., Scuflaire, R., Miglio, A.: Model comparison: CESAM-CLÉS. Application to Task 1.5. Paper presented at 9th COROT Week Noordwijk, The Netherlands, 5-9 December 2005. http://www.astro.up. pt/corot/welcome/meetings/m5/ESTA_CW9_Montalban_2.pdf (2005)
Montalbán, J., Théado, S., Lebreton, Y.: In: Straka, C., Lebreton, Y., Monteiro, M. (eds.) Proceedings Joint HELAS/Corot Workshop. EAS Publication Series (2007)
Rogers, F.J., Nayfonov, A.: Updated and expanded OPAL equation-of-state tables: implications for helioseismology. Astrophys. J. 576, 1064-1074 (2002)
Salpeter, E.E.: Electrons screening and thermonuclear reactions. Aust. J. Phys. 7, 373-388 (1954)
Seaton, M.J.: Opacity Project data on CD for mean opacities and radiative accelerations. Mon. Not. R. Astron. Soc. 362, L1-L3 (2005)
Stancliffe, R.J.: Does simultaneous solution matter for stellar evolution codes? Mon. Not. R. Astron. Soc. 370, 1817-1822 (2006)
Strittmatter, P.A., Faulkner, J., Robertson, J.W., Faulkner, D.J.: A question of entropy. Astrophys. J. 161, 369-373 (1970)
Thoul, A., Bahcall, J.N., Loeb, A.: Element diffusion in the solar interior. Astrophys. J. 421, 828-842 (1994)