Hostname: page-component-669899f699-8p65j Total loading time: 0 Render date: 2025-04-26T08:38:40.033Z Has data issue: false hasContentIssue false
  • English
  • Français

Gravothermal Oscillations

Published online by Cambridge University Press:  04 August 2017

Erich Bettwieser
Erich Bettwieser*
Affiliation:
University Observatory Göttingen, Geismarlandstr. 11 3400 Göttingen Federal Republic of Germany

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Stellardynamical systems are modelled by gaseous spheres. The properties of an isothermal equilibrium configuration with a central singularity are discussed in the context of post-collapse evolution. For the numerical calculations heating effects are taken into account. Evolution towards the equilibrium configuration is monotonically only if much energy is delivered from hardening processes of binary stars. Since the equilibrium configuration is gravo-thermally unstable a minute emission of energy is sufficient to turn gravothermal contraction into gravothermal expansion. In such case equilibrium is approached by oscillations of the core.

Type
May 30: Model System in the Point-Mass Approximation
Information
Symposium - International Astronomical Union , Volume 113: Dynamic of Stars Clusters , 1985 , pp. 219 - 230
Copyright
Copyright © Reidel 1985 

References

Bettwieser, E., Inagaki, S., 1984. to be submitted.Google Scholar
Bettwieser, E., Fritze, U., 1984. Publ. Astron. Soc. Japan, 36, 3024.Google Scholar
Bettwieser, E., Fricke, K.J., Spurzem, R., 1984. to be submitted.Google Scholar
Bettwieser, E., Sugimoto, D., 1984. Monthly Not. Roy. Astr. Soc., 208, 439. (“BS”) Google Scholar
Cohn, H., 1985. cf. this volume.Google Scholar
Cohn, H., 1980. Astrophys. J. 242, 765.CrossRefGoogle Scholar
Djorgovski, S., King, I.R., 1983. preprint.Google Scholar
Djorgovski, S., Penner, H., 1984. preprint.Google Scholar
Heggie, D.C., 1984. Monthly Not. Roy. Astr. Soc., 206, 179.CrossRefGoogle Scholar
Hachisu, I., Sugimoto, D., 1978. Prog. theor. Phys., 60, 123.CrossRefGoogle Scholar
Hénon, M., 1975. Dynamics of Stellar Systems. 69, p. 122, ed. Hayli, A., Reidel, Dordrecht/Holland.Google Scholar
Inagaki, S., Lynden-Bell, D., 1983. Monthly Not. Roy. Astr. Soc., 205, 913. (“ILB”)mCrossRefGoogle Scholar
Lightman, L.P., McMillian, S., 1985. cf. this volume.Google Scholar
Peterson, C.J., King, I.R., 1975. Astron. J., 80, 427.CrossRefGoogle Scholar