Hostname: page-component-5c6d5d7d68-lvtdw Total loading time: 0 Render date: 2024-08-19T06:27:47.354Z Has data issue: false hasContentIssue false
  • English
  • Français

Episodes of Emission Lines in the Spectra of Red Giants as Signatures of Remnant Planetary Systems

Published online by Cambridge University Press:  26 May 2016

G. M. Rudnitskij
G. M. Rudnitskij*
Affiliation:
Sternberg Astronomical Institute, Moscow State University, 13 Universitetskij prospekt, Moscow, 119899 Russia

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.

When a star with a mass of about 1 solar mass enters the red giant stage of its evolution, the radius of its atmosphere reaches several astronomical units. If the star possessed during its mainsequence life a planetary system, similar to the solar system, the planets will be embedded into a rather dense and hot medium. Effects of a planet revolving around a red giant at a short distance (inside its circumstellar envelope) are discussed. Systematic monitoring of the spectra of red giants may reveal periodicities in the emergence of shock-induced emission lines and thus to detect probable remnant planetary systems around these stars.

Type
Part I: Discovery and study of extrasolar planets - current
Information
Symposium - International Astronomical Union , Volume 202: Planetary Systems in the Universe – Observation, Formation and Evolution , 2004 , pp. 115 - 117
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Esipov, V.F., Pashchenko, M.I., Rudnitskij, G.M., & Fomin, S.V. 1999, Astron. Lett., 25, 672.Google Scholar
Fox, M.W. & Wood, P.R. 1985, ApJ, 297, 455.CrossRefGoogle Scholar
Fox, M.W., Wood, P.R., & Dopita, M.A. 1984, ApJ, 286, 337.CrossRefGoogle Scholar
Rudnitskij, G.M., Lekht, E.E., Mendoza-Torres, J.E., Pashchenko, M.I., & Berulis, I.I. 2000, A&AS, 146, 385.Google Scholar
Soker, N. 1999, MNRAS, 306, 806.CrossRefGoogle Scholar
Struck-Marcell, C. 1988, ApJ, 330, 986.CrossRefGoogle Scholar
Taam, R.E., Bodenheimer, P., & Ostriker, J.P. 1978, ApJ, 222, 269.Google Scholar
Tsikulin, M.A. 1969, Shock Waves Induced in the Atmosphere by Motion of Large Meteoritic Bodies (in Russian) (Moscow: Nauka).Google Scholar