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Spectroscopic Diagnosis on Symbiotic Star Z and During Recent Outburst Phase

  • Shin’ichi Tamura
  • Masaaki Otsuka
  • A. Skopal
  • T. Pribulla
  • M. Vanko
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 298)

Abstract

This report aims to present preliminary results of spectroscopic diagnosis on symbiotic star Z And during recent outburst phenomenon. We have made high dispersion spectroscopy with HIDES (HIgh Dispersion Echelle Spectrograph) at Okayama Astrophysical Observatory (OAO) since Jan. 2001. Z And is a binary system with an orbital period of 758.8 day. We are concerned with distinguishing spectroscopic characteristics at outburst phase from quiescent one, and from the orbital change. The most conspicuous feature of spectroscopic results is the violet shift of He IIλ686 and [Fe VII] λ6087 as a whole and susequent gradual returning to their original wavelengths. Broad Hα line-profiles do not show drastic changes except complicated behavior of violet side those are already noticed by previous study.

Keywords

Stars-symbiotic Stars-Z And Spetroscopy-high dispersion 

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References

  1. Formiggini, L. and Leibowitz, E. M. A&A, 292, 534–542, 1994.ADSGoogle Scholar
  2. Mikolajewska, J. and Kenyon, S. A. J., 112, 1659, 1996.Google Scholar
  3. Schmid, H. M. and Schild, H. A&A, 327, 219, 1997.ADSGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • Shin’ichi Tamura
    • 1
  • Masaaki Otsuka
    • 1
  • A. Skopal
    • 2
  • T. Pribulla
    • 2
  • M. Vanko
    • 2
  1. 1.Astronomical InstituteTohoku UniveristySendaiJapan
  2. 2.Astronomical InstituteSlovak Academy of ScencesTatranská LomincaSlovakia

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