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The Close Environment of Z CMa Binary System

Published online by Cambridge University Press:  13 May 2016

Paulo J. V. Garcia
Paulo J. V. Garcia*
Affiliation:
Centro de Astrofísica da Universidade do Porto, Rua das Estrelas, 4150–762 Porto, Portugal; Isaac Newton Group of Telescopes, Spain; CRAL/Observatoire de Lyon, CNRS UMR 5574, France

Abstract

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We present echelle spectroastrometric observations of the Z CMa system in the Hα region showing its feasibility and underlining the astrophysical importance of the information stored in the spatial width of the spectra.

The Hα profile dating from 12/1991 presents a “bullet” of blue-shifted emission superimposed on the broad absorption component. We interpret this material as an unresolved bullet of gas at the base of the jet. We show that the jet emission fills in the absorption component of the Hα profile and has a wide range of velocities.

Type
VII. Environments of Young Binaries - Direct Imaging
Information
Symposium - International Astronomical Union , Volume 200: The Formation of Binary Stars , 2001 , pp. 275 - 279
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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