Spectroscopic and photometric (UBV) observations ofZ CMa were carried out at ESO, La Silla during February 1983 . Photometric variations of the order of a few tenths of magnitude were detected in contrast with its past more variable behavior. The spectrum of Z CMa appears to have a complex structure showing at the same time characteristics of both early (B5-B8) and late (middle F) spectral types. A rather peculiar and variable profile with three different absorption components was observed at the H13 line. From a comparison between the present and the past behavior it seems that the star is now in a relatively quiescent phase.

SPECTROSCOPIC ANO PHOTOMETRIC OBSERVATIONS OF THE HERBIG Be STAR Z CANIS MAJORIS

G. Russo
Membro del Collaboration Group
1984

Abstract

Spectroscopic and photometric (UBV) observations ofZ CMa were carried out at ESO, La Silla during February 1983 . Photometric variations of the order of a few tenths of magnitude were detected in contrast with its past more variable behavior. The spectrum of Z CMa appears to have a complex structure showing at the same time characteristics of both early (B5-B8) and late (middle F) spectral types. A rather peculiar and variable profile with three different absorption components was observed at the H13 line. From a comparison between the present and the past behavior it seems that the star is now in a relatively quiescent phase.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11588/892676
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