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Subfuors in Orion association

Published online by Cambridge University Press:  23 September 2016

L.G. Gasparian ,
A.S. Melkonian ,
G.B. Ohanian  and
E.S. Parsamian
L.G. Gasparian
Affiliation:
Byurakan Astrophysical Observatory Armenian Academy of Sciences, USSR
A.S. Melkonian
Affiliation:
Byurakan Astrophysical Observatory Armenian Academy of Sciences, USSR
G.B. Ohanian
Affiliation:
Byurakan Astrophysical Observatory Armenian Academy of Sciences, USSR
E.S. Parsamian
Affiliation:
Byurakan Astrophysical Observatory Armenian Academy of Sciences, USSR

Abstract

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Results of spectral and photometric observations of Sugano star = V1143 Ori in brightness minimum and near it are given. Emission lines of HI, CaII, FeI, TiI, TiII and TiO absorption bands are detected. The appearing envelope is observed also in minimum. A brightness increase of Shanalstar V1118 Ori is observed. In its spectrum lines of HI, CaII, FeI, FeII are found, testifying to formation of an envelope.

During the last ten years data on T Tau type stars which have fuor-like outburst-subfuors were obtained. Two such stars were found in Orion association. These are V1118 Ori [1] and V 1143 Ori [2,3]. In recent years, in Byurakan observatory observations of these stars have been made.

Type
III Flare Stars and Related Objects Fuors and Other Non-Stable Objects
Information
Symposium - International Astronomical Union , Volume 137: Flare Stars in Star Clusters, Association and Solar Vicinity , 1990 , pp. 253 - 256
Copyright
Copyright © Kluwer 1990 

References

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