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Infrared Emission from Four be Stars Optical Counterparts of Galactic X-Ray Sources

Published online by Cambridge University Press:  14 August 2015

P. Persi ,
M. Ferrari-Toniolo  and
G.L. Grasdalen
P. Persi
Affiliation:
Istituto Astrofisica Spaziale CNR Frascati, Italy
M. Ferrari-Toniolo
Affiliation:
Istituto Astrofisica Spaziale CNR Frascati, Italy
G.L. Grasdalen
Affiliation:
University of Wyoming Laramie, USA

Abstract

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Preliminary results of our infrared observations from 2.3 up to 10 and 20 microns of the Be-X-ray stars X Per, γ Cas and HDE 245770, indicate the presence of an ionized circumstellar disk with an electron density law of the type ne ∝ r−3.5. x Per and γ Cas show besides, variable infrared excess at 10μ suggesting variability in the stellar wind. LS I+65°010 presents an anomalous infrared energy distribution for a Be star.

Type
IV. Infrared Observations
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 247 - 251
Copyright
Copyright © Reidel 1982 

References

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