Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-23T17:07:18.736Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

Bradt, H.V., Doxsey, R.E., and Jernigan, J.G. 1978, IAU/CoSPAR Symp., CSR-P-78-54 Google Scholar
Dachs, J. 1980, Second European IUE Conference, ESA SP-157, 139 Google Scholar
Doazan, V., Kuhi, L.V., and Thomas, R.N. 1980, Ap.J.(Lett.), 235, L17 Google Scholar
Elias, J., Lanning, H., and Neugebauer, G. 1978, P.A.S.P., 84, 697 CrossRefGoogle Scholar
Ferrari-Toniolo, M., Persi, P., and Viotti, R. 1978, M.N.R.A.S., 185, 841 Google Scholar
Hartmann, L. 1978, Ap.J., 224, 520 Google Scholar
Henrichs, H.F., Hammerschlag-Hensberge, G., and Lamers, H.J.G.L.M. 1980, Second European IUE Conference ESA SP-157, 147 Google Scholar
Maraschi, L., Treves, A., and Van den Heuvel, E.P.J. 1976, Nature, 259, 292 Google Scholar
Oda, M., 1980, IAU Circular No. 3527 Google Scholar
Persi, P., Ferrari-Toniolo, M., and Grasdalen, G.L. 1980, Astron. Astrophys. 92, 238 Google Scholar
Poeckert, R., and Marlborough, J.M. 1978, Ap.J. Suppl. Series, 38, 229 Google Scholar
Slettebak, A., and Snow, T.P. 1978, Ap.J.(Lett.), 224, L127 Google Scholar