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The peculiar star RX Puppis

Published online by Cambridge University Press:  12 April 2016

M. Kafatos  and
A.G. Michalitsianos
M. Kafatos
Affiliation:
Department of Physics, George Mason Univ., Fairfax, Va., U.S.A.
A.G. Michalitsianos
Affiliation:
Laboratory for Astronomy and Solar Physics, NASA, Goddard Space Flight Center, Greenbelt, Md., U.S.A.

Abstract

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We have obtained the first high dispersion observations of RX Puppis in the wavelength region 1200 - 3200 A with the “International Ultraviolet Explorer” (IUE). The anomalies we observed in lines such as He II, C III], C IV, N III], N IV], 0 III], and Si III], that show split line profiles, Doppler displaced component(s) suggest dynamic activity in circumstellar material that probably has the form of rings and/or gas streamers between the cool giant and the hot companion, the Mg II lines show P-Cygni structure arising in the Mira primary. The continuum cannot be due to a star earlier than A0 II and it may arise in an accretion disk around the hot secondary. Moreover, the line emission requires photoionization either from a hot subdwarf or the inner accretion disk.

Type
Session II – Discussion on Individual Stars
Information
International Astronomical Union Colloquium , Volume 70: The Nature of Symbiotic Stars , 1982 , pp. 203 - 206
Copyright
Copyright © Reidel 1982

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