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Title of Journal: Astrophys Space Sci

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Abbravation: Astrophysics and Space Science

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Kluwer Academic Publishers

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DOI

10.1016/0034-3331(72)90030-9

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1572-946X

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Xrays from the Symbiotic Star RX Pup

Authors: Gerardo J M Luna J L Sokoloski Roberto D D Costa
Publish Date: 2006/07/18
Volume: 304, Issue: 1-4, Pages: 283-285
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Abstract

We describe Xray and optical observations of the symbiotic star RX Pup From low resolution optical spectra we obtain a reddening for RX Pup of EB−V=079 We use the neutral column density corresponding to this reddening as a lower limit for the Xray spectra fits The Xray spectra can be fitted with either a twotemperarure thermal plasma model or a singletemperature plasma plus a narrow line at ≈055 keV each modified by interstellar absorption The RX Pup Xray flux is not variable within the observation exposure time suggesting that unlike in most CVs an accretion disk boundary layer does not contribute significantly to the Xray flux Instead the Xray emission may come from shockheated gas further away from the compact object

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