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Hydrodynamical simulations of the Jet in the Symbiotic Star MWC 560. III. application to x-ray jets in symbiotic stars

Show simple item record Stute, Matthias Sahai, Raghvendra 2008-11-10T18:09:39Z 2008-11-10T18:09:39Z 2007-08-10
dc.identifier.citation The Astrophysical Journal, 665:698–706, 2007 August 10 DOI: 10.1086/518930 en_US
dc.identifier.clearanceno 07-1292
dc.description.abstract In Papers I and II in this series, we presented hydrodynamical simulations of jet models with parameters representative of the symbiotic system MWC 560. These were simulations of a pulsed, initially underdense jet in a high-density ambient medium. Since the pulsed emission of the jet creates internal shocks and since the jet velocity is very high, the jet bow shock and the internal shocks are heated to high temperatures and should therefore emit X-ray radiation. In this paper, we investigate in detail the X-ray properties of the jets in our models. We have focused our study on the total X-ray luminosity and its temporal variability, the resulting spectra, and the spatial distribution of the emission. Temperature and density maps from our hydrodynamical simulations with radiative cooling presented in the second paper are used, together with emissivities calculated with the atomic database ATOMDB. The jets in our models show extended and variable X-ray emission, which can be characterized as a sum of hot and warm components with temperatures that are consistent with observations of CH Cyg and R Aqr. The X-ray spectra of our model jets show emission-line features that correspond to observed features in the spectra of CH Cyg. The innermost parts of our pulsed jets show iron line emission in the 6.4–6.7 keV range, which may explain such emission from the central source in R Aqr. We conclude that MWC 560 should be detectable with Chandra or XMM-Newton, and such X-ray observations will prove crucial for understanding jets in symbiotic stars. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher The American Astronomical Society en_US
dc.subject binaries en_US
dc.subject circumstellar matter en_US
dc.subject hydrodynamics en_US
dc.title Hydrodynamical simulations of the Jet in the Symbiotic Star MWC 560. III. application to x-ray jets in symbiotic stars en_US
dc.type Article en_US

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