Hydrodynamical simulations of the jet in the symbiotic star(10)

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 th

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theobservedspectrumandbecause uorescenceisnotin-cludedinourmodels.InthecaseofRAqr,althoughthisemissionhasbeenassociatedwiththecentralsource,ourmodelingshowsthatitisconsistentwithbeingproducedbyjetknotsveryclosetothelatter,becausetheirsepa-rationinourmodeliswellbelowtheangularresolutionofChandra.

Usingourcurrentmodelswhichwerebuiltto ttheopticaldataofthejetinMWC560weareabletoexplainsomeoftheimportantcharacteristicsofX-rayemissionfromjetsinMWC560andothersymbioticstars.Theresultsofthisstudydemonstratethegreatpotentialoffuturenumericalsimulationsofpulsedjetswhichhavebeen ne-tunedtospeci csourcepropertiesforunder-standingthejetphenomenoninsymbioticstars.Fur-Anders,E.,Grevesse,N.1989,GeCoA53,197

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thermore,wehopethatthisstudywillinspirenewandmoresensitiveobservationsofX-rayemissionfromjetsinsymbioticstars.

Weacknowledgehelpfulandimprovingcommentsandsuggestionsbythereferee.Thehydrodynamicalsimula-tionswereperformedattheHighPerformanceComput-ingCenterStuttgart,Germany.ThisworkwaspartiallyfundedbyNASA/CHANDRAgrantsGO3-4019XandGO4-5163Z,andNASA/STScIgrantHST-GO-10317.01-A.TheresearchdescribedinthispublicationwascarriedoutattheJetPropulsionLaboratory,CaliforniaInsti-tuteofTechnology,underacontractwiththeNationalAeronauticsandSpaceAdministration.

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