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Non-Equilibrium Ionization State of a Warm-Hot Intergalactic Medium

机译:温热星际介质的非平衡电离态

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Thetimeevolutionoftheionizationstateofmetalsincosmicbaryonsisconsideredinacosmologicalcontextwithouttheassumptionofionizationequilibrium.Wefindthatasignificantfractionofionizedoxygen(OVIIandOVIII)inawarma€“hotintergalacticmedium(WHIM)isnotintheionizationequilibriumstateataredshiftof$$zsimeq0$$.WealsoinvestigatetheeffectonthedetectabilityandobservablesofWHIMasaconsequenceofsuchadeviationfromionizationequilibrium.ItisfoundthatthedetectabilityofWHIMisnotalteredverymuchboththroughitsemissionandabsorptionsignatures,butthelineratiosbetweenOVIIandOVIIIaresignificantlydifferentfromthoseintheionizationequilibriumstate.
机译:Thetimeevolutionoftheionizationstateofmetalsincosmicbaryonsisconsideredinacosmologicalcontextwithouttheassumptionofionizationequilibrium.Wefindthatasignificantfractionofionizedoxygen(OVIIandOVIII)inawarma€“hotintergalacticmedium(WHIM)isnotintheionizationequilibriumstateataredshiftof $$ zsimeq0 $$。WealsoinvestigatetheeffectonthedetectabilityandobservablesofWHIMasaconsequenceofsuchadeviationfromionizationequilibrium.ItisfoundthatthedetectabilityofWHIMisnotalteredverymuchboththroughitsemissionandabsorptionsignatures,butthelineratiosbetweenOVIIandOVIIIaresignificantlydifferentfromthoseintheionizationequilibriumstate。

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