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空间科学学报 2012
DustAcousticWaveinDustyPlasmasWithStreamingIonsUnderUltravioletIrradiation, PP. 191-196 Keywords: Dustyplasma,Solitarywave,Ultravioletirradiation,Streamingion Abstract: Thereductiveperturbationmethodisappliedtoinvestigatethedustacousticsolitonindustyplasmaswithstreamingionsunderultravioletirradiationtheoreticallyandnumerically.Theself-consistentdustchargevariationistakenintoaccount.Itisshownthattheultravioletirradiationcansignificantlylowerthemagnitudeofthedustnegativecharge,andionstreamingvelocityfirstlyraisethemagnitudeofthedustnegativechargeandthenlowerit.Withthegrowthof(Ultraviolet)UVphotofluxorionstreamingvelocity,thephasevelocityandwidthofthesolitarywavesdecrease,whereasitsamplitudeincreases.
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