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Near-Ultraviolet and Visible Spectroscopy of HAYABUSA Spacecraft Re-Entry

机译:HAYABUSA航天器重新进入的近紫外和可见光谱

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HAYABUSAisthefirstspacecraftevertolandonandliftofffromanycelestialbodyotherthanthemoon.Themission,whichreturnedasteroidsamplestotheEarthwhileovercomingvarioustechnicalhurdles,endedon2010June13,withtheplannedatmosphericre-entry.Inordertosafelydeliverthesamplereturncapsule,theHAYABUSAspacecraftendedits7-yearjourneyinabrilliant``artificialfireball''overtheAustraliandesert.Spectroscopicobservationwascarriedoutinthenear-ultravioletandvisiblewavelengthsbetween3000?…and7500?…at3a€“20?…resolution.Approximately100atomiclinessuchasFei,Mgi,Nai,Ali,CrI,Mni,Nii,Tii,Lii,Zni,Oi,andNiwereidentifiedfromthespacecraft.ExoticatomssuchasCui,Moi,XeiandHgiwerealsodetected.AstrongLiiline(6708?…)ataheightof$$sim$$55kmoriginatedfromtheonboardLi-Ionbatteries.TheFeOmoleculebandsataheightof$$sim$$63kmwereprobablyformedinthewakeofthespacecraft.Theeffectiveexcitationtemperatureasdeterminedfromtheatomiclinesvariedfrom4500Kto6000K.TheobservednumberdensityofFeiwasabout10timesmoreabundantthanMgiafterthespacecraftexplosion.N$$_{2}^{+}$$($$1^-$$)bandsfromashocklayerandCNvioletbandsfromthesamplereturncapsule'sablatingheatshieldweredominantmolecularbandsinthenear-ultravioletregionof3000a€“4000?….OH($$A$$a€“$$X$$)bandwaslikelytoexistaround3092?….AstrongshocklayerfromtheHAYABUSAspacecraftwasrapidlyformedatheightsbetween93kmand83km,whichwasconfirmedbydetectionofN$$_{2}^{+}$$($$1^-$$)bandswithavibrationtemperatureof$$sim$$13000K.Gray-bodytemperatureofthecapsuleataheightof$$sim$$42kmwasestimatedtobe$$sim$$2437Kwhichismatchedtoatheoreticalprediction.ThefinalmessageoftheHAYABUSAspacecraftanditssamplereturncapsulearediscussedthroughourspectroscopy.
机译:HAYABUSAisthefirstspacecraftevertolandonandliftofffromanycelestialbodyotherthanthemoon.Themission,whichreturnedasteroidsamplestotheEarthwhileovercomingvarioustechnicalhurdles,endedon2010June13,withtheplannedatmosphericre-entry.Inordertosafelydeliverthesamplereturncapsule,theHAYABUSAspacecraftendedits7-yearjourneyinabrilliant``artificialfireball''overtheAustraliandesert.Spectroscopicobservationwascarriedoutinthenear-ultravioletandvisiblewavelengthsbetween3000?... and7500?... at3a€“20?... resolution.Approximately100atomiclinessuchasFei,MGI,奈,阿里,国际广播电台, MNI,哥哥,TII,吕叔湘,Zni,爱,andNiwereidentifiedfromthespacecraft.ExoticatomssuchasCui,莫伊,XeiandHgiwerealsodetected.AstrongLiiline(6708?...)ataheightof $$ SIM $$ 55kmoriginatedfromtheonboardLi-Ionbatteries.TheFeOmoleculebandsataheightof $$ SIM $$ 63kmwereprobablyformedinthewakeofthespacecraft.Theeffectiveexcitationtemperatureasdeterminedfromtheatomiclinesvariedfrom4500Kto6000K.TheobservednumberdensityofFeiwasabout10timesmoreabundantthanMgiafterthespacecraftexplosi N。$$ _ {2} ^ {+} $$($$ 1 ^-$$)的带是来自冲击层的,而样品返回胶囊的消融热屏蔽的聚醚分子带的聚氯乙烯带则在3000-4000欧元附近。OH。($$ A $ a $$$$ X $$)可能在3092年左右存在一个带?……。来自HAYABUS航天器的强震层迅速形成了93公里至83公里之间的高度,通过检测到N $$ _ {2} ^ {+} $$($$ ^-$$)个带确认的温度,测得的温度,模拟的温度是$ sim于$$ K到$ 3000的$$ sim {$$ ^^-$$},证实了$ 437到$ 437的温度。通过光谱学讨论了HAYABUS航天器的最终消息及其样品返回舱。

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