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AKARI/IRC Broadband Mid-Infrared Data as an Indicator of the Star-Formation Rate

机译:AKARI / IRC宽带中红外数据作为恒星形成率的指标

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AKARI/InfraredCamera(IRC)PointSourceCatalogprovidesalargeamountoffluxdataatS9W(9$$mu$$m)andL18W(18$$mu$$m)bands.WiththegoalofconstructingStar-FormationRate(SFR)calculationsusingIRCdata,weanalyzedanIRselectedGALEX-SDSS-2MASS-AKARI(IRC/Far-InfraredSurveyor)sampleof153nearbygalaxies.Thefar-infraredfluxeswereobtainedfromAKARIdiffusemapstocorrectanunderestimationforextendedsourcesraisedbythepoint-spreadfunctionphotometry.SFRsofthesegalaxieswerederivedbythespectralenergydistributionfittingprogramCIGALE.Inspiteofcomplicatedfeaturescontainedinthesebands,boththeS9WandL18WemissioncorrelatewiththeSFRofgalaxies.TheSFRcalibrationsusingS9WandL18Warepresentedforthefirsttime.ThesecalibrationsagreewellwithpreviousworksbasedonSpitzerdatawithinthescatters,andshouldbeapplicabletodust-richgalaxies.
机译:AKARI / InfraredCamera(IRC)点源目录在S9W(9 $$ mu $$ m)和L18W(18 $$ mu $$ m)波段提供了大量的流量数据。使用IRC数据构建目标星形成率(SFR)的方法,我们分析了IR选定的GALEX-SDSS(2MASS) sampleof153nearbygalaxies.Thefar-infraredfluxeswereobtainedfromAKARIdiffusemapstocorrectanunderestimationforextendedsourcesraisedbythepoint-spreadfunctionphotometry.SFRsofthesegalaxieswerederivedbythespectralenergydistributionfittingprogramCIGALE.Inspiteofcomplicatedfeaturescontainedinthesebands,boththeS9WandL18WemissioncorrelatewiththeSFRofgalaxies.TheSFRcalibrationsusingS9WandL18Warepresentedforthefirsttime.ThesecalibrationsagreewellwithpreviousworksbasedonSpitzerdatawithinthescatters,andshouldbeapplicabletodust-richgalaxies。

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