emissionsfromionizedgas;(4)abouttensourceshaveverylargeinfraredexcesseswith(H-K)>1.5probablyindicativeoftheinflu-encefromtherelatedbrightnebulositywiththelowtemperature;(5)veryfewsourcesareintheupperregionfromtheblackbodylineindicativeofthermalemissionsmainlyfromdustsurrounded.Fromthesourcedistributionsmentionedaboveitcanbeconcludedthatinthenearinfrared(1–3μmregion)theinfraredradiationsofHAeBestarsaremostlyfromcircumstellardiskswithpowerlaw