▁ 3 6 ▁is ▁currently ▁on going . ▁In ▁the ▁dense ▁gas ▁at ▁the ▁western ▁edge ▁of ▁RC W ▁ 3 6 , ▁where ▁the ▁far - inf ra red ▁emission ▁is ▁greatest , ▁are ▁found ▁proto stell ar ▁cores , ▁the ▁Her big ▁Har o ▁objects , ▁and ▁an ▁ult ra - comp act ▁H ▁II ▁region . ▁However , ▁more ▁deeply ▁embedded ▁star - formation ▁is ▁obsc ured ▁by ▁dust , ▁so ▁radiation ▁can ▁only ▁escape ▁from ▁the ▁cloud ▁surface ▁and ▁not ▁from ▁the ▁embedded ▁objects ▁themselves . ▁ ▁The ▁H ▁II ▁region ▁is ▁an ▁area ▁around ▁the ▁cluster ▁in ▁which ▁hydro gen ▁atoms ▁in ▁the ▁inter stell ar ▁medium ▁have ▁been ▁ion ized ▁by ▁ult rav io let ▁light ▁from ▁O - ▁and ▁B - type ▁stars . ▁The ▁H ▁II ▁region ▁in ▁RC W ▁ 3 6 ▁has ▁an ▁hour glass ▁morph ology , ▁similar ▁to ▁the ▁shape ▁of ▁H ▁II ▁regions ▁around ▁other ▁young ▁stell ar ▁clusters ▁like ▁W 4 0 ▁or ▁Sh 2 - 1 0 6 . ▁In ▁addition , ▁an ▁ult ra - comp act ▁H ▁II ▁region ▁surr ounds ▁IR AS ▁source ▁ 0 8 5 7 6 − 4 3 3 3 . ▁ ▁Star ▁cluster ▁ ▁Due ▁to ▁the ▁youth ▁of ▁RC W ▁ 3 6 , ▁most ▁of ▁the ▁stars ▁in ▁the ▁cluster ▁are ▁at ▁an ▁early ▁stage ▁of ▁stell ar ▁evolution ▁where ▁they ▁are ▁known ▁as ▁young ▁stell ar ▁objects ▁or ▁pre - main - sequence ▁stars . ▁These ▁stars