A Substellar-Mass Protostar and its Outflow of IRAS 15398-3359 Revealed by Subarcsecond-Resolution Observations of H${}_2$CO and CCH

Yoko Oya, Nami Sakai, Takeshi Sakai +7

Sub-arcsecond ($0{.}^{\prime \prime }5$) images of H${}_2$CO and CCH line emission have been obtained in the $0.8$ mm band toward the low-mass protostar IRAS 15398-3359 in the Lupus 1 cl…