Fragmentation and molecular outflows in theIRDC core G34.43+00.24 MM1

AREAL, M. B.; ORTEGA, M. E.; ISEQUILLA, N.; PARON, S.

Rosario, Santa Fe - Edición virtual

Congreso; 62° Reunión Anual de la Asociación Argentina de Astronomía; 2020

Asociación Argentina de Astronomía

Massive star formation takes place in molecular hot cores which are the result of the fragmentationof massive clumps. The infrared dark cloud G34.43+00.24, which exhibits a filamentary structure, is located ata distance of about 3.6 kpc. This cloud harbours nine molecular cores, named MM1 through MM9, at differentevolutionary stages. This work presents a study of the internal structure of the core MM1 carried out with highangular resolution observations at 93 GHz obtained from the ALMA database. The radio continuum emissionshows signatures of fragmentation of the core, and the HCO+ J=1?0 emission confirms, with the better angularresolution at the present, the presence of two perpendicular molecular outflows arising from MM1.