Atomic and molecular gas interacting with the supernova remnant RCW 103

PARON, SERGIO A.; REYNOSO, ESTELA M.; DUBNER, GLORIA M.; PURCELL, CORMAC

Pucón, Chule

Congreso; 11th Latin American IAU Regional Meeting; 2005

Unión Astronómica Internacional

We present a study of the interstellar medium in an extended region towards the shell-type supernova remnant (SNR) RCW 103, based on HI 21 cm data obtained with the ATCA telescope (Australia) and on observations of the rotational transition J:1-0 of CO and HCO+ performed towards the south of the SNR using the Australian Mopra radiotelescope.  Based on the HI data, a three dimensional visualization of the ambient medium where RCW 103 evolves is presented. From the molecular lines study, we confirm on the basis of the observed changes in molecular abundances that the SNR is physically interacting with a nearby cloud to the south.