SNR Puppis A: molecular gas possibly associated with the brightest X-ray feature

S. PARON, G. DUBNER, E. REYNOSO

Malargüe, Mendoza

Congreso; 50 Reunión Anual de la Asociación Argentina de Astronomía; 2007

We analize the 12CO emission towards the brightest X-ray knot in the supernova remnant (SNR) Puppis A. The observations were performed with the SEST telescope in the 12CO J=1--0 and 2--1 lines (beams of 45" and 23" respectively). We discovered a compact molecular clump near the radio and X-ray maxima and calculate its physical parameters. From the comparison with Chandra X-ray data we conclude that this molecular clump lies in front of Puppis A along the line of sight. The possibilities of a recent interaction between the SNR and the molecular gas are analyzed.