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

PARON, S., DUBNER, G., REYNOSO, E.

Malargue (Mendoza)

Congreso; 50a. Reunión Asociación Argentina de Astronomía; 2007

Observatorio Pierre Auger-AAA

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--1lines (beams of 45" and 23" respectively). We discovered a compact molecular clump near theradio and X-ray maxima and calculated its physical parameters. From the comparison with ChandraX-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.