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

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

Boletín de la Asociación Argentina de Astronomía

Lugar: Buenos Aires; Año: 2007 vol. 50 p. 193 - 196

0571-3285

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 calculated 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.