Radio and X-ray properties of the galactic Supernova Remnants G7.7-3.7 and G344.7-0.1

LOISEAU, N.; GIACANI, E.; SMITH, M.; DUBNER, G.

Bologna (Italia)

Simposio; X-ray Astronomy 2009: present status, multiwavelength approach and future perspectives; 2009

We report on new radio and X-ray observations of two galactic SNRs: G7.7-3.7 andG344.7-0.1. The high resolution, high sensitivity radio data show several new structures in bothremnants. In the X-ray regime, the XMM-Newton data for G7.7-3.7 reveal the existence of thermalsoft X-ray emission coinciding with the radio southern limb of the remnant, and a point-like featurewith a spectrum suggestive of a compact X-ray source or a PWN. In the case of G344.7-0.1, thenew XMM-Newton image shows clumpy features and diffuse emission lling the interior of theremnant. The X-ray spectral investigation inferres enhanced abundances which imply the presenceof SN ejecta in this SNR.