We report on the combined X-ray and radio observations of the type Ic SN 2002ap , using XMM-Newton ToO observation of M74 and the Giant Metrewave Radio Telescope ( GMRT ) .
We account for the presence of a nearby source in the pre-supernova Chandra field of view in our measurements of the X-ray flux ( 0.3 - 10 KeV ) 5.2 days after the explosion .
The X-ray spectrum is well fitted by a power law spectrum with photon index \alpha = 2.6 .
Our results suggest that the prompt X-ray emission originates from inverse Compton scattering of photospheric thermal emission by energetic electrons .
Radio observations with the GMRT at 610 MHz ( 8 days after the explosion ) and 1420 MHz ( 70 days after the explosion ) are combined with the high frequency VLA observations of SN 2002ap reported by [ Berger et al. , 2002 ] , and the early radiospheric properties of SN 2002ap are compared with similar data from two other supernovae .
Finally , the GMRT radio map reveals four other X-ray sources in the field of view of M74 with radio counterparts .