  We present the spectroscopic and imaging analysis of a type IIn supernova SN
1995N observed with the Chandra X-ray observatory on 2004 March 27. We compare
the spectrum obtained from our Chandra observation with that of the previous
observation with ASCA in 1998. We find the presence of Neon lines in the
Chandra spectrum that were not reported in the ASCA observation. We see no
evidence of Iron in both epochs. The observed absorption column depth indicates
an extra component over and above the galactic absorption component and is
possibly due to a cool dense shell between the reverse-shock and the contact
discontinuity in the ejecta. The ASCA and the ROSAT observations suggested a
non-linear behavior of the X-ray light curve. However, with the higher spatial
resolution and sensitivity of Chandra, we separate out many nearby sources in
the supernova field-of-view that had additionally contributed to the supernova
flux due to the large Point Spread Function of the ASCA. Taking out the
contribution of those nearby sources, we find that the light curves are
consistent with a linear decline profile. We consider the light curve in the
high energy band separately. We discuss our results in the context of models of
nucleosynthesis and the interaction of the shock waves with the circumstellar
medium in core collapse supernovae.
