Abstract
ASCA observations of the SNR G347.3-0.5 revealed that the X-ray spectrum
is dominated by nonthermal emission. This puts G347.3-0.5 in the small,
but growing class of SNRs for which the X-ray emission reveals the
presence of extremely energetic electrons accelerated by the SNR shock,
such as in SN 1006. We have obtained new, high-resolution X-ray and
radio data on G347.3-0.5 using the Chandra X-ray Observatory and the
Australia Telescope Compact Array (ATCA). The Chandra observations of
discrete regions along the SNR boundary show very good agreement between
the X-ray and radio morphological structure, providing strong evidence
that the same population of electrons is responsible for the synchrotron
emission in both bands. We present spectral index information from both
observations which will provide strong constraints on models for the
acceleration process in the SNR shock. The X-ray observations also
support earlier indications that the spectral index of the nonthermal
emission varies considerably across the remnant. Finally, we present
spectral results on the X-ray point source in the central region of the
SNR, for which we find no radio counterpart, and we comment on possible
interpretations as an associated neutron star. This work was supported
in part from Chandra grant G00-1123X.
| Original language | English |
|---|---|
| Title of host publication | American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American Astronomical Society April 20 - 23, 2002 Albuquerque Convention Center Albuquerque, New Mexico Meeting ID: APR02 |
| Publication status | Published - 1 Apr 2002 |
| Externally published | Yes |