Chandra Observation of SNR N49B in the Large Magellanic Cloud

Details Chandra Observation of SNR N49B in the Large Magellanic Cloud Chandra Observation of SNR N49B in the Large Magellanic Cloud

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.1506p&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #15.06; Bulletin of the American Astronomical Society, Vol. 34, p.665

Astronomy and Astrophysics

Astronomy

Scientific paper

The supernova remnant (SNR) N49B in the Large Magellanic Cloud has been observed with the Advanced CCD Imaging Spectrometer (ACIS) on board Chandra X-Ray Observatory. The superb angular resolution of the Chandra/ACIS resolves complex filaments and knots across the SNR. These bright features are soft (typically E < 2 keV) and no obvious hard continuum is evident. We present the equivalent width (EW) images for the atomic species O, Ne, and Mg. The EW images indicate the presence of Mg-rich ejecta material around the central regions of the SNR. This result implies the metal-rich ejecta are still important in N49B although the derived Sedov age is relatively old. The low EWs for the circumferential shell-like filaments suggest that these bright features are emission from the shocked circumstellar medium rather than from metal-rich ejecta. Spatially-resolved spectra extracted from various regions over the SNR confirm the abundance distribution as implied by the EW maps. The regional spectra imply significant variations in the fitted absorbing column, plasma temperature, and the ionization state across the SNR. These results indicate that N49B is interacting with spatially associated dense molecular clouds.

Affiliated with

Also associated with

No associations

Rating

Chandra Observation of SNR N49B in the Large Magellanic Cloud does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Chandra Observation of SNR N49B in the Large Magellanic Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chandra Observation of SNR N49B in the Large Magellanic Cloud will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1717478