Chandra observations of a newly identified supernova remnant AXJ1843.8- 0352 and its surroundings
Abstract
AX J1843.8-0352 is a newly identified SNR whose X-ray emission was first detected by the ASCA Galactic Plane Survey and confirmed by the follow-up observations. With the excellent spatial resolution of Chandra, we found this SNR has twocomponents: a hard diffuse emission and a soft compact emission. The morphology of the hard component is complicated, but roughly an elliptical shape elongated from the north to south, with the mean diameter of about 9 . The spectrum is fitted with a power-law of photon index 2. The east rim is associated with the non-thermal radio sources. Therefore the hard component is probably synchrotron X-rays by energetic electrons accelerated at the shell of the SNR. The soft component shows a peculiar shape with a head of 20 × 30 size and a 30 -long "jet". The spectrum is fitted with a thin thermal plasma model of about 1 keV temperature. The absorption of the soft component is about twice as large as that of the hard component, hence the association of these two components is unclear.
- Publication:
-
34th COSPAR Scientific Assembly
- Pub Date:
- 2002
- Bibcode:
- 2002cosp...34E2466U