The X-Ray Spectral Index measurement of SNR   MSH 15-52 (G 320.4–1.2)

The X-Ray Spectral Index measurement of SNR MSH 15-52 (G 320.4–1.2)
Author(s):
Vandana Batra, Abhishek Sudan, Kumar Ashish, Kamna Bhaskaran, Lakshmi Hariharan
Keywords:
Plerion, spatial variation, spectral index,Supernova remnant
Abstract
The youngest Supernova Remnant MSH 15-52 (G 320.4–1.2) in our Milky Way galaxy, consists of two bright X-ray compact sources within the shell. The strong X-ray pulsations (with a period of 0.150s) of associated pulsar 4U 1509-58 overlaps with another source situated within Hα nebula RCW 89 in SNR, resulting in unusual X-Rays morphology. In this paper, the spectral energy distribution (SED) of SNR MSH 15-52 in the X-Ray region of the electromagnetic spectrum has been analyzed to understand the underlying physical mechanism. The spectral index in the X-ray region is calculated by fitting a power law on the published data of flux density and frequency. The spectral index in the x-ray region comes out to be αx−ray ≈ 0.8841 ± 0.2066 which is found to be in good agreement with the published values. Results also indicate SNR MSH 15- 52 has a harder x-ray spectrum than the Crab Nebula.
Article Details
Unique Paper ID: 155576 Publication Volume & Issue: Volume 9, Issue 1 Page(s): 1127 - 1130
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