SIMBAD references

2007ApJ...662..988P - Astrophys. J., 662, 988-997 (2007/June-3)

The X-ray structure and spectrum of the pulsar wind nebula surrounding PSR B0540-69.3.

PETRE R., HWANG U., HOLT S.S., SAFI-HARB S. and WILLIAMS R.M.

Abstract (from CDS):

We present the first spatially resolved spectral study of an extragalactic pulsar wind nebula (PWN), that surrounding the 50 ms pulsar B0540-69.3 in the Large Magellanic Cloud, using the ACIS instrument on board the Chandra X-ray Observatory. The spectral properties of the PWN change at a radius of ∼5", corresponding to a shell detected optically in [O III]. Within this radius, the spectra are well characterized by a simple power law, whose spectral index varies strongly with radius, so that the effective size of the nebula decreases with increasing photon energy. These X-ray measurements support the idea that the [O III] shell represents an outer skin surrounding the wind nebula, analogous to that seen in the Crab Nebula. We use the size-energy relation and radial variability of the X-ray spectral index to estimate PWN parameters, including the radial dependence of the magnetic field, and the average ratio of electromagnetic to particle flux.

Abstract Copyright:

Journal keyword(s): ISM: Individual: Alphanumeric: 0540-69.3 - ISM: Supernova Remnants - X-Rays: General

Simbad objects: 11

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2021.02.26-03:11:37

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