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Searches for diffuse X-ray emission around millisecond pulsars: An X-ray nebula associated with PSR J2124-3358
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Searches for diffuse X-ray emission around millisecond pulsars: An X-ray nebula associated with PSR J2124-3358
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We report on diffuse X-ray emission associated with the nearby solitary millisecond pulsar PSR J2124-3358 detected with XMM-Newton and Chandra. The emission extends from the pulsar to the northwest by ~0.5 arcmin. The spectrum of the nebular emission can be modeled with a power-law of photon index $2.2\pm0.4$, in line with the emission originating from accelerated particles in the post shock flow. For PSR J0437-4715, PSR J0030+0451 and PSR J1024-0719, which all have spin parameters comparable to that of PSR J2124-3358, no diffuse emission is detected down to a 3-sigma limiting flux of $4-7\times10^{-15}$ ergs s$^{-1}$ cm$^{-2}$.
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Cited by 1 Pith paper
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A NICER view of the millisecond pulsar PSR J2124$-$3358: evidence for a helium atmosphere
X-PSI modeling of NICER/Chandra data for PSR J2124−3358 substantially prefers a helium atmosphere, giving M = 1.8 ± 0.5 M⊙ and Req = 11.7^{+2.6}_{-3.0} km with two slightly non-antipodal hot spots.
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