IKT 16: the first X-ray confirmed composite SNR in the SMC

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Table 2

Parameters of the best-fit spectral model to putative pulsar and the nebula.

Region	SMC absorption	Power-law photon Index	F _X ^a	F _X ^a	L _X ^b
	10²¹ cm^-2	Γ	0.5–8 keV	2–10 keV	0.5–8 keV

Putative pulsar	5.3	1.11 ± 0.23	16 ± 1	17 ± 2	7.20
Extended nebula	3.4 (f)^c	2.21	2.2 ± 0.2	1.3	1.19
Inner nebula	3.4 (f)^c	2.22	1.6 ± 0.3	1.0	0.78
Outer nebula	3.4 (f)^c	2.18	0.75	0.47 ± 0.63	0.41
West nebula	3.4 (f)^c	1.97	1.4 ± 0.3	0.9	0.67
East nebula	3.4 (f)^c	2.23	0.93	0.55 ± 0.67	0.45

Notes. Errors are quoted at 90% confidence. (f) Parameter fixed for consistency between fit regions.

^(a)

Observed flux in units of 10^-14 erg cm^-2 s^-1;

^(b)

absorption corrected luminosity in units of 10³⁴ erg s^-1 assuming a distance of 60 kpc.

^(c)

SMC absorption for all nebular spectra was frozen to the column density obtained from the XMM-Newton observation .

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