Hiccup accretion in the swinging pulsar IGR J18245–2452

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Volume 567 (July 2014)

A&A, 567 (2014) A77

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Table 4

Reduced χ² and degrees of freedom of various models for hardness-resolved spectra.

Model/HR^a	<0.25	0.25–0.33	0.33–0.43	0.43–0.70	>0.70

nthcomp	1.192/388	1.312/496	1.178/591	1.029/392	2.063/335
nthcomp+BB	1.053/386	1.100/494	1.034/589	1.042/390	1.161/333
nthcomp+diskBB	1.040/386	1.095/494	1.179/589	1.022/390	1.161/333
nthcomp+PL	1.093/386	1.096/494	1.107/589	1.020/390	1.183/333
Partial covering PL	1.111/387	1.381/495	1.149/590	1.040/391	1.167/334

Exp₁^b	2.75	1.58	3.94	1.57	1.77	ks
Exp₂^b	7.28	7.48	4.92	3.78	2.75	ks

Notes.

^(a)

Hardness ratio (HR) computed as in Fig. 1 for count rates lower than 30 cts/s.

^(b)

Exposures of the EPIC-pn camera in the two observations. The RGS exposures are similar, but not strictly equal because of different screening criteria and different operational window in obs1 and obs2.

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