Spin measurement of 4U 1543–47 with Insight-HXMT and NICER from its 2021 outburst - A test of accretion disk models at high luminosities

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Table 4

Fitting results with M2 on selected ‘golden’ Insight-HXMT data.

Observation	l_Edd	χ²/DOF
P030402603501	0.50	1219/1048
P030402603502	0.50	1153/1048
P030402603503	0.50	1062/1048
P030402603601	0.50	1243/1048
P030402603602	0.51	1076/1048
P030402603603	0.50	1120/1048
P030402603701	0.48	1181/1048
P030402603702	0.48	1045/1048
P030402603703	0.48	1075/1048
P030402603801	0.49	1086/1048
P030402603802	0.49	1053/1048
P030402603803	0.49	1136/1048
P030402604101	0.46	1147/1048

Notes. ƒ_sc is the scattering fraction, Γ is the photon index, T_in is the inner disk temperature, R_in (R_g) is the inner disk radius in units of gravitational radii R_g, and l_Edd is the disk luminosity in Eddington units.

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