Energy-resolved pulse profile changes in V 0332+53: Indications of wings in the cyclotron absorption line profile

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Volume 694 (February 2025)

A&A, 694 (2025) A316

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Table 1.

NuSTAR observations and adopted parameters for PFS.

ObsID (shortcut)	Exposure time	Counts ^(a)	Flux ^(b)	Luminosity ^(c)	P_spin	S/N_min/N_bins/N_excl.^(d)
	ks	10⁶ counts	10⁻⁹ erg cm⁻² s⁻¹	10³⁷ erg s⁻¹	s
80102002002 (802)	10.5	8.88	29.6	11	4.375737 ± 0.000016	4/10/0
80102002004 (804)	14.9	6.00	14.7	5.5	4.375775 ± 0.000015	4/16/0
80102002006 (806)	17.0	4.45	9.96	3.7	4.374639 ± 0.000016	4/16/0
80102002008 (808)	18.1	1.45	3.12	1.2	4.377008 ± 0.000008	4/16/0
80102002010 (810)	20.8	0.88	1.65	0.6	4.377090 ± 0.000014	3/16/4
90202031002 (902)	25.2	0.65	1.05	0.4	4.377252 ± 0.000014	3/16/8
90202031004 (904)	25.0	0.52	0.85	0.3	4.377448 ± 0.000014	3/16/3

Notes.

^(a)

Sum of the FPMA and FPMB counts.

^(b)

Absorbed flux in the 3–70 keV.

^(c)

Assuming isotropic flux emission at a distance of 5.6 kpc. The bolometric correction is of the order of few percent and is ignored.

^(d)

Minimum signal-to-noise ratio, number of phase bins in the pulse profile, and number of excluded highest-energy bins in the PFS.

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