An in-depth analysis of the variable cyclotron lines in GX 301−2

Open Access

Table 5.

Ratio of cyclotron line energies in recent publications on GX 301−2.

Reference	φ_orb^(a)	Ratio
This work	0.97	1.38 ± 0.07
Ding et al. (2021)	0.09	$1 . 68_{- 0.08}^{+ 0.12}$ $1.68^{+0.12}_{-0.08}$
Nabizadeh et al. (2019)	0.93	$1 . 501_{- 0.029}^{+ 0.032}$ $1.501^{+0.032}_{-0.029}$
Fürst et al. (2018)^(b)	0.67	1.46 ± 0.13
Fürst et al. (2018)^(b)	0.87	$1 . 44_{- 0.10}^{+ 0.11}$ $1.44^{+0.11}_{-0.10}$

Notes.

^(a)

Orbital phase, which is calculated in the same manner as described in the caption of Fig. 1.

^(b)

Fürst et al. (2018) analyze two NuSTAR observations, hence the two separate table entries.

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