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 4.

Comparison of best-fitting values for the red and blue peaks of the PFS versus phase-resolved analysis of count excesses.

	PF analysis			Excess counts analysis				Spectral analysis

ObsID	Energy (keV)	Sigma (keV)	# of counts	Energy (keV)	Sigma (keV)	# of counts	χ²/d.o.f.	# of counts
Red Peak

802	25.10 $_{- 0.20}^{+ 0.40}$ $^{+0.40}_{-0.20}$	$0 . 94_{- 0.18}^{+ 0.18}$ $0.94_{-0.18}^{+0.18}$	710 ± 210	$24 . 64_{- 0.25}^{+ 0.24}$ $24.64_{-0.25}^{+0.24}$	$1 . 08_{- 0.24}^{+ 0.19}$ $1.08_{-0.24}^{+0.19}$	1500 ± 270	11.15 / 15	3600 ± 600
804	$25 . 79_{- 0.12}^{+ 0.12}$ $25.79_{-0.12}^{+0.12}$	$1 . 43_{- 0.11}^{+ 0.11}$ $1.43_{-0.11}^{+0.11}$	3170 ± 350	$25 . 13_{- 0.25}^{+ 0.27}$ $25.13_{-0.25}^{+0.27}$	$1 . 72_{- 0.25}^{+ 0.27}$ $1.72_{-0.25}^{+0.27}$	$2500_{- 270}^{+ 360}$ $2500_{-270}^{+360}$	20.72 / 15	8200 ± 360
806	$25 . 78_{- 0.08}^{+ 0.08}$ $25.78_{-0.08}^{+0.08}$	$1 . 20_{- 0.06}^{+ 0.06}$ $1.20_{-0.06}^{+0.06}$	2410 ± 190	$25 . 04_{- 0.22}^{+ 0.20}$ $25.04_{-0.22}^{+0.20}$	$1 . 64_{- 0.21}^{+ 0.27}$ $1.64_{-0.21}^{+0.27}$	$2650_{- 270}^{+ 330}$ $2650_{-270}^{+330}$	10.08 / 15	7200 ± 1000
808	$26 . 62_{- 0.09}^{+ 0.09}$ $26.62_{-0.09}^{+0.09}$	$1 . 79_{- 0.09}^{+ 0.09}$ $1.79_{-0.09}^{+0.09}$	2050 ± 100	$25 . 00_{- 0.63}^{+ 0.43}$ $25.00_{-0.63}^{+0.43}$	$2 . 22_{- 0.47}^{+ 0.94}$ $2.22_{-0.47}^{+0.94}$	$1350_{- 270}^{+ 450}$ $1350_{-270}^{+450}$	18.09 / 15	< 1000

Blue Peak

802	$30 . 49_{- 0.11}^{+ 0.11}$ $30.49^{+0.11}_{-0.11}$	1.63 $_{- 0.10}^{+ 0.12}$ $^{+0.12}_{-0.10}$	2000 ± 160	$31 . 40_{- 0.38}^{+ 0.36}$ $31.40_{-0.38}^{+0.36}$	$2 . 40_{- 0.38}^{+ 0.56}$ $2.40_{-0.38}^{+0.56}$	$2160_{- 270}^{+ 450}$ $2160_{-270}^{+450}$	22.34 / 21	5000 ± 800
804	$30 . 43_{- 0.09}^{+ 0.09}$ $30.43_{-0.09}^{+0.09}$	$1 . 44_{- 0.08}^{+ 0.08}$ $1.44_{-0.08}^{+0.08}$	2110 ± 150	$30 . 71_{- 0.38}^{+ 0.33}$ $30.71_{-0.38}^{+0.33}$	$2 . 05_{- 0.35}^{+ 0.39}$ $2.05_{-0.35}^{+0.39}$	1530 ± 270	20.86 / 21	3600 ± 270
806	$30 . 28_{- 0.11}^{+ 0.11}$ $30.28_{-0.11}^{+0.11}$	$1 . 68_{- 0.14}^{+ 0.14}$ $1.68_{-0.14}^{+0.14}$	960 ± 60	$30 . 68_{- 0.33}^{+ 0.29}$ $30.68_{-0.33}^{+0.29}$	$1 . 92_{- 0.33}^{+ 0.47}$ $1.92_{-0.33}^{+0.47}$	$1440_{- 180}^{+ 450}$ $1440_{-180}^{+450}$	13.74 / 21	2000 ± 270
808	$31 . 70_{- 0.18}^{+ 0.30}$ $31.70^{+0.30}_{-0.18}$	$0 . 98_{- 0.17}^{+ 0.17}$ $0.98_{-0.17}^{+0.17}$	200 ± 40	$32 . 90_{- 0.43}^{+ 0.55}$ $32.90_{-0.43}^{+0.55}$	$1 . 63_{- 0.41}^{+ 0.60}$ $1.63_{-0.41}^{+0.60}$	$400_{- 100}^{+ 100}$ $400_{-100}^{+100}$	17.03 / 21	630 ± 200

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