A multi-wavelength view of the isolated neutron star eRASSU J065715.3+260428

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Volume 694 (February 2025)

A&A, 694 (2025) A160

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Table 5.

Results of the phase-resolved X-ray spectral analysis.

Model	Phase	N_H	kT₁	R₁^(a)	kT₂	R₂^(a)	ϵ	σ	EW ^(b)	χ_ν²(ν)
		[10²⁰ cm⁻²]	[eV]	[km]	[eV]	[km]	[eV]	[eV]	[eV]
`2BB`	off-pulse	$7 . 3_{- 1.0}^{+ 1.1}$ $7.3^{+1.1}_{-1.0}$	$86_{- 5}^{+ 5}$ $86^{+5}_{-5}$	$3 . 3_{- 0.5}^{+ 0.8}$ $3.3^{+0.8}_{-0.5}$	$212_{- 16}^{+ 18}$ $212^{+18}_{-16}$	$0 . 18_{- 0.04}^{+ 0.06}$ $0.18^{+0.06}_{-0.04}$				0.80(60)
	pulse		$92_{- 5}^{+ 5}$ $92^{+5}_{-5}$	$3 . 0_{- 0.4}^{+ 0.7}$ $3.0^{+0.7}_{-0.4}$	$244_{- 21}^{+ 23}$ $244^{+23}_{-21}$	$0 . 13_{- 0.03}^{+ 0.05}$ $0.13^{+0.05}_{-0.03}$
`2BBGABS`								off-pulse	$2 . 5_{- 2.2}^{+ 2.3}$ $2.5^{+2.3}_{-2.2}$	$87_{- 8}^{+ 8}$ $87^{+8}_{-8}$	$2 . 6_{- 0.8}^{+ 1.4}$ $2.6^{+1.4}_{-0.8}$	$211_{- 18}^{+ 21}$ $211^{+21}_{-18}$	$0 . 18_{- 0.05}^{+ 0.08}$ $0.18^{+0.08}_{-0.05}$	$324_{- 21}^{+ 28}$ $324^{+28}_{-21}$	51	$90_{- 40}^{+ 40}$ $90^{+40}_{-40}$	0.69(56)
								pulse		$96_{- 7}^{+ 7}$ $96^{+7}_{-7}$	$2 . 3_{- 0.5}^{+ 0.9}$ $2.3^{+0.9}_{-0.5}$	$245_{- 23}^{+ 26}$ $245^{+26}_{-23}$	$0 . 13_{- 0.04}^{+ 0.06}$ $0.13^{+0.06}_{-0.04}$	$299_{- 29}^{+ 27}$ $299^{+27}_{-29}$	51	$100_{- 50}^{+ 40}$ $100^{+40}_{-50}$

Notes. We provide 1σ confidence intervals on the best-fit parameters.

^(a)

For the blackbody emission radius at infinity, we assumed a source at a distance of 1 kpc.

^(b)

EW estimated as described in the notes of Table 4.

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