Discovery of the luminous X-ray ignition eRASSt J234402.9−352640 - I. Tidal disruption event or a rapid increase in accretion in an active galactic nucleus?

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Table 7.

Results of fitting the optical spectra of J234402.

Model parameter ^(a)	Value ^(b)	1σ
Line flux	(10⁻¹⁶ erg cm⁻² s⁻¹)

f(Hβ_VB)	56.4	1.8
f(Hβ_B)	12.8	1.4
f(Hβ_N)	4.6	0.7
f(Hα_VB)	80.2	1.5
f(Hα_B)	64.4	1.4
f(Hα_N)	28.3	0.8
f([OIII]λ5007)	24.6	0.3
f([NII]λ6585)	19.0	0.4
f([SII]λ6716)	2.5	0.2

Line width	(km s⁻¹)

FHWM(Hβ_VB)	4684	141
FHWM(Hβ_B)	1561	137
FHWM(Hβ_N)	406	39
FWHM(Hα_VB)	5942	119
FWHM(Hα_B)	980	15
FWHM(Hα_N)	465	23
FWHM([OIII]λ5007)	169	3

Continuum slope	(−)
α	2.52	0.01

Notes.

^(a)

The parameter α represents the slope of the power-law, f_λ ∝ λ^−α, fit to the continuum over the full wavelength range available in each spectrum.

^(b)

All values represent the weighted average for fits to the four individual spectra.

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