LEDA 352912

Observation

Spectrum ID	471938111_sp1
Alt name	g0612049-614400
z	0.0357
RA, Dec	93.0204, -61.7333
MJD	60290.61
SNR/Å B/R	6.5/14.9
Obs Airmass	1.16
SMSS ID	471938111
Closest SMSS	1.78'', 2672432882
SMSS Mean r_6"ap	16.9 ± 0.1
2MASS K_ext	12.2 ± 0.1

AGN Properties

Spectrum Type	Sy 2
Quality Flag	good
AGN reference	6dFGS
MW E(B−V)	0.040
Power law α_ν	-1.12 ± 0.04
log L_5100,AGN	42.63 ± 0.01
log Hβ_Br/[O III]	—
log M_L5100/M_☉	—
log M_Hα/M_☉	—
log M_Hβ/M_☉	—
log M_{[O III]}/M_☉	—

Spatial extraction & sky subtraction region

Spaxel scale: 1 arcsec² — Flux units: erg s⁻¹ cm⁻² Å⁻¹
Apertures: object (solid), background (dashed)

Spectrum decomposition

Emission line measurements

Line	log L (erg s⁻¹)	FWHM (km s⁻¹)	σ (km s⁻¹)	EW (Å)
Hγ Narrow	—	—	—	—
Hγ Broad	—	—	—	—
[O III] 4364	—	—	—	—
He II Narrow	38.84 ± 0.26	261 ± 62	109 ± 25	0.78 ± 0.40
He II Broad	—	—	—	—
Hβ Narrow	39.18 ± 0.20	480 ± 63	164 ± 25	1.76 ± 0.38
Hβ Broad	—	—	—	—
[O III] 5007	39.45 ± 0.08	480 ± 63	164 ± 25	3.29 ± 0.42
He I Narrow	—	—	—	—
He I Broad	39.58 ± 0.10	1354 ± 62	575 ± 25	5.14 ± 0.70
[O I] 6300	38.93 ± 0.15	261 ± 62	109 ± 25	1.24 ± 0.29
Hα Narrow	40.18 ± 0.01	261 ± 62	109 ± 25	22.92 ± 0.30
Hα Broad	—	—	—	—
[N II] 6585	39.90 ± 0.02	261 ± 62	109 ± 25	11.90 ± 0.33
[S II] 6718	39.54 ± 0.04	261 ± 62	109 ± 25	5.32 ± 0.34
[S II] 6732	39.52 ± 0.04	261 ± 62	109 ± 25	5.08 ± 0.33

All narrow line widths are tied to narrow [O III] 5007Å. [O III] 5007Å and narrow Hβ include a second narrow component not tied to other narrow lines.

Emission summary

Hα Broad SNR	0.46
Hβ Broad SNR	0.00
Hγ Broad SNR	0.00
AGN frac	0.77
Host frac	0.23
log L_5100,Host	42.11
Fe II/Hβ	—
Fe II/[O III]	—

Quality flags

`spurious_hab/hbb`	0.0/0
`l5100`	0
`balmer`	2
`balmer_snr`	2
`hb_width`	2
`balmer_width`	2

Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.