2MASX J07025618-4917442

Observation

Spectrum ID	472370424_sp1
Alt name	g0702562-491744
z	0.0410
RA, Dec	105.7340, -49.2955
MJD	59668.46
SNR/Å B/R	18.1/40.7
Obs Airmass	1.20
SMSS ID	472370424
Closest SMSS	10.94'', 472370423
SMSS Mean r_6"ap	16.2 ± 0.0
2MASS K_ext	12.1 ± 0.1

AGN Properties

Spectrum Type	Sy 1.5
Quality Flag	good
AGN reference	6dFGS
MW E(B−V)	0.066
Power law α_ν	0.49 ± 0.02
log L_5100,AGN	40.88 ± 0.63
log Hβ_Br/[O III]	-0.15 ± 0.49
log M_L5100/M_☉	6.32 ± 0.28
log M_Hα/M_☉	6.99 ± 0.05
log M_Hβ/M_☉	6.71 ± 0.24
log M_{[O III]}/M_☉	6.88 ± 0.06

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	39.33 ± 0.23	339 ± 63	219 ± 66	93.39 ± 57.70
Hγ Broad	—	—	—	—
[O III] 4364	—	—	—	—
He II Narrow	—	—	—	—
He II Broad	—	—	—	—
Hβ Narrow	39.47 ± 0.12	339 ± 63	219 ± 66	178.80 ± 59.72
Hβ Broad	40.05 ^+0.88_−0.09	2386 ± 25	812 ± 25	667.32 ± 86.33
[O III] 5007	40.20 ± 0.04	339 ± 63	219 ± 66	1008.11 ± 66.59
He I Narrow	—	—	—	—
He I Broad	—	—	—	—
[O I] 6300	—	—	—	—
Hα Narrow	39.89 ± 0.03	335 ± 62	141 ± 25	972.70 ± 42.10
Hα Broad	41.05 ± 0.02	3418 ± 98	2007 ± 39	14036.46 ± 212.22
[N II] 6585	39.96 ± 0.03	335 ± 62	141 ± 25	1150.00 ± 44.61
[S II] 6718	—	—	—	—
[S II] 6732	38.72 ± 0.44	335 ± 62	141 ± 25	69.86 ± 39.58

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	4.42
Hβ Broad SNR	1.13
Hγ Broad SNR	0.45
AGN frac	0.00
Host frac	1.00
log L_5100,Host	43.32
Fe II/Hβ	—
Fe II/[O III]	—

Quality flags

`spurious_hab/hbb`	0.0/2
`l5100`	2
`balmer`	1
`balmer_snr`	2
`hb_width`	0
`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.