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2MASX J12004342-2050020

Observation

Spectrum ID103884059_sp1
Alt nameISZ 96
z0.0624
RA, Dec180.1810, -20.8337
MJD61068.74
SNR/Å B/R17.3/28.6
Obs Airmass1.02
SMSS ID103884059
Closest SMSS8.75'', 103884060
SMSS Mean r6"ap15.5 ± 0.0
2MASS Kext11.5 ± 0.1

AGN Properties

Spectrum TypeSy 2
Quality Flaggood
AGN referencePGC
MW E(B−V)0.044
Power law αν0.30 ± 0.11
log L5100,AGN43.60 ± 0.02
log HβBr/[O III]
log ML5100/M
log M/M
log M/M
log M[O III]/M

Spatial extraction & sky subtraction region

Spatial plot

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

Spectrum decomposition

Emission line measurements

Linelog L (erg s⁻¹)FWHM (km s⁻¹)σ (km s⁻¹)EW (Å)
Hγ Narrow
Hγ Broad
[O III] 436439.95 ± 0.30646 ± 62274 ± 250.79 ± 0.36
He II Narrow40.41 ± 0.11646 ± 62274 ± 252.69 ± 0.39
He II Broad41.38 ± 0.0715483 ± 626575 ± 2525.52 ± 1.98
Hβ Narrow40.72 ± 0.10690 ± 63408 ± 266.05 ± 0.60
Hβ Broad
[O III] 500741.91 ± 0.01690 ± 63408 ± 2699.20 ± 0.72
He I Narrow40.01 ± 0.17646 ± 62274 ± 251.82 ± 0.40
He I Broad
[O I] 630040.47 ± 0.05646 ± 62274 ± 256.07 ± 0.45
Hα Narrow41.88 ± 0.01646 ± 62274 ± 25122.31 ± 0.69
Hα Broad
[N II] 658541.63 ± 0.01646 ± 62274 ± 2568.81 ± 0.68
[S II] 671841.05 ± 0.02646 ± 62274 ± 2526.90 ± 0.59
[S II] 673241.20 ± 0.01646 ± 62274 ± 2538.24 ± 0.60

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 SNR0.00
Hβ Broad SNR0.00
Hγ Broad SNR0.00
AGN frac0.42
Host frac0.58
log L5100,Host43.74
Fe II/Hβ
Fe II/[O III]0.17

Quality flags

spurious_hab/hbb1.0/0
l51001
balmer2
balmer_snr2
hb_width2
balmer_width2

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