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4189361819791896064

Observation

Spectrum ID299187842_sp2
Alt name4189361819791896064
z0.0760
RA, Dec299.6207, -11.5952
MJD60798.79
SNR/Å B/R12.6/18.1
Obs Airmass1.07
SMSS ID299187842
Closest SMSS3.72'', 299187843
SMSS Mean r6"ap16.5 ± 0.0
2MASS Kext12.9 ± 0.1

AGN Properties

Spectrum TypeSF
Quality Flaggood
AGN referenceAllBRICQS2
MW E(B−V)0.151
Power law αν-0.66 ± 0.03
log L5100,AGN43.52 ± 0.01
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] 4364
He II Narrow
He II Broad40.30 ± 0.262630 ± 621117 ± 252.69 ± 1.14
Hβ Narrow
Hβ Broad
[O III] 500740.75 ± 0.07340 ± 64488 ± 448.33 ± 0.93
He I Narrow
He I Broad
[O I] 630039.76 ± 0.18300 ± 62126 ± 251.18 ± 0.35
Hα Narrow40.30 ± 0.06300 ± 62126 ± 254.26 ± 0.49
Hα Broad
[N II] 658540.76 ± 0.02300 ± 62126 ± 2512.37 ± 0.42
[S II] 671840.06 ± 0.10300 ± 62126 ± 252.52 ± 0.45
[S II] 673240.14 ± 0.12300 ± 62126 ± 253.05 ± 0.61

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 frac0.46
Host frac0.54
log L5100,Host43.60
Fe II/Hβ
Fe II/[O III]2.27

Quality flags

spurious_hab/hbb0.0/0
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.