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LEDA 595026

Observation

Spectrum ID306475963_sp1
Alt nameg1439442-394242
z0.0840
RA, Dec219.9339, -39.7115
MJD60378.73
SNR/Å B/R18.3/27.0
Obs Airmass1.01
SMSS ID306475963
Closest SMSS9.83'', 306475962
SMSS Mean r6"ap16.6 ± 0.1
2MASS Kext12.5 ± 0.1

AGN Properties

Spectrum TypeSy 1.5+
Quality Flaggood
AGN reference6dFGS
MW E(B−V)0.081
Power law αν-1.69 ± 0.13
log L5100,AGN42.77 ± 0.07
log HβBr/[O III]<0.30
log ML5100/M
log M/M8.10 ± 0.07
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 Broad
Hβ Narrow
Hβ Broad<40.96
[O III] 500740.66 ± 0.06344 ± 63343 ± 8439.63 ± 3.25
He I Narrow
He I Broad40.09 ± 0.283004 ± 621276 ± 2511.16 ± 3.97
[O I] 630039.87 ± 0.16330 ± 62140 ± 256.97 ± 1.35
Hα Narrow40.34 ± 0.05330 ± 62140 ± 2520.61 ± 1.26
Hα Broad41.42 ± 0.039399 ± 6363565 ± 32249.88 ± 8.92
[N II] 658540.58 ± 0.03330 ± 62140 ± 2536.05 ± 1.37
[S II] 671840.01 ± 0.13330 ± 62140 ± 259.68 ± 1.89
[S II] 673240.16 ± 0.08330 ± 62140 ± 2513.69 ± 1.67

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 SNR1.51
Hβ Broad SNR0.00
Hγ Broad SNR0.00
AGN frac0.09
Host frac0.91
log L5100,Host43.78
Fe II/Hβ
Fe II/[O III]

Quality flags

spurious_hab/hbb0.0/1
l51002
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.