LEDA 172061
Observation
| Spectrum ID | 11541001_sp1 |
|---|---|
| Alt name | g0026368-241545 |
| z | 0.0558 |
| RA, Dec | 6.6534, -24.2626 |
| MJD | 60224.56 |
| SNR/Å B/R | 14.6/28.5 |
| Obs Airmass | 1.01 |
| SMSS ID | 11541001 |
| Closest SMSS | 8.26'', 2020533820 |
| SMSS Mean r6"ap | 16.6 ± 0.1 |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.013 |
| Power law αν | -1.96 ± 0.04 |
| log L5100,AGN | 42.71 ± 0.03 |
| log HβBr/[O III] | <-0.51 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.79 ± 0.05 |
| log MHβ/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 | 39.12 ± 0.37 | 325 ± 63 | 190 ± 25 | 1.32 ± 0.87 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.33 ± 0.20 | 259 ± 63 | 109 ± 25 | 2.13 ± 0.64 |
| He II Broad | 40.27 ± 0.12 | 7029 ± 63 | 2985 ± 25 | 18.74 ± 2.98 |
| Hβ Narrow | 40.03 ± 0.06 | 325 ± 63 | 190 ± 25 | 10.60 ± 0.79 |
| Hβ Broad | <40.23 | — | — | — |
| [O III] 5007 | 40.74 ± 0.01 | 325 ± 63 | 190 ± 25 | 55.06 ± 0.84 |
| He I Narrow | 38.79 ± 0.36 | 259 ± 63 | 109 ± 25 | 0.62 ± 0.32 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 39.35 ± 0.12 | 259 ± 63 | 109 ± 25 | 2.25 ± 0.34 |
| Hα Narrow | 40.57 ± 0.01 | 259 ± 63 | 109 ± 25 | 37.65 ± 0.44 |
| Hα Broad | 40.95 ± 0.02 | 2894 ± 84 | 1079 ± 25 | 90.06 ± 1.35 |
| [N II] 6585 | 40.31 ± 0.02 | 259 ± 63 | 109 ± 25 | 20.65 ± 0.46 |
| [S II] 6718 | 40.07 ± 0.02 | 259 ± 63 | 109 ± 25 | 11.94 ± 0.36 |
| [S II] 6732 | 39.94 ± 0.03 | 259 ± 63 | 109 ± 25 | 8.74 ± 0.35 |
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 | 4.86 |
|---|---|
| Hβ Broad SNR | 0.49 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.26 |
| Host frac | 0.74 |
| log L5100,Host | 43.16 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.46 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
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.