LEDA 225607
Observation
| Spectrum ID | 408665904_sp3 |
|---|---|
| Alt name | g1514420-812338 |
| z | 0.0682 |
| RA, Dec | 228.6750, -81.3939 |
| MJD | 59346.7 |
| SNR/Å B/R | 12.0/24.7 |
| Obs Airmass | 1.65 |
| SMSS ID | 408665904 |
| Closest SMSS | 14.08'', 408665905 |
| SMSS Mean r6"ap | 16.0 ± 0.1 |
| 2MASS Kext | 12.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.234 |
| Power law αν | 0.47 ± 0.03 |
| log L5100,AGN | 43.89 ± 0.01 |
| log HβBr/[O III] | 0.56 ± 0.01 |
| log ML5100/M☉ | 9.17 ± 0.04 |
| log MHα/M☉ | 8.99 ± 0.04 |
| log MHβ/M☉ | 9.48 ± 0.04 |
| log M[O III]/M☉ | 9.41 ± 0.04 |
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 | — | — | — | — |
| Hγ Broad | 41.58 ± 0.09 | 4645 ± 304 | 3865 ± 154 | 16.95 ± 3.56 |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.94 ± 0.08 | 336 ± 62 | 1982 ± 99 | 5.08 ± 2.45 |
| Hβ Broad | 42.74 ± 0.01 | 14406 ± 672 | 11286 ± 30 | 338.91 ± 3.56 |
| [O III] 5007 | 42.18 ± 0.01 | 336 ± 62 | 3012 ± 26 | 95.88 ± 3.56 |
| He I Narrow | — | — | — | — |
| He I Broad | 41.96 ± 0.03 | 15306 ± 62 | 6500 ± 25 | 85.31 ± 3.56 |
| [O I] 6300 | 40.68 ± 0.05 | 336 ± 62 | 141 ± 25 | 5.32 ± 1.76 |
| Hα Narrow | 41.58 ± 0.01 | 336 ± 62 | 141 ± 25 | 46.71 ± 2.51 |
| Hα Broad | 42.91 ± 0.01 | 9254 ± 66 | 6563 ± 25 | 989.74 ± 3.56 |
| [N II] 6585 | 41.61 ± 0.01 | 336 ± 62 | 141 ± 25 | 50.63 ± 2.57 |
| [S II] 6718 | 41.02 ± 0.03 | 336 ± 62 | 141 ± 25 | 13.64 ± 2.02 |
| [S II] 6732 | 40.97 ± 0.03 | 336 ± 62 | 141 ± 25 | 12.22 ± 2.00 |
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 | 13.29 |
|---|---|
| Hβ Broad SNR | 7.61 |
| Hγ Broad SNR | 1.93 |
| AGN frac | 0.82 |
| Host frac | 0.18 |
| log L5100,Host | 43.23 |
| Fe II/Hβ | 0.11 |
| Fe II/[O III] | 0.38 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 2 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.