LEDA 209104
Observation
| Spectrum ID | 226967957_sp1 |
|---|---|
| Alt name | g1854343-281421 |
| z | 0.1001 |
| RA, Dec | 283.6427, -28.2390 |
| MJD | 60165.44 |
| SNR/Å B/R | 8.5/14.1 |
| Obs Airmass | 1.04 |
| SMSS ID | 226967957 |
| Closest SMSS | 7.55'', 226967956 |
| SMSS Mean r6"ap | 17.1 ± 0.0 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.187 |
| Power law αν | -1.68 ± 0.17 |
| log L5100,AGN | 42.47 ± 0.30 |
| log HβBr/[O III] | <0.04 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.55 ± 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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.90 ± 0.31 | 357 ± 62 | 151 ± 25 | 13.34 ± 6.41 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.92 ± 0.32 | 359 ± 63 | 168 ± 30 | 14.31 ± 9.25 |
| Hβ Broad | <41.05 | — | — | — |
| [O III] 5007 | 41.01 ± 0.03 | 359 ± 63 | 168 ± 30 | 175.08 ± 11.80 |
| He I Narrow | 39.52 ± 0.47 | 357 ± 62 | 151 ± 25 | 6.03 ± 5.80 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 40.13 ± 0.16 | 357 ± 62 | 151 ± 25 | 25.25 ± 6.27 |
| Hα Narrow | 40.80 ± 0.06 | 357 ± 62 | 151 ± 25 | 119.24 ± 7.64 |
| Hα Broad | 41.79 ± 0.02 | 3839 ± 195 | 1485 ± 26 | 1171.49 ± 24.46 |
| [N II] 6585 | 40.97 ± 0.04 | 357 ± 62 | 151 ± 25 | 175.85 ± 8.63 |
| [S II] 6718 | 40.45 ± 0.09 | 357 ± 62 | 151 ± 25 | 54.10 ± 7.30 |
| [S II] 6732 | 40.24 ± 0.16 | 357 ± 62 | 151 ± 25 | 33.16 ± 7.25 |
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 | 4.06 |
|---|---|
| Hβ Broad SNR | 0.74 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.04 |
| Host frac | 0.96 |
| log L5100,Host | 43.80 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.61 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.