LEDA 148379
Observation
| Spectrum ID | 472981554_sp1 |
|---|---|
| Alt name | g0606075-493848 |
| z | 0.0562 |
| RA, Dec | 91.5313, -49.6466 |
| MJD | 61032.54 |
| SNR/Å B/R | 10.8/23.8 |
| Obs Airmass | 1.07 |
| SMSS ID | 472981554 |
| Closest SMSS | 4.51'', 472981552 |
| SMSS Mean r6"ap | 16.7 ± 0.1 |
| 2MASS Kext | 12.3 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.039 |
| Power law αν | -1.98 ± 0.02 |
| log L5100,AGN | 42.45 ± 0.06 |
| log HβBr/[O III] | <-0.03 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.26 ± 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 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | 40.98 ± 0.06 | 17661 ± 62 | 7500 ± 25 | 173.52 ± 14.13 |
| Hβ Narrow | 39.62 ± 0.24 | 449 ± 63 | 349 ± 46 | 7.50 ± 3.52 |
| Hβ Broad | <40.63 | — | — | — |
| [O III] 5007 | 40.66 ± 0.03 | 449 ± 63 | 349 ± 46 | 82.71 ± 3.39 |
| He I Narrow | 38.83 ± 0.46 | 423 ± 62 | 179 ± 25 | 1.23 ± 1.04 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 39.12 ± 0.29 | 423 ± 62 | 179 ± 25 | 2.42 ± 1.01 |
| Hα Narrow | 40.57 ± 0.02 | 423 ± 62 | 179 ± 25 | 67.42 ± 1.46 |
| Hα Broad | 40.93 ± 0.03 | 5023 ± 132 | 1878 ± 60 | 153.66 ± 4.35 |
| [N II] 6585 | 40.49 ± 0.02 | 423 ± 62 | 179 ± 25 | 56.68 ± 1.36 |
| [S II] 6718 | 40.07 ± 0.04 | 423 ± 62 | 179 ± 25 | 21.47 ± 1.16 |
| [S II] 6732 | 39.97 ± 0.05 | 423 ± 62 | 179 ± 25 | 17.08 ± 1.11 |
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 | 1.76 |
|---|---|
| Hβ Broad SNR | 0.57 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.14 |
| Host frac | 0.86 |
| log L5100,Host | 43.25 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.89 |
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.