LEDA 178481
Observation
| Spectrum ID | 23662308_sp1 |
|---|---|
| Alt name | g0527208-195411 |
| z | 0.0691 |
| RA, Dec | 81.8368, -19.9031 |
| MJD | 60286.59 |
| SNR/Å B/R | 16.4/28.9 |
| Obs Airmass | 1.02 |
| SMSS ID | 23662308 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.3 ± 0.0 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.040 |
| Power law αν | 0.47 ± 0.03 |
| log L5100,AGN | 43.29 ± 0.01 |
| log HβBr/[O III] | 0.58 ± 0.06 |
| log ML5100/M☉ | 8.32 ± 0.05 |
| log MHα/M☉ | 7.47 ± 0.06 |
| log MHβ/M☉ | 8.25 ± 0.06 |
| log M[O III]/M☉ | 8.11 ± 0.07 |
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 | 39.79 ± 0.28 | 345 ± 63 | 349 ± 59 | 1.08 ± 0.72 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.98 ± 0.16 | 331 ± 62 | 140 ± 25 | 1.71 ± 0.39 |
| He II Narrow | — | — | — | — |
| He II Broad | 39.53 ± 0.46 | 1179 ± 62 | 500 ± 25 | 0.72 ± 0.66 |
| Hβ Narrow | 40.56 ± 0.06 | 345 ± 63 | 349 ± 59 | 8.34 ± 0.82 |
| Hβ Broad | 41.33 ± 0.04 | 7274 ± 428 | 2816 ± 51 | 48.42 ± 2.06 |
| [O III] 5007 | 40.75 ± 0.04 | 345 ± 63 | 349 ± 59 | 13.87 ± 0.93 |
| He I Narrow | 39.45 ± 0.29 | 331 ± 62 | 140 ± 25 | 1.05 ± 0.44 |
| He I Broad | 40.91 ± 0.07 | 9281 ± 63 | 3941 ± 25 | 29.84 ± 2.34 |
| [O I] 6300 | 39.38 ± 0.30 | 331 ± 62 | 140 ± 25 | 1.04 ± 0.44 |
| Hα Narrow | 41.12 ± 0.01 | 331 ± 62 | 140 ± 25 | 64.39 ± 0.65 |
| Hα Broad | 41.77 ± 0.01 | 3570 ± 255 | 1886 ± 25 | 284.64 ± 2.62 |
| [N II] 6585 | 40.79 ± 0.02 | 331 ± 62 | 140 ± 25 | 30.16 ± 0.60 |
| [S II] 6718 | 39.87 ± 0.12 | 331 ± 62 | 140 ± 25 | 3.83 ± 0.62 |
| [S II] 6732 | 39.55 ± 0.25 | 331 ± 62 | 140 ± 25 | 1.82 ± 0.61 |
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 | 7.69 |
|---|---|
| Hβ Broad SNR | 2.13 |
| Hγ Broad SNR | 0.91 |
| AGN frac | 0.33 |
| Host frac | 0.67 |
| log L5100,Host | 43.59 |
| Fe II/Hβ | 1.31 |
| Fe II/[O III] | 4.90 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.