LEDA 826263
Observation
| Spectrum ID | 23289019_sp1 |
|---|---|
| Alt name | g0520582-213520 |
| z | 0.0834 |
| RA, Dec | 80.2423, -21.5888 |
| MJD | 60226.65 |
| SNR/Å B/R | 10.0/19.1 |
| Obs Airmass | 1.24 |
| SMSS ID | 23289019 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.0 ± 0.2 |
| 2MASS Kext | 13.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.033 |
| Power law αν | 0.40 ± 0.09 |
| log L5100,AGN | 42.87 ± 0.05 |
| log HβBr/[O III] | -0.87 ± 0.54 |
| log ML5100/M☉ | 7.45 ± 0.03 |
| log MHα/M☉ | 7.44 ± 0.02 |
| log MHβ/M☉ | 7.25 ± 0.26 |
| log M[O III]/M☉ | 7.80 ± 0.01 |
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 | 40.34 ± 0.06 | 279 ± 63 | 158 ± 25 | 10.28 ± 0.89 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.56 ± 0.24 | 224 ± 62 | 94 ± 25 | 1.72 ± 0.60 |
| He II Narrow | 39.61 ± 0.20 | 224 ± 62 | 94 ± 25 | 2.31 ± 0.64 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.66 ± 0.03 | 279 ± 63 | 158 ± 25 | 27.87 ± 1.06 |
| Hβ Broad | 40.65 +0.99−0.09 | 3265 ± 48 | 1216 ± 27 | 27.82 ± 2.93 |
| [O III] 5007 | 41.52 ± 0.01 | 279 ± 63 | 158 ± 25 | 219.93 ± 1.35 |
| He I Narrow | 39.77 ± 0.12 | 224 ± 62 | 94 ± 25 | 5.67 ± 1.06 |
| He I Broad | 40.44 ± 0.06 | 2054 ± 73 | 872 ± 30 | 26.70 ± 2.70 |
| [O I] 6300 | 40.07 ± 0.05 | 224 ± 62 | 94 ± 25 | 13.34 ± 0.88 |
| Hα Narrow | 41.14 ± 0.01 | 224 ± 62 | 94 ± 25 | 172.27 ± 1.13 |
| Hα Broad | 41.73 ± 0.01 | 3560 ± 86 | 1400 ± 26 | 674.02 ± 4.55 |
| [N II] 6585 | 40.92 ± 0.01 | 224 ± 62 | 94 ± 25 | 106.11 ± 1.06 |
| [S II] 6718 | 40.47 ± 0.03 | 224 ± 62 | 94 ± 25 | 39.09 ± 1.41 |
| [S II] 6732 | 40.47 ± 0.02 | 224 ± 62 | 94 ± 25 | 39.63 ± 1.18 |
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 | 9.97 |
|---|---|
| Hβ Broad SNR | 1.29 |
| Hγ Broad SNR | 0.66 |
| AGN frac | 0.28 |
| Host frac | 0.72 |
| log L5100,Host | 43.27 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
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.