LEDA 946
Observation
| Spectrum ID | 13121698_sp2 |
|---|---|
| Alt name | g0014181-051904 |
| z | 0.0832 |
| RA, Dec | 3.5755, -5.3181 |
| MJD | 60477.79 |
| SNR/Å B/R | 9.0/16.4 |
| Obs Airmass | 1.21 |
| SMSS ID | 13121698 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 0.0 |
| 2MASS Kext | 12.8 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.027 |
| Power law αν | -1.21 ± 0.05 |
| log L5100,AGN | 43.43 ± 0.02 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| 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 | 40.03 ± 0.21 | 318 ± 62 | 159 ± 33 | 1.78 ± 0.90 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.70 ± 0.35 | 317 ± 62 | 133 ± 25 | 0.89 ± 0.49 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.72 ± 0.05 | 318 ± 62 | 159 ± 33 | 9.51 ± 0.91 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 40.79 ± 0.04 | 318 ± 62 | 159 ± 33 | 11.34 ± 1.03 |
| He I Narrow | 39.33 ± 0.50 | 317 ± 62 | 133 ± 25 | 0.46 ± 0.37 |
| He I Broad | 39.58 ± 0.49 | 1184 ± 62 | 503 ± 25 | 0.81 ± 0.66 |
| [O I] 6300 | 39.76 ± 0.24 | 317 ± 62 | 133 ± 25 | 1.31 ± 0.39 |
| Hα Narrow | 41.47 ± 0.01 | 317 ± 62 | 133 ± 25 | 69.21 ± 0.41 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 41.13 ± 0.01 | 317 ± 62 | 133 ± 25 | 31.39 ± 0.39 |
| [S II] 6718 | 40.68 ± 0.04 | 317 ± 62 | 133 ± 25 | 11.47 ± 0.56 |
| [S II] 6732 | 40.62 ± 0.04 | 317 ± 62 | 133 ± 25 | 9.84 ± 0.49 |
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 | 0.94 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.49 |
| Host frac | 0.51 |
| log L5100,Host | 43.44 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
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.