LEDA 964071
Observation
| Spectrum ID | 20694896_sp1 |
|---|---|
| Alt name | g0305346-113454 |
| z | 0.0784 |
| RA, Dec | 46.3944, -11.5817 |
| MJD | 60225.62 |
| SNR/Å B/R | 15.5/25.5 |
| Obs Airmass | 1.11 |
| SMSS ID | 20694896 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.7 ± 0.1 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.072 |
| Power law αν | 0.27 ± 0.18 |
| log L5100,AGN | 43.18 ± 0.03 |
| log HβBr/[O III] | -0.39 ± 0.05 |
| log ML5100/M☉ | 7.23 ± 0.08 |
| log MHα/M☉ | 6.99 ± 0.03 |
| log MHβ/M☉ | 7.05 ± 0.09 |
| log M[O III]/M☉ | 7.37 ± 0.08 |
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 | 40.27 ± 0.17 | 467 ± 63 | 333 ± 28 | 4.28 ± 0.68 |
| Hγ Broad | 40.46 ± 0.16 | 1550 ± 256 | 605 ± 82 | 5.74 ± 0.98 |
| [O III] 4364 | 39.34 ± 0.40 | 376 ± 63 | 159 ± 25 | 0.51 ± 0.44 |
| He II Narrow | — | — | — | — |
| He II Broad | 39.75 ± 0.35 | 1179 ± 62 | 500 ± 25 | 1.53 ± 0.85 |
| Hβ Narrow | 40.80 ± 0.04 | 467 ± 63 | 333 ± 28 | 18.65 ± 0.83 |
| Hβ Broad | 40.97 ± 0.05 | 2189 ± 196 | 845 ± 47 | 27.77 ± 1.36 |
| [O III] 5007 | 41.37 ± 0.01 | 467 ± 63 | 333 ± 28 | 74.55 ± 0.95 |
| He I Narrow | 39.63 ± 0.22 | 376 ± 63 | 159 ± 25 | 1.97 ± 0.55 |
| He I Broad | 40.64 ± 0.07 | 3476 ± 116 | 1476 ± 49 | 20.12 ± 2.02 |
| [O I] 6300 | 40.08 ± 0.06 | 376 ± 63 | 159 ± 25 | 6.52 ± 0.61 |
| Hα Narrow | 41.26 ± 0.01 | 376 ± 63 | 159 ± 25 | 107.22 ± 0.93 |
| Hα Broad | 41.83 ± 0.01 | 1970 ± 65 | 807 ± 34 | 397.63 ± 2.99 |
| [N II] 6585 | 41.13 ± 0.01 | 376 ± 63 | 159 ± 25 | 81.12 ± 0.88 |
| [S II] 6718 | 40.52 ± 0.04 | 376 ± 63 | 159 ± 25 | 20.89 ± 1.04 |
| [S II] 6732 | 40.53 ± 0.03 | 376 ± 63 | 159 ± 25 | 21.12 ± 1.05 |
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 | 18.73 |
|---|---|
| Hβ Broad SNR | 3.37 |
| Hγ Broad SNR | 1.59 |
| AGN frac | 0.30 |
| Host frac | 0.70 |
| log L5100,Host | 43.56 |
| Fe II/Hβ | 0.89 |
| Fe II/[O III] | 0.35 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 0 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.