LEDA 183344
Observation
| Spectrum ID | 106317766_sp1 |
|---|---|
| Alt name | g1251559-122438 |
| z | 0.0751 |
| RA, Dec | 192.9830, -12.4106 |
| MJD | 60018.64 |
| SNR/Å B/R | 13.9/26.5 |
| Obs Airmass | 1.06 |
| SMSS ID | 106317766 |
| Closest SMSS | 1.23'', 2172823994 |
| SMSS Mean r6"ap | 16.1 ± 0.0 |
| 2MASS Kext | 11.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.033 |
| Power law αν | -0.33 ± 0.22 |
| log L5100,AGN | 43.56 ± 0.03 |
| log HβBr/[O III] | 0.46 ± 0.05 |
| log ML5100/M☉ | 7.66 ± 0.06 |
| log MHα/M☉ | 7.72 ± 0.02 |
| log MHβ/M☉ | 7.52 ± 0.07 |
| log M[O III]/M☉ | 7.45 ± 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 | 39.97 ± 0.37 | 613 ± 63 | 260 ± 25 | 0.93 ± 0.57 |
| Hγ Broad | 41.41 ± 0.07 | 6058 ± 803 | 2513 ± 45 | 27.76 ± 2.05 |
| [O III] 4364 | 39.88 ± 0.41 | 610 ± 63 | 258 ± 25 | 0.83 ± 0.56 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.52 ± 0.14 | 613 ± 63 | 260 ± 25 | 4.06 ± 0.62 |
| Hβ Broad | 41.44 ± 0.04 | 2966 ± 206 | 1156 ± 29 | 35.22 ± 1.41 |
| [O III] 5007 | 40.98 ± 0.03 | 613 ± 63 | 260 ± 25 | 12.75 ± 0.64 |
| He I Narrow | 40.30 ± 0.11 | 610 ± 63 | 258 ± 25 | 3.57 ± 0.61 |
| He I Broad | 41.70 ± 0.04 | 17661 ± 62 | 7500 ± 25 | 89.85 ± 3.29 |
| [O I] 6300 | 39.88 ± 0.26 | 610 ± 63 | 258 ± 25 | 1.52 ± 0.57 |
| Hα Narrow | 41.32 ± 0.02 | 610 ± 63 | 258 ± 25 | 44.85 ± 0.75 |
| Hα Broad | 42.25 ± 0.01 | 3409 ± 70 | 2132 ± 48 | 381.76 ± 3.77 |
| [N II] 6585 | 41.37 ± 0.02 | 610 ± 63 | 258 ± 25 | 50.81 ± 0.74 |
| [S II] 6718 | 40.49 ± 0.08 | 610 ± 63 | 258 ± 25 | 6.84 ± 0.83 |
| [S II] 6732 | 40.50 ± 0.10 | 610 ± 63 | 258 ± 25 | 7.07 ± 0.85 |
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 | 11.25 |
|---|---|
| Hβ Broad SNR | 3.54 |
| Hγ Broad SNR | 1.88 |
| AGN frac | 0.36 |
| Host frac | 0.64 |
| log L5100,Host | 43.80 |
| Fe II/Hβ | 0.29 |
| Fe II/[O III] | 0.85 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 0 |
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.