LEDA 668116
Observation
| Spectrum ID | 19795813_sp1 |
|---|---|
| Alt name | g0529592-340159 |
| z | 0.0788 |
| RA, Dec | 82.4967, -34.0329 |
| MJD | 59668.38 |
| SNR/Å B/R | 8.6/15.3 |
| Obs Airmass | 1.11 |
| SMSS ID | 19795813 |
| Closest SMSS | 5.13'', 2041549029 |
| SMSS Mean r6"ap | 16.0 ± 0.1 |
| 2MASS Kext | 12.5 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.016 |
| Power law αν | -0.70 ± 0.20 |
| log L5100,AGN | 43.55 ± 0.04 |
| log HβBr/[O III] | -0.50 ± 0.07 |
| log ML5100/M☉ | 8.51 ± 0.24 |
| log MHα/M☉ | 8.50 ± 0.02 |
| log MHβ/M☉ | 8.46 ± 0.24 |
| log M[O III]/M☉ | 8.86 ± 0.24 |
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 | 40.46 ± 0.31 | 674 ± 62 | 286 ± 25 | 3.35 ± 1.03 |
| Hγ Broad | 40.68 ± 0.27 | 1267 ± 100 | 467 ± 41 | 4.17 ± 1.46 |
| [O III] 4364 | 40.13 ± 0.37 | 673 ± 62 | 285 ± 25 | 1.59 ± 0.99 |
| He II Narrow | 40.32 ± 0.31 | 673 ± 62 | 285 ± 25 | 2.70 ± 0.98 |
| He II Broad | 40.21 ± 0.46 | 1216 ± 62 | 516 ± 25 | 2.10 ± 1.29 |
| Hβ Narrow | 41.07 ± 0.07 | 674 ± 62 | 286 ± 25 | 15.94 ± 1.09 |
| Hβ Broad | 41.63 ± 0.06 | 7945 ± 2225 | 3752 ± 78 | 55.82 ± 4.33 |
| [O III] 5007 | 42.13 ± 0.01 | 674 ± 62 | 286 ± 25 | 187.21 ± 1.33 |
| He I Narrow | 39.89 ± 0.38 | 673 ± 62 | 285 ± 25 | 1.34 ± 0.70 |
| He I Broad | 40.09 ± 0.41 | 1938 ± 62 | 823 ± 25 | 2.14 ± 1.37 |
| [O I] 6300 | 40.45 ± 0.11 | 673 ± 62 | 285 ± 25 | 5.34 ± 0.81 |
| Hα Narrow | 41.65 ± 0.01 | 673 ± 62 | 285 ± 25 | 89.60 ± 1.06 |
| Hα Broad | 42.09 ± 0.02 | 9282 ± 231 | 3512 ± 34 | 247.75 ± 4.00 |
| [N II] 6585 | 41.51 ± 0.01 | 673 ± 62 | 285 ± 25 | 64.89 ± 1.04 |
| [S II] 6718 | 41.13 ± 0.04 | 673 ± 62 | 285 ± 25 | 27.96 ± 1.29 |
| [S II] 6732 | 40.99 ± 0.04 | 673 ± 62 | 285 ± 25 | 20.18 ± 1.32 |
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 | 2.50 |
|---|---|
| Hβ Broad SNR | 1.32 |
| Hγ Broad SNR | 1.03 |
| AGN frac | 0.41 |
| Host frac | 0.59 |
| log L5100,Host | 43.71 |
| Fe II/Hβ | 0.85 |
| Fe II/[O III] | 0.26 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 1 |
balmer_snr | 2 |
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.