LEDA 3080622
Observation
| Spectrum ID | 22453315_sp1 |
|---|---|
| Alt name | g0422566-185442 |
| z | 0.0642 |
| RA, Dec | 65.7357, -18.9117 |
| MJD | 60562.76 |
| SNR/Å B/R | 12.7/26.2 |
| Obs Airmass | 1.06 |
| SMSS ID | 22453315 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.0 ± 0.1 |
| 2MASS Kext | 11.5 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.040 |
| Power law αν | -1.97 ± 0.02 |
| log L5100,AGN | 43.35 ± 0.02 |
| log HβBr/[O III] | 0.48 ± 0.02 |
| log ML5100/M☉ | 7.44 ± 0.06 |
| log MHα/M☉ | 7.00 ± 0.03 |
| log MHβ/M☉ | 7.55 ± 0.06 |
| log M[O III]/M☉ | 7.48 ± 0.06 |
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 | 39.52 ± 0.46 | 572 ± 63 | 219 ± 25 | 0.76 ± 0.52 |
| Hγ Broad | 40.33 ± 0.16 | 1357 ± 99 | 505 ± 33 | 4.14 ± 0.91 |
| [O III] 4364 | 39.82 ± 0.24 | 406 ± 63 | 172 ± 25 | 1.51 ± 0.47 |
| He II Narrow | 39.78 ± 0.26 | 406 ± 63 | 172 ± 25 | 1.37 ± 0.43 |
| He II Broad | 40.28 ± 0.22 | 2850 ± 63 | 1210 ± 25 | 4.34 ± 1.13 |
| Hβ Narrow | 40.59 ± 0.06 | 572 ± 63 | 219 ± 25 | 8.84 ± 0.50 |
| Hβ Broad | 41.78 ± 0.02 | 2570 ± 175 | 5186 ± 58 | 138.29 ± 3.37 |
| [O III] 5007 | 41.30 ± 0.01 | 572 ± 63 | 219 ± 25 | 45.51 ± 0.53 |
| He I Narrow | 39.30 ± 0.37 | 406 ± 63 | 172 ± 25 | 0.46 ± 0.27 |
| He I Broad | 40.48 ± 0.08 | 2223 ± 63 | 944 ± 25 | 6.89 ± 0.63 |
| [O I] 6300 | 39.46 ± 0.24 | 406 ± 63 | 172 ± 25 | 0.66 ± 0.22 |
| Hα Narrow | 41.20 ± 0.01 | 406 ± 63 | 172 ± 25 | 36.83 ± 0.37 |
| Hα Broad | 42.06 ± 0.01 | 1684 ± 63 | 844 ± 25 | 266.87 ± 0.99 |
| [N II] 6585 | 40.97 ± 0.01 | 406 ± 63 | 172 ± 25 | 21.48 ± 0.32 |
| [S II] 6718 | 40.35 ± 0.03 | 406 ± 63 | 172 ± 25 | 5.10 ± 0.25 |
| [S II] 6732 | 40.22 ± 0.05 | 406 ± 63 | 172 ± 25 | 3.86 ± 0.26 |
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 | 32.83 |
|---|---|
| Hβ Broad SNR | 6.36 |
| Hγ Broad SNR | 1.37 |
| AGN frac | 0.53 |
| Host frac | 0.47 |
| log L5100,Host | 43.30 |
| Fe II/Hβ | 0.59 |
| Fe II/[O III] | 1.79 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 2 |
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.