LEDA 3080556
Observation
| Spectrum ID | 22267460_sp2 |
|---|---|
| Alt name | g0404473-034757 |
| z | 0.0692 |
| RA, Dec | 61.1972, -3.7992 |
| MJD | 60554.77 |
| SNR/Å B/R | 12.4/21.6 |
| Obs Airmass | 1.17 |
| SMSS ID | 22267460 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.6 ± 0.1 |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.081 |
| Power law αν | 0.32 ± 0.15 |
| log L5100,AGN | 43.18 ± 0.03 |
| log HβBr/[O III] | 0.02 ± 0.05 |
| log ML5100/M☉ | 8.21 ± 0.07 |
| log MHα/M☉ | 7.33 ± 0.06 |
| log MHβ/M☉ | 8.10 ± 0.08 |
| log M[O III]/M☉ | 8.22 ± 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 | 40.05 ± 0.19 | 351 ± 63 | 191 ± 26 | 2.58 ± 0.54 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.86 ± 0.21 | 334 ± 63 | 141 ± 25 | 1.72 ± 0.49 |
| He II Narrow | 39.75 ± 0.26 | 334 ± 63 | 141 ± 25 | 1.54 ± 0.51 |
| He II Broad | 40.37 ± 0.16 | 2096 ± 64 | 890 ± 26 | 6.44 ± 1.26 |
| Hβ Narrow | 40.66 ± 0.04 | 351 ± 63 | 191 ± 26 | 13.79 ± 0.60 |
| Hβ Broad | 41.11 ± 0.05 | 6786 ± 483 | 2594 ± 35 | 38.84 ± 2.52 |
| [O III] 5007 | 41.10 ± 0.01 | 351 ± 63 | 191 ± 26 | 40.12 ± 0.67 |
| He I Narrow | 39.56 ± 0.23 | 334 ± 63 | 141 ± 25 | 1.69 ± 0.54 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 39.27 ± 0.33 | 334 ± 63 | 141 ± 25 | 1.03 ± 0.56 |
| Hα Narrow | 41.18 ± 0.01 | 334 ± 63 | 141 ± 25 | 91.41 ± 0.80 |
| Hα Broad | 41.56 ± 0.01 | 3517 ± 219 | 1431 ± 26 | 218.49 ± 2.62 |
| [N II] 6585 | 41.01 ± 0.01 | 334 ± 63 | 141 ± 25 | 63.11 ± 0.78 |
| [S II] 6718 | 40.55 ± 0.02 | 334 ± 63 | 141 ± 25 | 22.79 ± 0.78 |
| [S II] 6732 | 40.49 ± 0.03 | 334 ± 63 | 141 ± 25 | 19.78 ± 0.79 |
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 | 5.48 |
|---|---|
| Hβ Broad SNR | 1.45 |
| Hγ Broad SNR | 0.94 |
| AGN frac | 0.34 |
| Host frac | 0.66 |
| log L5100,Host | 43.47 |
| Fe II/Hβ | 0.45 |
| Fe II/[O III] | 0.46 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.