LEDA 132254
Observation
| Spectrum ID | 18439522_sp1 |
|---|---|
| Alt name | g0430108-364206 |
| z | 0.0760 |
| RA, Dec | 67.5449, -36.7018 |
| MJD | 60581.75 |
| SNR/Å B/R | 9.5/20.1 |
| Obs Airmass | 1.00 |
| SMSS ID | 18439522 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.8 ± 0.1 |
| 2MASS Kext | 12.8 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.018 |
| Power law αν | -1.93 ± 0.08 |
| log L5100,AGN | 42.47 ± 0.15 |
| log HβBr/[O III] | 0.66 ± 0.09 |
| log ML5100/M☉ | 6.68 ± 0.13 |
| log MHα/M☉ | 7.12 ± 0.04 |
| log MHβ/M☉ | 6.86 ± 0.12 |
| log M[O III]/M☉ | 6.67 ± 0.13 |
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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.38 ± 0.33 | 183 ± 63 | 73 ± 25 | 4.16 ± 2.00 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | — | — | — | — |
| Hβ Broad | 41.09 ± 0.06 | 1648 ± 205 | 2902 ± 87 | 216.44 ± 14.92 |
| [O III] 5007 | 40.44 ± 0.07 | 308 ± 89 | 438 ± 27 | 47.62 ± 4.99 |
| He I Narrow | 39.16 ± 0.28 | 183 ± 63 | 73 ± 25 | 2.55 ± 1.12 |
| He I Broad | 40.76 ± 0.06 | 5942 ± 63 | 2523 ± 25 | 101.04 ± 7.44 |
| [O I] 6300 | 39.52 ± 0.13 | 183 ± 63 | 73 ± 25 | 5.80 ± 1.07 |
| Hα Narrow | 40.52 ± 0.02 | 183 ± 63 | 73 ± 25 | 57.80 ± 1.66 |
| Hα Broad | 41.57 ± 0.01 | 2733 ± 123 | 1284 ± 25 | 656.44 ± 6.65 |
| [N II] 6585 | 40.32 ± 0.03 | 183 ± 63 | 73 ± 25 | 36.90 ± 1.29 |
| [S II] 6718 | 39.76 ± 0.09 | 183 ± 63 | 73 ± 25 | 10.15 ± 1.39 |
| [S II] 6732 | 39.38 ± 0.25 | 183 ± 63 | 73 ± 25 | 4.20 ± 1.96 |
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 | 7.77 |
|---|---|
| Hβ Broad SNR | 2.59 |
| Hγ Broad SNR | 0.90 |
| AGN frac | 0.10 |
| Host frac | 0.90 |
| log L5100,Host | 43.43 |
| Fe II/Hβ | 0.63 |
| Fe II/[O III] | 2.87 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 2 |
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.