LEDA 1043734
Observation
| Spectrum ID | 89227181_sp1 |
|---|---|
| Alt name | g0910208-053058 |
| z | 0.0559 |
| RA, Dec | 137.5866, -5.5163 |
| MJD | 60021.47 |
| SNR/Å B/R | 11.9/29.7 |
| Obs Airmass | 1.11 |
| SMSS ID | 89227181 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 0.1 |
| 2MASS Kext | 12.5 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.025 |
| Power law αν | 0.13 ± 0.29 |
| log L5100,AGN | 42.77 ± 0.05 |
| log HβBr/[O III] | -0.30 ± 0.08 |
| log ML5100/M☉ | 7.82 ± 0.05 |
| log MHα/M☉ | 6.78 ± 0.06 |
| log MHβ/M☉ | 7.67 ± 0.07 |
| log M[O III]/M☉ | 7.93 ± 0.05 |
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 | 39.94 ± 0.15 | 305 ± 63 | 252 ± 26 | 5.33 ± 1.25 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.05 ± 0.44 | 228 ± 62 | 96 ± 25 | 0.82 ± 0.68 |
| He II Broad | 40.50 ± 0.10 | 3928 ± 63 | 1668 ± 25 | 22.91 ± 3.02 |
| Hβ Narrow | 40.59 ± 0.03 | 305 ± 63 | 252 ± 26 | 30.59 ± 1.36 |
| Hβ Broad | 40.66 ± 0.08 | 5254 ± 231 | 1955 ± 35 | 35.94 ± 3.71 |
| [O III] 5007 | 40.96 ± 0.01 | 305 ± 63 | 252 ± 26 | 77.09 ± 1.46 |
| He I Narrow | 39.22 ± 0.21 | 228 ± 62 | 96 ± 25 | 1.95 ± 0.51 |
| He I Broad | 40.10 ± 0.11 | 2727 ± 65 | 1158 ± 26 | 14.70 ± 1.95 |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 41.03 ± 0.01 | 228 ± 62 | 96 ± 25 | 157.67 ± 0.82 |
| Hα Broad | 41.25 ± 0.01 | 2320 ± 136 | 1139 ± 25 | 265.47 ± 2.96 |
| [N II] 6585 | 40.76 ± 0.01 | 228 ± 62 | 96 ± 25 | 86.85 ± 0.80 |
| [S II] 6718 | 40.46 ± 0.01 | 228 ± 62 | 96 ± 25 | 44.64 ± 0.73 |
| [S II] 6732 | 40.36 ± 0.01 | 228 ± 62 | 96 ± 25 | 35.86 ± 0.76 |
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 | 5.73 |
|---|---|
| Hβ Broad SNR | 1.06 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.20 |
| Host frac | 0.80 |
| log L5100,Host | 43.36 |
| Fe II/Hβ | 0.83 |
| Fe II/[O III] | 0.41 |
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.