LEDA 868158
Observation
| Spectrum ID | 109225919_sp1 |
|---|---|
| Alt name | g1453235-182615 |
| z | 0.0650 |
| RA, Dec | 223.3473, -18.4374 |
| MJD | 59725.52 |
| SNR/Å B/R | 20.6/38.6 |
| Obs Airmass | 1.03 |
| SMSS ID | 109225919 |
| Closest SMSS | 8.03'', 2176736261 |
| SMSS Mean r6"ap | 15.0 ± 0.0 |
| 2MASS Kext | 11.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.077 |
| Power law αν | -0.55 ± 0.11 |
| log L5100,AGN | 43.78 ± 0.02 |
| log HβBr/[O III] | <-0.97 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 8.56 ± 0.02 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 40.38 ± 0.17 | 472 ± 63 | 256 ± 26 | 1.61 ± 0.44 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 40.07 ± 0.26 | 456 ± 62 | 193 ± 25 | 0.79 ± 0.29 |
| He II Narrow | 40.39 ± 0.11 | 456 ± 62 | 193 ± 25 | 1.82 ± 0.28 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.94 ± 0.04 | 472 ± 63 | 257 ± 26 | 6.80 ± 0.44 |
| Hβ Broad | <41.07 | — | — | — |
| [O III] 5007 | 42.05 ± 0.01 | 472 ± 63 | 257 ± 26 | 91.23 ± 0.52 |
| He I Narrow | 40.00 ± 0.15 | 456 ± 62 | 193 ± 25 | 1.03 ± 0.20 |
| He I Broad | 41.04 ± 0.09 | 10666 ± 69 | 4529 ± 28 | 11.43 ± 0.98 |
| [O I] 6300 | 40.74 ± 0.02 | 456 ± 62 | 193 ± 25 | 6.34 ± 0.22 |
| Hα Narrow | 41.48 ± 0.01 | 456 ± 62 | 193 ± 25 | 36.22 ± 0.29 |
| Hα Broad | 42.37 ± 0.01 | 8196 ± 153 | 3628 ± 27 | 281.21 ± 1.34 |
| [N II] 6585 | 41.50 ± 0.01 | 456 ± 62 | 193 ± 25 | 38.68 ± 0.28 |
| [S II] 6718 | 41.04 ± 0.01 | 456 ± 62 | 193 ± 25 | 13.70 ± 0.27 |
| [S II] 6732 | 41.03 ± 0.01 | 456 ± 62 | 193 ± 25 | 13.51 ± 0.29 |
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 | 8.46 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.47 |
| Host frac | 0.53 |
| log L5100,Host | 43.84 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 1 |
balmer | 2 |
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.