LEDA 3835280
Observation
| Spectrum ID | 103671450_sp1 |
|---|---|
| Alt name | g1451408-213912 |
| z | 0.0653 |
| RA, Dec | 222.9198, -21.6533 |
| MJD | 61112.68 |
| SNR/Å B/R | 7.0/16.3 |
| Obs Airmass | 1.06 |
| SMSS ID | 103671450 |
| Closest SMSS | 8.42'', 103671451 |
| SMSS Mean r6"ap | 16.5 ± 0.1 |
| 2MASS Kext | 12.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.099 |
| Power law αν | -1.96 ± 0.03 |
| log L5100,AGN | 42.53 ± 0.09 |
| log HβBr/[O III] | <0.11 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.57 ± 0.08 |
| 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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.56 ± 0.33 | 320 ± 63 | 138 ± 25 | 5.18 ± 2.88 |
| Hβ Broad | <40.58 | — | — | — |
| [O III] 5007 | 40.47 ± 0.04 | 320 ± 63 | 138 ± 25 | 44.24 ± 3.15 |
| He I Narrow | 39.42 ± 0.27 | 314 ± 62 | 133 ± 25 | 4.05 ± 1.39 |
| He I Broad | 40.11 ± 0.20 | 3419 ± 63 | 1452 ± 25 | 19.79 ± 4.82 |
| [O I] 6300 | 39.30 ± 0.30 | 314 ± 62 | 133 ± 25 | 3.05 ± 1.27 |
| Hα Narrow | 40.51 ± 0.03 | 314 ± 62 | 133 ± 25 | 50.07 ± 1.46 |
| Hα Broad | 40.87 ± 0.06 | 2384 ± 150 | 1567 ± 120 | 113.96 ± 7.28 |
| [N II] 6585 | 40.42 ± 0.03 | 314 ± 62 | 133 ± 25 | 40.83 ± 1.38 |
| [S II] 6718 | 39.94 ± 0.08 | 314 ± 62 | 133 ± 25 | 13.29 ± 1.45 |
| [S II] 6732 | 40.08 ± 0.07 | 314 ± 62 | 133 ± 25 | 18.47 ± 1.57 |
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 | 1.28 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.14 |
| Host frac | 0.86 |
| log L5100,Host | 43.31 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 2 |
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.