LEDA 64989
Observation
| Spectrum ID | 234112050_sp1 |
|---|---|
| Alt name | g2034314-303729 |
| z | 0.0194 |
| RA, Dec | 308.6306, -30.6246 |
| MJD | 59078.42 |
| SNR/Å B/R | 22.7/41.8 |
| Obs Airmass | 1.26 |
| SMSS ID | 234112050 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.5 ± 0.0 |
| 2MASS Kext | 10.3 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.059 |
| Power law αν | -0.16 ± 0.09 |
| log L5100,AGN | 43.00 ± 0.02 |
| log HβBr/[O III] | 0.75 ± 0.02 |
| log ML5100/M☉ | 7.51 ± 0.04 |
| log MHα/M☉ | 7.09 ± 0.03 |
| log MHβ/M☉ | 7.52 ± 0.05 |
| log M[O III]/M☉ | 7.29 ± 0.06 |
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 | 39.75 ± 0.13 | 784 ± 72 | 339 ± 28 | 2.13 ± 0.30 |
| Hγ Broad | 40.76 ± 0.03 | 3556 ± 188 | 1345 ± 49 | 21.32 ± 0.66 |
| [O III] 4364 | 38.99 ± 0.35 | 468 ± 63 | 198 ± 25 | 0.37 ± 0.22 |
| He II Narrow | 39.16 ± 0.21 | 468 ± 63 | 198 ± 25 | 0.63 ± 0.20 |
| He II Broad | 40.80 ± 0.03 | 8718 ± 347 | 3702 ± 147 | 26.57 ± 0.89 |
| Hβ Narrow | 40.04 ± 0.07 | 784 ± 72 | 339 ± 28 | 5.11 ± 0.28 |
| Hβ Broad | 41.22 ± 0.01 | 3294 ± 140 | 1614 ± 45 | 77.92 ± 0.73 |
| [O III] 5007 | 40.47 ± 0.01 | 784 ± 72 | 339 ± 28 | 14.47 ± 0.28 |
| He I Narrow | 38.95 ± 0.20 | 468 ± 63 | 198 ± 25 | 0.58 ± 0.16 |
| He I Broad | 40.69 ± 0.02 | 5919 ± 153 | 2513 ± 64 | 32.27 ± 0.73 |
| [O I] 6300 | 39.70 ± 0.04 | 468 ± 63 | 198 ± 25 | 3.72 ± 0.20 |
| Hα Narrow | 40.41 ± 0.02 | 468 ± 63 | 198 ± 25 | 20.74 ± 0.28 |
| Hα Broad | 41.76 ± 0.01 | 2312 ± 64 | 1277 ± 25 | 463.34 ± 0.86 |
| [N II] 6585 | 40.15 ± 0.03 | 468 ± 63 | 198 ± 25 | 11.52 ± 0.27 |
| [S II] 6718 | 40.02 ± 0.02 | 468 ± 63 | 198 ± 25 | 8.88 ± 0.24 |
| [S II] 6732 | 39.98 ± 0.02 | 468 ± 63 | 198 ± 25 | 8.14 ± 0.26 |
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 | 48.96 |
|---|---|
| Hβ Broad SNR | 14.36 |
| Hγ Broad SNR | 6.00 |
| AGN frac | 0.57 |
| Host frac | 0.43 |
| log L5100,Host | 42.88 |
| Fe II/Hβ | 0.13 |
| Fe II/[O III] | 0.74 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 0 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.