LEDA 64989
Observation
| Spectrum ID | 234112050_sp2 |
|---|---|
| Alt name | g2034314-303729 |
| z | 0.0194 |
| RA, Dec | 308.6306, -30.6246 |
| MJD | 60523.59 |
| SNR/Å B/R | 23.6/44.8 |
| Obs Airmass | 1.00 |
| 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 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.059 |
| Power law αν | -1.96 ± 0.04 |
| log L5100,AGN | 42.01 ± 0.06 |
| log HβBr/[O III] | 0.22 ± 0.02 |
| log ML5100/M☉ | 7.29 ± 0.12 |
| log MHα/M☉ | 6.91 ± 0.04 |
| log MHβ/M☉ | 7.60 ± 0.12 |
| log M[O III]/M☉ | 7.62 ± 0.12 |
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 | 39.69 ± 0.11 | 838 ± 63 | 289 ± 25 | 24.35 ± 2.99 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 38.97 ± 0.35 | 471 ± 63 | 199 ± 25 | 4.68 ± 2.54 |
| He II Narrow | 38.85 ± 0.39 | 471 ± 63 | 199 ± 25 | 3.57 ± 2.03 |
| He II Broad | 39.65 ± 0.20 | 3047 ± 64 | 1294 ± 25 | 22.40 ± 5.49 |
| Hβ Narrow | 39.96 ± 0.06 | 838 ± 63 | 289 ± 25 | 45.60 ± 2.54 |
| Hβ Broad | 40.95 ± 0.02 | 4192 ± 533 | 3630 ± 70 | 444.36 ± 10.63 |
| [O III] 5007 | 40.72 ± 0.01 | 838 ± 63 | 289 ± 25 | 264.88 ± 2.49 |
| He I Narrow | 38.47 ± 0.44 | 471 ± 63 | 199 ± 25 | 1.50 ± 1.34 |
| He I Broad | 38.94 ± 0.37 | 1467 ± 63 | 623 ± 25 | 4.35 ± 2.58 |
| [O I] 6300 | 39.81 ± 0.03 | 471 ± 63 | 199 ± 25 | 32.71 ± 1.36 |
| Hα Narrow | 40.41 ± 0.02 | 471 ± 63 | 199 ± 25 | 129.15 ± 1.70 |
| Hα Broad | 41.27 ± 0.01 | 2666 ± 64 | 1150 ± 26 | 943.70 ± 5.02 |
| [N II] 6585 | 40.46 ± 0.01 | 471 ± 63 | 199 ± 25 | 144.49 ± 1.62 |
| [S II] 6718 | 40.13 ± 0.01 | 471 ± 63 | 199 ± 25 | 67.66 ± 1.49 |
| [S II] 6732 | 40.07 ± 0.02 | 471 ± 63 | 199 ± 25 | 60.11 ± 1.51 |
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 | 17.29 |
|---|---|
| Hβ Broad SNR | 4.71 |
| Hγ Broad SNR | 0.82 |
| AGN frac | 0.06 |
| Host frac | 0.94 |
| log L5100,Host | 43.21 |
| Fe II/Hβ | 0.84 |
| Fe II/[O III] | 1.40 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 0 |
balmer_snr | 2 |
hb_width | 2 |
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.