LEDA 1149537
Observation
| Spectrum ID | 194300354_sp1 |
|---|---|
| Alt name | g1630074-001136 |
| z | 0.0465 |
| RA, Dec | 247.5308, -0.1935 |
| MJD | 59725.6 |
| SNR/Å B/R | 11.6/26.7 |
| Obs Airmass | 1.17 |
| SMSS ID | 194300354 |
| Closest SMSS | 8.62'', 194300359 |
| SMSS Mean r6"ap | 16.7 ± 0.1 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.085 |
| Power law αν | -1.95 ± 0.05 |
| log L5100,AGN | 42.53 ± 0.06 |
| log HβBr/[O III] | -0.08 ± 0.06 |
| log ML5100/M☉ | 8.05 ± 0.20 |
| log MHα/M☉ | 7.14 ± 0.04 |
| log MHβ/M☉ | 8.14 ± 0.20 |
| log M[O III]/M☉ | 8.31 ± 0.20 |
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 | 39.61 ± 0.20 | 203 ± 62 | 99 ± 26 | 6.11 ± 1.79 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.56 ± 0.20 | 195 ± 62 | 82 ± 25 | 5.49 ± 1.53 |
| He II Narrow | 39.47 ± 0.21 | 195 ± 62 | 82 ± 25 | 4.52 ± 1.27 |
| He II Broad | 40.59 ± 0.10 | 7610 ± 73 | 3232 ± 30 | 59.35 ± 8.11 |
| Hβ Narrow | 40.21 ± 0.04 | 203 ± 62 | 99 ± 26 | 24.44 ± 1.60 |
| Hβ Broad | 40.96 ± 0.06 | 7719 ± 1667 | 3523 ± 229 | 139.01 ± 9.49 |
| [O III] 5007 | 41.04 ± 0.01 | 203 ± 62 | 99 ± 26 | 166.11 ± 1.50 |
| He I Narrow | 38.77 ± 0.41 | 195 ± 62 | 82 ± 25 | 0.91 ± 0.63 |
| He I Broad | 39.72 ± 0.21 | 2046 ± 89 | 869 ± 37 | 8.00 ± 2.09 |
| [O I] 6300 | 39.51 ± 0.09 | 195 ± 62 | 82 ± 25 | 4.99 ± 0.63 |
| Hα Narrow | 40.69 ± 0.01 | 195 ± 62 | 82 ± 25 | 76.17 ± 0.97 |
| Hα Broad | 41.17 ± 0.01 | 3727 ± 123 | 1494 ± 39 | 228.63 ± 3.52 |
| [N II] 6585 | 40.56 ± 0.01 | 195 ± 62 | 82 ± 25 | 56.15 ± 0.80 |
| [S II] 6718 | 40.16 ± 0.02 | 195 ± 62 | 82 ± 25 | 22.25 ± 0.75 |
| [S II] 6732 | 40.09 ± 0.03 | 195 ± 62 | 82 ± 25 | 19.02 ± 0.68 |
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 | 3.44 |
|---|---|
| Hβ Broad SNR | 1.31 |
| Hγ Broad SNR | 0.77 |
| AGN frac | 0.13 |
| Host frac | 0.87 |
| log L5100,Host | 43.35 |
| Fe II/Hβ | 0.37 |
| Fe II/[O III] | 0.31 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.