LEDA 90334
Observation
| Spectrum ID | 293179461_sp1 |
|---|---|
| Alt name | g1937330-061305 |
| z | 0.0104 |
| RA, Dec | 294.3877, -6.2179 |
| MJD | 60082.7 |
| SNR/Å B/R | 5.8/7.6 |
| Obs Airmass | 1.15 |
| SMSS ID | 293179461 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.3 ± 0.0 |
| 2MASS Kext | 9.7 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.249 |
| Power law αν | -0.84 ± 0.23 |
| log L5100,AGN | 43.04 ± 0.03 |
| log HβBr/[O III] | -0.10 ± 0.05 |
| log ML5100/M☉ | 6.76 ± 0.09 |
| log MHα/M☉ | 6.56 ± 0.07 |
| log MHβ/M☉ | 6.66 ± 0.10 |
| log M[O III]/M☉ | 6.84 ± 0.09 |
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 | 39.90 ± 0.23 | 454 ± 70 | 183 ± 27 | 2.99 ± 0.71 |
| Hγ Broad | 40.65 ± 0.09 | 1445 ± 112 | 535 ± 44 | 16.62 ± 1.27 |
| [O III] 4364 | 39.48 ± 0.34 | 331 ± 145 | 139 ± 62 | 1.43 ± 0.53 |
| He II Narrow | 39.67 ± 0.32 | 331 ± 145 | 139 ± 62 | 2.23 ± 0.45 |
| He II Broad | 40.11 ± 0.17 | 1506 ± 233 | 640 ± 99 | 5.52 ± 0.96 |
| Hβ Narrow | 40.30 ± 0.18 | 454 ± 70 | 183 ± 27 | 8.14 ± 0.64 |
| Hβ Broad | 41.02 ± 0.03 | 1363 ± 130 | 492 ± 53 | 43.63 ± 1.06 |
| [O III] 5007 | 41.12 ± 0.04 | 454 ± 70 | 183 ± 27 | 59.87 ± 0.71 |
| He I Narrow | 39.34 ± 0.37 | 331 ± 145 | 139 ± 62 | 1.51 ± 0.41 |
| He I Broad | 40.07 ± 0.14 | 1672 ± 127 | 710 ± 53 | 6.12 ± 1.15 |
| [O I] 6300 | 39.61 ± 0.19 | 331 ± 145 | 139 ± 62 | 2.90 ± 0.45 |
| Hα Narrow | 40.69 ± 0.27 | 331 ± 145 | 139 ± 62 | 33.25 ± 0.91 |
| Hα Broad | 41.56 ± 0.04 | 1446 ± 98 | 485 ± 25 | 214.81 ± 1.41 |
| [N II] 6585 | 40.48 ± 0.25 | 331 ± 145 | 139 ± 62 | 20.67 ± 0.69 |
| [S II] 6718 | 40.15 ± 0.15 | 331 ± 145 | 139 ± 62 | 9.44 ± 0.52 |
| [S II] 6732 | 40.11 ± 0.18 | 331 ± 145 | 139 ± 62 | 8.63 ± 0.51 |
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 | 22.15 |
|---|---|
| Hβ Broad SNR | 8.77 |
| Hγ Broad SNR | 3.94 |
| AGN frac | 0.89 |
| Host frac | 0.11 |
| log L5100,Host | 42.14 |
| Fe II/Hβ | 1.34 |
| Fe II/[O III] | 1.01 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.