LEDA 155508
Observation
| Spectrum ID | 92349617_sp1 |
|---|---|
| Alt name | g1038209-100660 |
| z | 0.0290 |
| RA, Dec | 159.5869, -10.1168 |
| MJD | 59732.39 |
| SNR/Å B/R | 17.4/39.9 |
| Obs Airmass | 1.15 |
| SMSS ID | 92349617 |
| Closest SMSS | 13.02'', 92349616 |
| SMSS Mean r6"ap | 15.9 ± 0.1 |
| 2MASS Kext | 11.5 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.034 |
| Power law αν | -1.89 ± 0.10 |
| log L5100,AGN | 42.43 ± 0.03 |
| log HβBr/[O III] | 0.27 ± 0.02 |
| log ML5100/M☉ | 7.72 ± 0.04 |
| log MHα/M☉ | 7.49 ± 0.03 |
| log MHβ/M☉ | 7.81 ± 0.05 |
| log M[O III]/M☉ | 7.80 ± 0.05 |
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 | 39.43 ± 0.17 | 324 ± 63 | 341 ± 29 | 5.06 ± 1.74 |
| Hγ Broad | 40.19 ± 0.09 | 1726 ± 541 | 1160 ± 116 | 28.79 ± 2.90 |
| [O III] 4364 | 39.19 ± 0.24 | 305 ± 63 | 129 ± 25 | 2.89 ± 0.79 |
| He II Narrow | 38.75 ± 0.34 | 305 ± 63 | 129 ± 25 | 1.07 ± 0.64 |
| He II Broad | 39.70 ± 0.21 | 5173 ± 259 | 2197 ± 109 | 9.15 ± 2.62 |
| Hβ Narrow | 39.72 ± 0.06 | 324 ± 63 | 341 ± 29 | 9.87 ± 1.33 |
| Hβ Broad | 40.85 ± 0.02 | 5591 ± 185 | 1898 ± 33 | 135.50 ± 2.65 |
| [O III] 5007 | 40.59 ± 0.01 | 324 ± 63 | 341 ± 29 | 73.68 ± 1.34 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.04 ± 0.04 | 3211 ± 154 | 1363 ± 65 | 20.67 ± 1.18 |
| [O I] 6300 | 39.64 ± 0.03 | 305 ± 63 | 129 ± 25 | 8.60 ± 0.37 |
| Hα Narrow | 40.15 ± 0.01 | 305 ± 63 | 129 ± 25 | 27.40 ± 0.40 |
| Hα Broad | 41.48 ± 0.01 | 4492 ± 71 | 1854 ± 25 | 588.83 ± 1.77 |
| [N II] 6585 | 40.22 ± 0.01 | 305 ± 63 | 129 ± 25 | 32.31 ± 0.41 |
| [S II] 6718 | 39.89 ± 0.02 | 305 ± 63 | 129 ± 25 | 15.30 ± 0.41 |
| [S II] 6732 | 39.81 ± 0.02 | 305 ± 63 | 129 ± 25 | 12.66 ± 0.39 |
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 | 16.82 |
|---|---|
| Hβ Broad SNR | 5.09 |
| Hγ Broad SNR | 2.73 |
| AGN frac | 0.20 |
| Host frac | 0.80 |
| log L5100,Host | 43.02 |
| Fe II/Hβ | 0.07 |
| Fe II/[O III] | 0.12 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
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.