LEDA 73791
Observation
| Spectrum ID | 9171635_sp1 |
|---|---|
| Alt name | g0111512-404544 |
| z | 0.0543 |
| RA, Dec | 17.9632, -40.7620 |
| MJD | 60178.72 |
| SNR/Å B/R | 13.7/21.7 |
| Obs Airmass | 1.01 |
| SMSS ID | 9171635 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.8 ± 0.1 |
| 2MASS Kext | 13.3 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.012 |
| Power law αν | 0.13 ± 0.16 |
| log L5100,AGN | 42.93 ± 0.03 |
| log HβBr/[O III] | -0.15 ± 0.27 |
| log ML5100/M☉ | 7.36 ± 0.03 |
| log MHα/M☉ | 6.79 ± 0.04 |
| log MHβ/M☉ | 7.22 ± 0.14 |
| log M[O III]/M☉ | 7.42 ± 0.04 |
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 | 39.80 ± 0.11 | 266 ± 63 | 226 ± 26 | 2.64 ± 0.44 |
| Hγ Broad | 40.64 ± 0.04 | 3088 ± 122 | 1004 ± 32 | 18.25 ± 0.78 |
| [O III] 4364 | 39.48 ± 0.14 | 212 ± 63 | 89 ± 25 | 1.28 ± 0.24 |
| He II Narrow | 38.94 ± 0.34 | 212 ± 63 | 89 ± 25 | 0.43 ± 0.25 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.34 ± 0.03 | 266 ± 63 | 226 ± 26 | 11.59 ± 0.49 |
| Hβ Broad | 40.83 +0.51−0.03 | 2859 ± 75 | 1072 ± 34 | 36.40 ± 1.05 |
| [O III] 5007 | 40.98 ± 0.01 | 266 ± 63 | 226 ± 26 | 54.82 ± 0.55 |
| He I Narrow | 39.07 ± 0.16 | 212 ± 63 | 89 ± 25 | 0.95 ± 0.22 |
| He I Broad | 40.61 ± 0.03 | 4608 ± 130 | 1957 ± 55 | 32.46 ± 1.21 |
| [O I] 6300 | 39.65 ± 0.04 | 212 ± 63 | 89 ± 25 | 4.15 ± 0.26 |
| Hα Narrow | 40.61 ± 0.01 | 212 ± 63 | 89 ± 25 | 41.67 ± 0.46 |
| Hα Broad | 41.48 ± 0.01 | 1983 ± 64 | 980 ± 38 | 310.33 ± 2.59 |
| [N II] 6585 | 40.20 ± 0.02 | 212 ± 63 | 89 ± 25 | 16.36 ± 0.41 |
| [S II] 6718 | 40.06 ± 0.02 | 212 ± 63 | 89 ± 25 | 12.30 ± 0.33 |
| [S II] 6732 | 39.98 ± 0.02 | 212 ± 63 | 89 ± 25 | 10.21 ± 0.45 |
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 | 19.90 |
|---|---|
| Hβ Broad SNR | 4.88 |
| Hγ Broad SNR | 3.70 |
| AGN frac | 0.53 |
| Host frac | 0.47 |
| log L5100,Host | 42.88 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
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.