LEDA 690889
Observation
| Spectrum ID | 119894635_sp2 |
|---|---|
| Alt name | g1609040-322944 |
| z | 0.0361 |
| RA, Dec | 242.2665, -32.4954 |
| MJD | 61124.65 |
| SNR/Å B/R | 4.0/10.6 |
| Obs Airmass | 1.18 |
| SMSS ID | 119894635 |
| Closest SMSS | 8.55'', 119894637 |
| SMSS Mean r6"ap | 17.8 ± 0.0 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.195 |
| Power law αν | -0.27 ± 0.32 |
| log L5100,AGN | 41.86 ± 0.11 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 38.98 ± 0.33 | 214 ± 63 | 105 ± 31 | 4.83 ± 4.71 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 38.84 ± 0.35 | 199 ± 62 | 84 ± 25 | 4.21 ± 2.23 |
| He II Broad | 39.52 ± 0.35 | 3050 ± 62 | 1295 ± 25 | 19.95 ± 9.86 |
| Hβ Narrow | 39.26 ± 0.15 | 214 ± 63 | 105 ± 31 | 11.36 ± 3.40 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 39.39 ± 0.11 | 214 ± 63 | 105 ± 31 | 15.81 ± 3.91 |
| He I Narrow | 38.53 ± 0.45 | 199 ± 62 | 84 ± 25 | 3.06 ± 2.34 |
| He I Broad | 40.52 ± 0.08 | 17660 ± 62 | 7500 ± 25 | 295.18 ± 26.69 |
| [O I] 6300 | 38.85 ± 0.22 | 199 ± 62 | 84 ± 25 | 7.18 ± 2.59 |
| Hα Narrow | 40.00 ± 0.02 | 199 ± 62 | 84 ± 25 | 107.96 ± 2.86 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 39.66 ± 0.05 | 199 ± 62 | 84 ± 25 | 50.35 ± 2.89 |
| [S II] 6718 | 39.31 ± 0.10 | 199 ± 62 | 84 ± 25 | 23.41 ± 3.07 |
| [S II] 6732 | 39.39 ± 0.09 | 199 ± 62 | 84 ± 25 | 27.78 ± 3.18 |
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 | 0.33 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.17 |
| Host frac | 0.83 |
| log L5100,Host | 42.55 |
| Fe II/Hβ | — |
| Fe II/[O III] | 3.18 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.