LEDA 3816991
Observation
| Spectrum ID | 102492345_sp1 |
|---|---|
| Alt name | g1358318-242903 |
| z | 0.0376 |
| RA, Dec | 209.6325, -24.4841 |
| MJD | 60381.69 |
| SNR/Å B/R | 19.9/31.5 |
| Obs Airmass | 1.01 |
| SMSS ID | 102492345 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.2 ± 0.1 |
| 2MASS Kext | 11.8 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.057 |
| Power law αν | -1.85 ± 0.13 |
| log L5100,AGN | 42.15 ± 0.08 |
| log HβBr/[O III] | 0.24 ± 0.04 |
| log ML5100/M☉ | 7.83 ± 0.07 |
| log MHα/M☉ | 7.49 ± 0.04 |
| log MHβ/M☉ | 7.96 ± 0.07 |
| log M[O III]/M☉ | 7.96 ± 0.07 |
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 | 39.15 ± 0.22 | 227 ± 63 | 108 ± 25 | 5.04 ± 1.53 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.08 ± 0.24 | 220 ± 63 | 93 ± 25 | 4.35 ± 1.24 |
| He II Broad | 39.48 ± 0.23 | 1179 ± 62 | 500 ± 25 | 10.82 ± 2.98 |
| Hβ Narrow | 39.57 ± 0.07 | 227 ± 63 | 108 ± 25 | 13.32 ± 1.31 |
| Hβ Broad | 40.70 ± 0.03 | 7228 ± 360 | 2774 ± 38 | 178.50 ± 7.38 |
| [O III] 5007 | 40.46 ± 0.01 | 227 ± 63 | 108 ± 25 | 104.55 ± 1.47 |
| He I Narrow | 38.54 ± 0.43 | 220 ± 63 | 93 ± 25 | 1.29 ± 0.98 |
| He I Broad | 39.96 ± 0.08 | 2913 ± 65 | 1237 ± 26 | 34.26 ± 3.61 |
| [O I] 6300 | 39.07 ± 0.17 | 220 ± 63 | 93 ± 25 | 4.41 ± 0.97 |
| Hα Narrow | 40.09 ± 0.02 | 220 ± 63 | 93 ± 25 | 47.05 ± 1.03 |
| Hα Broad | 41.17 ± 0.01 | 5551 ± 67 | 2068 ± 25 | 566.06 ± 5.39 |
| [N II] 6585 | 40.22 ± 0.01 | 220 ± 63 | 93 ± 25 | 63.65 ± 1.21 |
| [S II] 6718 | 39.68 ± 0.04 | 220 ± 63 | 93 ± 25 | 18.32 ± 1.01 |
| [S II] 6732 | 39.69 ± 0.04 | 220 ± 63 | 93 ± 25 | 18.51 ± 1.08 |
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 | 5.83 |
|---|---|
| Hβ Broad SNR | 2.02 |
| Hγ Broad SNR | 0.66 |
| AGN frac | 0.08 |
| Host frac | 0.92 |
| log L5100,Host | 43.22 |
| Fe II/Hβ | 0.99 |
| Fe II/[O III] | 1.70 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
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.