LEDA 163530
Observation
| Spectrum ID | 3979095_sp1 |
|---|---|
| Alt name | g2158596-175245 |
| z | 0.0938 |
| RA, Dec | 329.7485, -17.8793 |
| MJD | 60091.77 |
| SNR/Å B/R | 14.2/20.6 |
| Obs Airmass | 1.07 |
| SMSS ID | 3979095 |
| Closest SMSS | 6.31'', 2006997536 |
| SMSS Mean r6"ap | 15.8 ± 0.2 |
| 2MASS Kext | 11.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.039 |
| Power law αν | 0.48 ± 0.01 |
| log L5100,AGN | 43.87 ± 0.01 |
| log HβBr/[O III] | 1.05 ± 0.03 |
| log ML5100/M☉ | 8.89 ± 0.02 |
| log MHα/M☉ | 8.61 ± 0.03 |
| log MHβ/M☉ | 9.02 ± 0.02 |
| log M[O III]/M☉ | 8.69 ± 0.03 |
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 | 40.13 ± 0.45 | 770 ± 67 | 322 ± 25 | 0.62 ± 0.35 |
| Hγ Broad | 40.87 ± 0.17 | 1873 ± 130 | 705 ± 50 | 2.83 ± 0.60 |
| [O III] 4364 | 40.73 ± 0.10 | 548 ± 63 | 232 ± 25 | 2.51 ± 0.34 |
| He II Narrow | 39.95 ± 0.43 | 548 ± 63 | 232 ± 25 | 0.50 ± 0.33 |
| He II Broad | 40.49 ± 0.30 | 2157 ± 64 | 916 ± 26 | 1.72 ± 0.66 |
| Hβ Narrow | 39.98 ± 0.46 | 770 ± 67 | 322 ± 25 | 0.59 ± 0.48 |
| Hβ Broad | 42.34 ± 0.01 | 10490 ± 232 | 3889 ± 25 | 134.52 ± 2.16 |
| [O III] 5007 | 41.29 ± 0.03 | 770 ± 67 | 322 ± 25 | 12.73 ± 0.51 |
| He I Narrow | 39.74 ± 0.41 | 548 ± 63 | 232 ± 25 | 0.53 ± 0.36 |
| He I Broad | 41.47 ± 0.04 | 6882 ± 63 | 2922 ± 25 | 28.89 ± 1.43 |
| [O I] 6300 | 40.15 ± 0.22 | 548 ± 63 | 232 ± 25 | 1.66 ± 0.51 |
| Hα Narrow | 41.37 ± 0.02 | 548 ± 63 | 232 ± 25 | 30.31 ± 0.67 |
| Hα Broad | 42.67 ± 0.01 | 7047 ± 78 | 2482 ± 25 | 604.56 ± 2.28 |
| [N II] 6585 | 41.44 ± 0.02 | 548 ± 63 | 232 ± 25 | 36.20 ± 0.68 |
| [S II] 6718 | 40.68 ± 0.08 | 548 ± 63 | 232 ± 25 | 6.61 ± 0.68 |
| [S II] 6732 | 40.53 ± 0.10 | 548 ± 63 | 232 ± 25 | 4.64 ± 0.68 |
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 | 13.89 |
|---|---|
| Hβ Broad SNR | 5.75 |
| Hγ Broad SNR | 1.23 |
| AGN frac | 0.64 |
| Host frac | 0.36 |
| log L5100,Host | 43.61 |
| Fe II/Hβ | 0.50 |
| Fe II/[O III] | 5.64 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.