LEDA 188965
Observation
| Spectrum ID | 311215_sp1 |
|---|---|
| Alt name | g2132022-334254 |
| z | 0.0300 |
| RA, Dec | 323.0092, -33.7149 |
| MJD | 60167.55 |
| SNR/Å B/R | 10.6/17.4 |
| Obs Airmass | 1.03 |
| SMSS ID | 311215 |
| Closest SMSS | 9.94'', 311216 |
| SMSS Mean r6"ap | 15.5 ± 0.3 |
| 2MASS Kext | 11.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.047 |
| Power law αν | -0.07 ± 0.22 |
| log L5100,AGN | 43.15 ± 0.04 |
| log HβBr/[O III] | 0.09 ± 0.07 |
| log ML5100/M☉ | 7.99 ± 0.18 |
| log MHα/M☉ | 8.10 ± 0.02 |
| log MHβ/M☉ | 8.03 ± 0.18 |
| log M[O III]/M☉ | 8.13 ± 0.18 |
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 | 39.84 ± 0.15 | 335 ± 63 | 200 ± 27 | 1.84 ± 0.42 |
| Hγ Broad | 40.73 ± 0.08 | 4293 ± 508 | 1590 ± 178 | 15.70 ± 1.03 |
| [O III] 4364 | 40.11 ± 0.08 | 318 ± 65 | 133 ± 26 | 3.50 ± 0.31 |
| He II Narrow | 39.53 ± 0.23 | 318 ± 65 | 133 ± 26 | 1.06 ± 0.26 |
| He II Broad | 40.04 ± 0.15 | 1225 ± 80 | 520 ± 33 | 3.29 ± 0.52 |
| Hβ Narrow | 40.32 ± 0.06 | 335 ± 63 | 200 ± 27 | 6.72 ± 0.36 |
| Hβ Broad | 41.44 ± 0.07 | 5305 ± 1123 | 2179 ± 463 | 89.57 ± 1.27 |
| [O III] 5007 | 41.35 ± 0.01 | 335 ± 63 | 200 ± 27 | 77.34 ± 0.49 |
| He I Narrow | 39.49 ± 0.17 | 318 ± 65 | 133 ± 26 | 1.49 ± 0.23 |
| He I Broad | 39.92 ± 0.27 | 1513 ± 571 | 642 ± 242 | 3.39 ± 0.52 |
| [O I] 6300 | 40.18 ± 0.03 | 318 ± 65 | 133 ± 26 | 8.24 ± 0.30 |
| Hα Narrow | 40.87 ± 0.03 | 318 ± 65 | 133 ± 26 | 44.21 ± 0.52 |
| Hα Broad | 42.15 ± 0.01 | 5624 ± 118 | 2279 ± 25 | 830.36 ± 1.76 |
| [N II] 6585 | 40.14 ± 0.14 | 318 ± 65 | 133 ± 26 | 8.32 ± 0.45 |
| [S II] 6718 | 39.88 ± 0.07 | 318 ± 65 | 133 ± 26 | 4.67 ± 0.35 |
| [S II] 6732 | 39.95 ± 0.06 | 318 ± 65 | 133 ± 26 | 5.58 ± 0.34 |
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 | 26.49 |
|---|---|
| Hβ Broad SNR | 7.34 |
| Hγ Broad SNR | 2.38 |
| AGN frac | 0.75 |
| Host frac | 0.25 |
| log L5100,Host | 42.67 |
| Fe II/Hβ | 0.11 |
| Fe II/[O III] | 0.14 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.