LEDA 947591
Observation
| Spectrum ID | 14423812_sp1 |
|---|---|
| Alt name | g0203490-124717 |
| z | 0.0523 |
| RA, Dec | 30.9543, -12.7880 |
| MJD | 60206.66 |
| SNR/Å B/R | 17.3/28.7 |
| Obs Airmass | 1.06 |
| SMSS ID | 14423812 |
| Closest SMSS | 4.81'', 2026285101 |
| SMSS Mean r6"ap | 16.4 ± 0.0 |
| 2MASS Kext | 12.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.017 |
| Power law αν | -0.94 ± 0.14 |
| log L5100,AGN | 43.06 ± 0.03 |
| log HβBr/[O III] | 0.59 ± 0.04 |
| log ML5100/M☉ | 6.77 ± 0.04 |
| log MHα/M☉ | 6.47 ± 0.05 |
| log MHβ/M☉ | 6.61 ± 0.05 |
| log M[O III]/M☉ | 6.45 ± 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 | 39.97 ± 0.11 | 711 ± 66 | 251 ± 26 | 3.46 ± 0.33 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.04 ± 0.33 | 238 ± 63 | 100 ± 25 | 0.41 ± 0.23 |
| He II Narrow | 38.80 ± 0.43 | 238 ± 63 | 100 ± 25 | 0.25 ± 0.22 |
| He II Broad | 40.13 ± 0.11 | 2563 ± 71 | 1088 ± 29 | 5.42 ± 0.77 |
| Hβ Narrow | 39.93 ± 0.13 | 711 ± 66 | 251 ± 26 | 3.62 ± 0.33 |
| Hβ Broad | 40.91 ± 0.02 | 1370 ± 50 | 552 ± 27 | 33.81 ± 0.70 |
| [O III] 5007 | 40.31 ± 0.03 | 711 ± 66 | 251 ± 26 | 8.97 ± 0.34 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.29 ± 0.05 | 3005 ± 72 | 1276 ± 29 | 9.86 ± 0.69 |
| [O I] 6300 | 39.38 ± 0.10 | 238 ± 63 | 100 ± 25 | 1.33 ± 0.19 |
| Hα Narrow | 40.57 ± 0.02 | 238 ± 63 | 100 ± 25 | 21.43 ± 0.32 |
| Hα Broad | 41.56 ± 0.01 | 1319 ± 64 | 568 ± 25 | 207.93 ± 0.89 |
| [N II] 6585 | 40.36 ± 0.02 | 238 ± 63 | 100 ± 25 | 13.38 ± 0.27 |
| [S II] 6718 | 39.88 ± 0.04 | 238 ± 63 | 100 ± 25 | 4.46 ± 0.23 |
| [S II] 6732 | 39.84 ± 0.04 | 238 ± 63 | 100 ± 25 | 4.13 ± 0.22 |
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 | 35.28 |
|---|---|
| Hβ Broad SNR | 10.55 |
| Hγ Broad SNR | 0.81 |
| AGN frac | 0.50 |
| Host frac | 0.50 |
| log L5100,Host | 43.06 |
| Fe II/Hβ | 1.98 |
| Fe II/[O III] | 7.72 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
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.