LEDA 1145145
Observation
| Spectrum ID | 4970312_sp1 |
|---|---|
| Alt name | g2124019-002159 |
| z | 0.0620 |
| RA, Dec | 321.0079, -0.3663 |
| MJD | 60913.52 |
| SNR/Å B/R | 12.0/22.8 |
| Obs Airmass | 1.19 |
| SMSS ID | 4970312 |
| Closest SMSS | 9.82'', 4970296 |
| SMSS Mean r6"ap | 16.3 ± 0.0 |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.042 |
| Power law αν | -1.23 ± 0.12 |
| log L5100,AGN | 42.90 ± 0.04 |
| 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 | 40.00 ± 0.12 | 271 ± 63 | 144 ± 26 | 5.62 ± 1.08 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.28 ± 0.37 | 231 ± 62 | 97 ± 25 | 1.15 ± 0.73 |
| He II Broad | 40.24 ± 0.18 | 2373 ± 65 | 1007 ± 26 | 10.46 ± 2.32 |
| Hβ Narrow | 40.51 ± 0.04 | 271 ± 63 | 144 ± 26 | 19.82 ± 1.02 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 40.95 ± 0.02 | 271 ± 63 | 144 ± 26 | 56.21 ± 1.12 |
| He I Narrow | 39.43 ± 0.20 | 231 ± 62 | 97 ± 25 | 1.95 ± 0.53 |
| He I Broad | 40.48 ± 0.08 | 4055 ± 65 | 1722 ± 26 | 21.48 ± 2.28 |
| [O I] 6300 | 39.74 ± 0.09 | 231 ± 62 | 97 ± 25 | 4.19 ± 0.52 |
| Hα Narrow | 41.32 ± 0.01 | 231 ± 62 | 97 ± 25 | 111.85 ± 0.71 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 41.10 ± 0.01 | 231 ± 62 | 97 ± 25 | 66.30 ± 0.65 |
| [S II] 6718 | 40.49 ± 0.02 | 231 ± 62 | 97 ± 25 | 24.88 ± 0.73 |
| [S II] 6732 | 40.41 ± 0.03 | 231 ± 62 | 97 ± 25 | 20.45 ± 0.66 |
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 | 0.00 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.22 |
| Host frac | 0.78 |
| log L5100,Host | 43.46 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.59 |
Quality flags
spurious_hab/hbb | 1.0/0 |
|---|---|
l5100 | 1 |
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.