LEDA 3093962
Observation
| Spectrum ID | 3905070_sp1 |
|---|---|
| Alt name | g2142147-162948 |
| z | 0.0516 |
| RA, Dec | 325.5612, -16.4967 |
| MJD | 60168.56 |
| SNR/Å B/R | 15.1/28.2 |
| Obs Airmass | 1.07 |
| SMSS ID | 3905070 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.0 ± 0.0 |
| 2MASS Kext | 12.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.037 |
| Power law αν | -1.68 ± 0.15 |
| log L5100,AGN | 42.79 ± 0.10 |
| log HβBr/[O III] | <-0.40 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.82 ± 0.04 |
| 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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.37 ± 0.27 | 365 ± 62 | 154 ± 25 | 1.83 ± 0.74 |
| He II Narrow | 39.22 ± 0.37 | 365 ± 62 | 154 ± 25 | 1.33 ± 0.69 |
| He II Broad | 39.34 ± 0.45 | 1317 ± 62 | 559 ± 25 | 1.73 ± 1.29 |
| Hβ Narrow | 40.28 ± 0.05 | 367 ± 63 | 156 ± 25 | 14.96 ± 0.76 |
| Hβ Broad | <40.26 | — | — | — |
| [O III] 5007 | 40.66 ± 0.01 | 367 ± 63 | 156 ± 25 | 36.58 ± 0.79 |
| He I Narrow | 39.49 ± 0.14 | 365 ± 62 | 154 ± 25 | 2.62 ± 0.47 |
| He I Broad | 40.45 ± 0.07 | 5515 ± 62 | 2342 ± 25 | 24.25 ± 1.96 |
| [O I] 6300 | 39.66 ± 0.09 | 365 ± 62 | 154 ± 25 | 3.98 ± 0.47 |
| Hα Narrow | 41.05 ± 0.01 | 365 ± 62 | 154 ± 25 | 99.58 ± 0.68 |
| Hα Broad | 41.23 ± 0.02 | 2465 ± 77 | 2066 ± 74 | 149.67 ± 3.01 |
| [N II] 6585 | 40.81 ± 0.01 | 365 ± 62 | 154 ± 25 | 57.27 ± 0.64 |
| [S II] 6718 | 40.28 ± 0.02 | 365 ± 62 | 154 ± 25 | 16.75 ± 0.52 |
| [S II] 6732 | 40.22 ± 0.03 | 365 ± 62 | 154 ± 25 | 14.83 ± 0.54 |
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 | 5.39 |
|---|---|
| Hβ Broad SNR | 0.53 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.23 |
| Host frac | 0.77 |
| log L5100,Host | 43.32 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.35 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
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.