LEDA 343763
Observation
| Spectrum ID | 486387854_sp1 |
|---|---|
| Alt name | g2135295-623007 |
| z | 0.0605 |
| RA, Dec | 323.8729, -62.5020 |
| MJD | 60080.8 |
| SNR/Å B/R | 17.2/25.9 |
| Obs Airmass | 1.18 |
| SMSS ID | 486387854 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.8 ± 0.0 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.033 |
| Power law αν | -0.41 ± 0.15 |
| log L5100,AGN | 43.63 ± 0.02 |
| log HβBr/[O III] | 0.45 ± 0.03 |
| log ML5100/M☉ | 6.99 ± 0.02 |
| log MHα/M☉ | 6.89 ± 0.04 |
| log MHβ/M☉ | 6.91 ± 0.03 |
| log M[O III]/M☉ | 6.85 ± 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 | 40.23 ± 0.29 | 493 ± 63 | 471 ± 31 | 1.58 ± 0.43 |
| Hγ Broad | 40.87 ± 0.08 | 1197 ± 64 | 409 ± 25 | 6.42 ± 0.42 |
| [O III] 4364 | 39.76 ± 0.29 | 462 ± 63 | 196 ± 25 | 0.53 ± 0.24 |
| He II Narrow | 40.31 ± 0.09 | 462 ± 63 | 196 ± 25 | 2.10 ± 0.25 |
| He II Broad | 41.40 ± 0.06 | 17659 ± 63 | 7499 ± 25 | 26.11 ± 1.64 |
| Hβ Narrow | 40.76 ± 0.09 | 493 ± 63 | 471 ± 31 | 6.42 ± 0.46 |
| Hβ Broad | 41.64 ± 0.02 | 1323 ± 32 | 1218 ± 45 | 47.94 ± 1.01 |
| [O III] 5007 | 41.19 ± 0.02 | 493 ± 63 | 471 ± 31 | 17.82 ± 0.48 |
| He I Narrow | 39.80 ± 0.19 | 462 ± 63 | 196 ± 25 | 0.95 ± 0.25 |
| He I Broad | 41.16 ± 0.04 | 6693 ± 70 | 2842 ± 28 | 21.42 ± 1.01 |
| [O I] 6300 | 39.69 ± 0.21 | 462 ± 63 | 196 ± 25 | 0.82 ± 0.25 |
| Hα Narrow | 41.49 ± 0.01 | 462 ± 63 | 196 ± 25 | 54.35 ± 0.42 |
| Hα Broad | 42.03 ± 0.01 | 1527 ± 65 | 725 ± 25 | 190.77 ± 1.08 |
| [N II] 6585 | 40.96 ± 0.02 | 462 ± 63 | 196 ± 25 | 16.48 ± 0.37 |
| [S II] 6718 | 40.57 ± 0.03 | 462 ± 63 | 196 ± 25 | 6.79 ± 0.31 |
| [S II] 6732 | 40.43 ± 0.04 | 462 ± 63 | 196 ± 25 | 4.95 ± 0.31 |
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 | 27.88 |
|---|---|
| Hβ Broad SNR | 13.52 |
| Hγ Broad SNR | 4.29 |
| AGN frac | 0.63 |
| Host frac | 0.37 |
| log L5100,Host | 43.39 |
| Fe II/Hβ | 1.29 |
| Fe II/[O III] | 3.62 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.