LEDA 92482
Observation
| Spectrum ID | 121072463_sp1 |
|---|---|
| Alt name | g1608033-283448 |
| z | 0.0479 |
| RA, Dec | 242.0136, -28.5799 |
| MJD | 59435.38 |
| SNR/Å B/R | 9.7/25.7 |
| Obs Airmass | 1.00 |
| SMSS ID | 121072463 |
| Closest SMSS | 10.74'', 121072462 |
| SMSS Mean r6"ap | 16.7 ± 0.0 |
| 2MASS Kext | 11.8 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.163 |
| Power law αν | -1.98 ± 0.02 |
| log L5100,AGN | 42.77 ± 0.03 |
| log HβBr/[O III] | <-0.97 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.43 ± 0.06 |
| 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 | 39.39 ± 0.47 | 738 ± 63 | 304 ± 25 | 2.11 ± 1.43 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.39 ± 0.36 | 597 ± 62 | 253 ± 25 | 2.13 ± 1.35 |
| He II Narrow | 39.36 ± 0.39 | 597 ± 62 | 253 ± 25 | 2.00 ± 1.14 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.26 ± 0.08 | 738 ± 63 | 304 ± 25 | 15.73 ± 1.22 |
| Hβ Broad | <40.20 | — | — | — |
| [O III] 5007 | 41.17 ± 0.01 | 738 ± 63 | 304 ± 25 | 128.21 ± 1.24 |
| He I Narrow | 39.37 ± 0.30 | 597 ± 62 | 253 ± 25 | 2.02 ± 0.52 |
| He I Broad | 39.53 ± 0.30 | 1178 ± 62 | 500 ± 25 | 2.93 ± 0.74 |
| [O I] 6300 | 39.81 ± 0.07 | 597 ± 62 | 253 ± 25 | 5.67 ± 0.53 |
| Hα Narrow | 40.81 ± 0.02 | 597 ± 62 | 253 ± 25 | 56.49 ± 0.69 |
| Hα Broad | 41.16 ± 0.02 | 1665 ± 89 | 1233 ± 27 | 125.62 ± 1.55 |
| [N II] 6585 | 40.92 ± 0.01 | 597 ± 62 | 253 ± 25 | 71.95 ± 0.67 |
| [S II] 6718 | 40.30 ± 0.02 | 597 ± 62 | 253 ± 25 | 17.23 ± 0.55 |
| [S II] 6732 | 40.28 ± 0.03 | 597 ± 62 | 253 ± 25 | 16.55 ± 0.55 |
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 | 6.29 |
|---|---|
| Hβ Broad SNR | 0.29 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.31 |
| Host frac | 0.69 |
| log L5100,Host | 43.12 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
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.