LEDA 83009
Observation
| Spectrum ID | 83414158_sp1 |
|---|---|
| Alt name | g1028280-353054 |
| z | 0.0655 |
| RA, Dec | 157.1168, -35.5149 |
| MJD | 59349.43 |
| SNR/Å B/R | 13.3/31.2 |
| Obs Airmass | 1.04 |
| SMSS ID | 83414158 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 0.1 |
| 2MASS Kext | 12.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.071 |
| Power law αν | 0.20 ± 0.20 |
| log L5100,AGN | 43.21 ± 0.04 |
| log HβBr/[O III] | 0.22 ± 0.03 |
| log ML5100/M☉ | 8.24 ± 0.06 |
| log MHα/M☉ | 7.78 ± 0.02 |
| log MHβ/M☉ | 8.26 ± 0.07 |
| log M[O III]/M☉ | 8.29 ± 0.06 |
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 | 39.58 ± 0.38 | 411 ± 63 | 354 ± 37 | 0.85 ± 0.77 |
| Hγ Broad | 40.83 ± 0.09 | 4622 ± 350 | 1742 ± 135 | 14.45 ± 1.67 |
| [O III] 4364 | 39.67 ± 0.28 | 374 ± 63 | 158 ± 25 | 1.05 ± 0.43 |
| He II Narrow | 39.38 ± 0.38 | 374 ± 63 | 158 ± 25 | 0.63 ± 0.44 |
| He II Broad | 40.25 ± 0.20 | 3161 ± 173 | 1342 ± 73 | 4.88 ± 1.29 |
| Hβ Narrow | 40.38 ± 0.07 | 411 ± 63 | 355 ± 37 | 6.90 ± 0.97 |
| Hβ Broad | 41.44 ± 0.02 | 6871 ± 466 | 2655 ± 97 | 79.23 ± 2.40 |
| [O III] 5007 | 41.22 ± 0.02 | 411 ± 63 | 355 ± 37 | 51.08 ± 1.07 |
| He I Narrow | 39.55 ± 0.21 | 374 ± 63 | 158 ± 25 | 1.52 ± 0.40 |
| He I Broad | 40.48 ± 0.08 | 3338 ± 222 | 1418 ± 94 | 13.17 ± 1.26 |
| [O I] 6300 | 40.19 ± 0.04 | 374 ± 63 | 158 ± 25 | 7.85 ± 0.46 |
| Hα Narrow | 41.00 ± 0.01 | 374 ± 63 | 158 ± 25 | 55.11 ± 0.61 |
| Hα Broad | 42.02 ± 0.01 | 4293 ± 75 | 1843 ± 44 | 573.41 ± 2.86 |
| [N II] 6585 | 40.98 ± 0.01 | 374 ± 63 | 158 ± 25 | 52.35 ± 0.60 |
| [S II] 6718 | 40.63 ± 0.02 | 374 ± 63 | 158 ± 25 | 24.63 ± 0.57 |
| [S II] 6732 | 40.47 ± 0.02 | 374 ± 63 | 158 ± 25 | 17.23 ± 0.59 |
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 | 13.87 |
|---|---|
| Hβ Broad SNR | 3.32 |
| Hγ Broad SNR | 1.38 |
| AGN frac | 0.36 |
| Host frac | 0.64 |
| log L5100,Host | 43.46 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
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.