LEDA 266917
Observation
| Spectrum ID | 1610752558_sp1 |
|---|---|
| Alt name | g0017263-715032 |
| z | 0.0989 |
| RA, Dec | 4.3592, -71.8422 |
| MJD | 60164.71 |
| SNR/Å B/R | 13.1/21.4 |
| Obs Airmass | 1.31 |
| SMSS ID | 1610752558 |
| Closest SMSS | 13.24'', 2714509256 |
| SMSS Mean r6"ap | nan ± nan |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.027 |
| Power law αν | -1.93 ± 0.07 |
| log L5100,AGN | 43.38 ± 0.05 |
| log HβBr/[O III] | 0.48 ± 0.04 |
| log ML5100/M☉ | 7.68 ± 0.08 |
| log MHα/M☉ | 7.26 ± 0.03 |
| log MHβ/M☉ | 7.66 ± 0.08 |
| log M[O III]/M☉ | 7.58 ± 0.08 |
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 | 40.82 ± 0.08 | 1531 ± 73 | 539 ± 25 | 13.17 ± 1.39 |
| [O III] 4364 | 40.24 ± 0.13 | 352 ± 63 | 149 ± 25 | 3.60 ± 0.66 |
| He II Narrow | 39.51 ± 0.44 | 352 ± 63 | 149 ± 25 | 0.68 ± 0.56 |
| He II Broad | 39.70 ± 0.47 | 1181 ± 63 | 501 ± 25 | 1.05 ± 1.03 |
| Hβ Narrow | 40.39 ± 0.12 | 359 ± 63 | 240 ± 64 | 5.10 ± 1.13 |
| Hβ Broad | 41.54 ± 0.03 | 3306 ± 283 | 1701 ± 65 | 73.24 ± 2.65 |
| [O III] 5007 | 41.06 ± 0.03 | 359 ± 63 | 240 ± 64 | 23.89 ± 1.26 |
| He I Narrow | 39.94 ± 0.16 | 352 ± 63 | 149 ± 25 | 1.85 ± 0.41 |
| He I Broad | 41.06 ± 0.07 | 7158 ± 63 | 3040 ± 25 | 24.25 ± 1.89 |
| [O I] 6300 | 39.27 ± 0.46 | 352 ± 63 | 149 ± 25 | 0.40 ± 0.40 |
| Hα Narrow | 40.87 ± 0.04 | 352 ± 63 | 149 ± 25 | 16.10 ± 0.47 |
| Hα Broad | 42.08 ± 0.01 | 2251 ± 77 | 1052 ± 25 | 258.28 ± 1.63 |
| [N II] 6585 | 40.94 ± 0.03 | 352 ± 63 | 149 ± 25 | 18.71 ± 0.60 |
| [S II] 6718 | 40.46 ± 0.05 | 352 ± 63 | 149 ± 25 | 6.27 ± 0.50 |
| [S II] 6732 | 40.38 ± 0.06 | 352 ± 63 | 149 ± 25 | 5.13 ± 0.48 |
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 | 16.87 |
|---|---|
| Hβ Broad SNR | 4.20 |
| Hγ Broad SNR | 2.40 |
| AGN frac | 0.35 |
| Host frac | 0.65 |
| log L5100,Host | 43.65 |
| Fe II/Hβ | 0.45 |
| Fe II/[O III] | 1.39 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 1 |
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.