LEDA 89182
Observation
| Spectrum ID | 488840395_sp1 |
|---|---|
| Alt name | g2202552-565938 |
| z | 0.0834 |
| RA, Dec | 330.7300, -56.9937 |
| MJD | 59439.54 |
| SNR/Å B/R | 14.0/24.5 |
| Obs Airmass | 1.18 |
| SMSS ID | 488840395 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.1 ± 0.0 |
| 2MASS Kext | 12.5 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.022 |
| Power law αν | -0.09 ± 0.10 |
| log L5100,AGN | 43.48 ± 0.01 |
| log HβBr/[O III] | 0.31 ± 0.03 |
| log ML5100/M☉ | 8.28 ± 0.05 |
| log MHα/M☉ | 7.04 ± 0.03 |
| log MHβ/M☉ | 8.15 ± 0.06 |
| log M[O III]/M☉ | 8.14 ± 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 | 40.42 ± 0.08 | 236 ± 63 | 447 ± 27 | 3.26 ± 0.47 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.50 ± 0.28 | 207 ± 62 | 87 ± 25 | 0.45 ± 0.18 |
| He II Broad | 41.01 ± 0.06 | 7136 ± 89 | 3030 ± 37 | 14.41 ± 1.13 |
| Hβ Narrow | 41.06 ± 0.02 | 236 ± 63 | 447 ± 27 | 17.67 ± 0.53 |
| Hβ Broad | 41.38 ± 0.03 | 6283 ± 373 | 2436 ± 36 | 36.59 ± 1.19 |
| [O III] 5007 | 41.07 ± 0.02 | 236 ± 63 | 447 ± 27 | 18.85 ± 0.61 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.65 ± 0.04 | 2034 ± 92 | 864 ± 38 | 9.90 ± 0.50 |
| [O I] 6300 | 39.86 ± 0.08 | 207 ± 62 | 87 ± 25 | 1.82 ± 0.19 |
| Hα Narrow | 41.42 ± 0.01 | 207 ± 62 | 87 ± 25 | 71.29 ± 0.24 |
| Hα Broad | 41.94 ± 0.01 | 1916 ± 65 | 1508 ± 25 | 238.83 ± 1.32 |
| [N II] 6585 | 41.06 ± 0.01 | 207 ± 62 | 87 ± 25 | 31.55 ± 0.21 |
| [S II] 6718 | 40.65 ± 0.02 | 207 ± 62 | 87 ± 25 | 12.64 ± 0.30 |
| [S II] 6732 | 40.55 ± 0.02 | 207 ± 62 | 87 ± 25 | 10.05 ± 0.24 |
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 | 19.76 |
|---|---|
| Hβ Broad SNR | 3.24 |
| Hγ Broad SNR | 0.77 |
| AGN frac | 0.71 |
| Host frac | 0.29 |
| log L5100,Host | 43.10 |
| Fe II/Hβ | 1.11 |
| Fe II/[O III] | 2.28 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 2 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.