LEDA 834201
Observation
| Spectrum ID | 87913039_sp1 |
|---|---|
| Alt name | g0927309-205917 |
| z | 0.0551 |
| RA, Dec | 141.8788, -20.9879 |
| MJD | 61026.7 |
| SNR/Å B/R | 13.0/26.2 |
| Obs Airmass | 1.05 |
| SMSS ID | 87913039 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 0.0 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.047 |
| Power law αν | -1.92 ± 0.08 |
| log L5100,AGN | 42.79 ± 0.06 |
| log HβBr/[O III] | 0.61 ± 0.05 |
| log ML5100/M☉ | 8.76 ± 0.06 |
| log MHα/M☉ | 7.32 ± 0.07 |
| log MHβ/M☉ | 8.88 ± 0.06 |
| log M[O III]/M☉ | 8.72 ± 0.07 |
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 | 39.80 ± 0.17 | 430 ± 64 | 206 ± 28 | 5.19 ± 1.45 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.13 ± 0.45 | 399 ± 63 | 169 ± 25 | 1.13 ± 1.00 |
| He II Broad | 39.67 ± 0.44 | 3487 ± 63 | 1481 ± 25 | 3.90 ± 2.95 |
| Hβ Narrow | 39.98 ± 0.11 | 430 ± 64 | 206 ± 28 | 7.82 ± 1.31 |
| Hβ Broad | 41.27 ± 0.04 | 15360 ± 927 | 5800 ± 210 | 155.07 ± 7.05 |
| [O III] 5007 | 40.66 ± 0.03 | 430 ± 64 | 206 ± 28 | 38.42 ± 1.26 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.80 ± 0.08 | 14069 ± 63 | 5975 ± 25 | 53.10 ± 4.49 |
| [O I] 6300 | 39.94 ± 0.06 | 399 ± 63 | 169 ± 25 | 7.44 ± 0.60 |
| Hα Narrow | 40.64 ± 0.02 | 399 ± 63 | 169 ± 25 | 37.09 ± 0.76 |
| Hα Broad | 41.14 ± 0.02 | 4668 ± 288 | 1850 ± 26 | 116.94 ± 2.40 |
| [N II] 6585 | 40.61 ± 0.02 | 399 ± 63 | 169 ± 25 | 35.03 ± 0.73 |
| [S II] 6718 | 40.50 ± 0.02 | 399 ± 63 | 169 ± 25 | 27.23 ± 0.67 |
| [S II] 6732 | 40.41 ± 0.02 | 399 ± 63 | 169 ± 25 | 21.96 ± 0.65 |
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 | 2.59 |
|---|---|
| Hβ Broad SNR | 1.47 |
| Hγ Broad SNR | 0.90 |
| AGN frac | 0.22 |
| Host frac | 0.78 |
| log L5100,Host | 43.34 |
| Fe II/Hβ | 0.82 |
| Fe II/[O III] | 3.31 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 2 |
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.