LEDA 934826
Observation
| Spectrum ID | 21255709_sp1 |
|---|---|
| Alt name | g0354328-134008 |
| z | 0.0769 |
| RA, Dec | 58.6368, -13.6689 |
| MJD | 60552.76 |
| SNR/Å B/R | 14.5/22.7 |
| Obs Airmass | 1.10 |
| SMSS ID | 21255709 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.6 ± 0.1 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.041 |
| Power law αν | -0.18 ± 0.17 |
| log L5100,AGN | 43.45 ± 0.03 |
| log HβBr/[O III] | 0.69 ± 0.19 |
| log ML5100/M☉ | 7.35 ± 0.03 |
| log MHα/M☉ | 7.08 ± 0.03 |
| log MHβ/M☉ | 7.28 ± 0.10 |
| log M[O III]/M☉ | 7.09 ± 0.05 |
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 | 39.82 ± 0.35 | 389 ± 69 | 244 ± 34 | 0.90 ± 0.39 |
| Hγ Broad | 41.20 ± 0.04 | 2113 ± 236 | 976 ± 70 | 21.50 ± 1.06 |
| [O III] 4364 | 39.72 ± 0.31 | 360 ± 67 | 152 ± 27 | 0.72 ± 0.33 |
| He II Narrow | 39.61 ± 0.36 | 360 ± 67 | 152 ± 27 | 0.64 ± 0.30 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.12 ± 0.17 | 389 ± 69 | 244 ± 34 | 2.18 ± 0.42 |
| Hβ Broad | 41.47 +0.34−0.02 | 2205 ± 55 | 796 ± 28 | 49.10 ± 0.88 |
| [O III] 5007 | 40.78 ± 0.03 | 389 ± 69 | 244 ± 34 | 10.54 ± 0.45 |
| He I Narrow | 39.40 ± 0.31 | 360 ± 67 | 152 ± 27 | 0.59 ± 0.30 |
| He I Broad | 40.72 ± 0.07 | 3875 ± 187 | 1646 ± 79 | 12.19 ± 1.15 |
| [O I] 6300 | 39.05 ± 0.42 | 360 ± 67 | 152 ± 27 | 0.30 ± 0.29 |
| Hα Narrow | 40.20 ± 0.11 | 360 ± 67 | 152 ± 27 | 4.65 ± 0.43 |
| Hα Broad | 42.04 ± 0.01 | 1890 ± 67 | 803 ± 25 | 314.11 ± 1.21 |
| [N II] 6585 | 40.67 ± 0.04 | 360 ± 67 | 152 ± 27 | 13.60 ± 0.43 |
| [S II] 6718 | 39.87 ± 0.11 | 360 ± 67 | 152 ± 27 | 2.21 ± 0.55 |
| [S II] 6732 | 40.03 ± 0.13 | 360 ± 67 | 152 ± 27 | 3.20 ± 0.60 |
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 | 26.21 |
|---|---|
| Hβ Broad SNR | 8.98 |
| Hγ Broad SNR | 4.87 |
| AGN frac | 0.54 |
| Host frac | 0.46 |
| log L5100,Host | 43.38 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.