LEDA 68751
Observation
| Spectrum ID | 7425268_sp3 |
|---|---|
| Alt name | g2223495-020613 |
| z | 0.0560 |
| RA, Dec | 335.9564, -2.1036 |
| MJD | 60471.8 |
| SNR/Å B/R | 2.8/6.2 |
| Obs Airmass | 1.15 |
| SMSS ID | 7425268 |
| Closest SMSS | 14.07'', 7425267 |
| SMSS Mean r6"ap | 15.7 ± 0.0 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.071 |
| Power law αν | -0.35 ± 0.61 |
| log L5100,AGN | 43.35 ± 0.08 |
| log HβBr/[O III] | -0.62 ± 0.05 |
| log ML5100/M☉ | 7.76 ± 0.11 |
| log MHα/M☉ | 8.17 ± 0.12 |
| log MHβ/M☉ | 7.84 ± 0.11 |
| log M[O III]/M☉ | 8.31 ± 0.11 |
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 | 40.80 ± 0.16 | 334 ± 64 | 241 ± 54 | 10.07 ± 2.37 |
| Hγ Broad | 41.30 ± 0.11 | 1371 ± 160 | 485 ± 56 | 33.13 ± 3.06 |
| [O III] 4364 | 40.85 ± 0.09 | 298 ± 78 | 126 ± 32 | 13.76 ± 1.43 |
| He II Narrow | 40.45 ± 0.26 | 298 ± 78 | 126 ± 32 | 6.17 ± 1.37 |
| He II Broad | 40.83 ± 0.20 | 1292 ± 176 | 548 ± 74 | 12.53 ± 2.86 |
| Hβ Narrow | 41.20 ± 0.07 | 334 ± 64 | 241 ± 54 | 30.72 ± 2.39 |
| Hβ Broad | 41.73 ± 0.04 | 3689 ± 459 | 1232 ± 93 | 111.71 ± 3.83 |
| [O III] 5007 | 42.35 ± 0.02 | 334 ± 64 | 241 ± 54 | 503.86 ± 2.88 |
| He I Narrow | 40.00 ± 0.31 | 298 ± 78 | 126 ± 32 | 3.19 ± 1.13 |
| He I Broad | 40.55 ± 0.20 | 1228 ± 83 | 521 ± 34 | 9.86 ± 2.24 |
| [O I] 6300 | 40.79 ± 0.07 | 298 ± 78 | 126 ± 32 | 21.51 ± 1.20 |
| Hα Narrow | 41.63 ± 0.08 | 298 ± 78 | 126 ± 32 | 151.17 ± 2.08 |
| Hα Broad | 42.77 ± 0.01 | 3935 ± 496 | 1832 ± 106 | 2077.73 ± 6.10 |
| [N II] 6585 | 40.47 ± 0.17 | 298 ± 78 | 126 ± 32 | 11.14 ± 1.72 |
| [S II] 6718 | 40.91 ± 0.06 | 298 ± 78 | 126 ± 32 | 31.93 ± 1.44 |
| [S II] 6732 | 40.93 ± 0.06 | 298 ± 78 | 126 ± 32 | 32.85 ± 1.43 |
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 | 19.11 |
|---|---|
| Hβ Broad SNR | 3.16 |
| Hγ Broad SNR | 2.90 |
| AGN frac | 0.60 |
| Host frac | 0.40 |
| log L5100,Host | 43.17 |
| Fe II/Hβ | 1.09 |
| Fe II/[O III] | 0.25 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 1 |
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.