LEDA 628465
Observation
| Spectrum ID | 95390047_sp1 |
|---|---|
| Alt name | g1243078-370552 |
| z | 0.0732 |
| RA, Dec | 190.7827, -37.0976 |
| MJD | 60351.72 |
| SNR/Å B/R | 8.1/12.9 |
| Obs Airmass | 1.01 |
| SMSS ID | 95390047 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.2 ± 0.1 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.060 |
| Power law αν | -1.62 ± 0.26 |
| log L5100,AGN | 43.19 ± 0.02 |
| log HβBr/[O III] | -1.41 ± 0.55 |
| log ML5100/M☉ | 6.70 ± 0.03 |
| log MHα/M☉ | 6.82 ± 0.04 |
| log MHβ/M☉ | 6.27 ± 0.27 |
| log M[O III]/M☉ | 7.07 ± 0.02 |
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 | 40.70 ± 0.04 | 363 ± 63 | 347 ± 25 | 15.36 ± 0.86 |
| Hγ Broad | 40.23 ± 0.17 | 1325 ± 214 | 564 ± 68 | 4.79 ± 1.00 |
| [O III] 4364 | 39.44 ± 0.36 | 298 ± 62 | 126 ± 25 | 0.85 ± 0.44 |
| He II Narrow | 39.76 ± 0.16 | 298 ± 62 | 126 ± 25 | 1.83 ± 0.41 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 41.21 ± 0.01 | 363 ± 63 | 347 ± 25 | 51.63 ± 0.85 |
| Hβ Broad | 40.43 +1.02−0.07 | 1180 ± 25 | 332 ± 25 | 8.64 ± 0.89 |
| [O III] 5007 | 41.84 ± 0.01 | 363 ± 63 | 347 ± 25 | 225.06 ± 0.99 |
| He I Narrow | 39.64 ± 0.19 | 298 ± 62 | 126 ± 25 | 1.52 ± 0.47 |
| He I Broad | 40.20 ± 0.11 | 1181 ± 63 | 501 ± 25 | 5.46 ± 0.69 |
| [O I] 6300 | 40.55 ± 0.02 | 298 ± 62 | 126 ± 25 | 12.66 ± 0.29 |
| Hα Narrow | 41.44 ± 0.01 | 298 ± 62 | 126 ± 25 | 98.79 ± 0.46 |
| Hα Broad | 41.83 ± 0.01 | 1618 ± 66 | 700 ± 25 | 245.63 ± 1.01 |
| [N II] 6585 | 40.96 ± 0.01 | 298 ± 62 | 126 ± 25 | 32.69 ± 0.38 |
| [S II] 6718 | 40.84 ± 0.01 | 298 ± 62 | 126 ± 25 | 25.13 ± 0.44 |
| [S II] 6732 | 40.76 ± 0.01 | 298 ± 62 | 126 ± 25 | 20.79 ± 0.38 |
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 | 26.56 |
|---|---|
| Hβ Broad SNR | 2.14 |
| Hγ Broad SNR | 1.21 |
| AGN frac | 0.75 |
| Host frac | 0.25 |
| log L5100,Host | 42.71 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 0 |
balmer | 1 |
balmer_snr | 1 |
hb_width | 1 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.