LEDA 1052194
Observation
| Spectrum ID | 7624194_sp1 |
|---|---|
| Alt name | g2251234-045304 |
| z | 0.0930 |
| RA, Dec | 342.8475, -4.8844 |
| MJD | 60113.79 |
| SNR/Å B/R | 11.5/16.5 |
| Obs Airmass | 1.12 |
| SMSS ID | 7624194 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.1 ± 0.1 |
| 2MASS Kext | 12.8 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.028 |
| Power law αν | 0.45 ± 0.06 |
| log L5100,AGN | 43.12 ± 0.04 |
| log HβBr/[O III] | 0.27 ± 0.07 |
| log ML5100/M☉ | 7.97 ± 0.03 |
| log MHα/M☉ | 7.09 ± 0.03 |
| log MHβ/M☉ | 7.92 ± 0.04 |
| log M[O III]/M☉ | 7.92 ± 0.04 |
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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 40.01 ± 0.18 | 348 ± 63 | 146 ± 25 | 2.71 ± 0.69 |
| He II Narrow | 39.49 ± 0.43 | 348 ± 63 | 146 ± 25 | 0.98 ± 0.73 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.49 ± 0.08 | 359 ± 63 | 290 ± 67 | 10.64 ± 1.63 |
| Hβ Broad | 41.20 ± 0.05 | 5289 ± 56 | 1954 ± 28 | 54.17 ± 3.48 |
| [O III] 5007 | 40.93 ± 0.04 | 359 ± 63 | 290 ± 67 | 31.55 ± 1.96 |
| He I Narrow | 39.63 ± 0.29 | 348 ± 63 | 146 ± 25 | 2.35 ± 0.94 |
| He I Broad | 40.36 ± 0.22 | 3814 ± 63 | 1620 ± 25 | 12.44 ± 3.71 |
| [O I] 6300 | 39.95 ± 0.16 | 348 ± 63 | 146 ± 25 | 5.87 ± 1.36 |
| Hα Narrow | 41.10 ± 0.02 | 348 ± 63 | 146 ± 25 | 91.09 ± 1.57 |
| Hα Broad | 41.69 ± 0.02 | 2435 ± 84 | 1253 ± 43 | 353.44 ± 7.03 |
| [N II] 6585 | 40.88 ± 0.02 | 348 ± 63 | 146 ± 25 | 55.38 ± 1.54 |
| [S II] 6718 | 40.47 ± 0.07 | 348 ± 63 | 146 ± 25 | 22.48 ± 2.25 |
| [S II] 6732 | 40.12 ± 0.14 | 348 ± 63 | 146 ± 25 | 10.12 ± 2.45 |
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 | 6.40 |
|---|---|
| Hβ Broad SNR | 1.61 |
| Hγ Broad SNR | 0.66 |
| AGN frac | 0.24 |
| Host frac | 0.76 |
| log L5100,Host | 43.61 |
| Fe II/Hβ | 0.41 |
| Fe II/[O III] | 0.75 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
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.