LEDA 368628
Observation
| Spectrum ID | 471202580_sp1 |
|---|---|
| Alt name | g0711491-594752 |
| z | 0.0316 |
| RA, Dec | 107.9545, -59.7978 |
| MJD | 60060.39 |
| SNR/Å B/R | 6.2/10.2 |
| Obs Airmass | 1.25 |
| SMSS ID | 471202580 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.5 ± 0.0 |
| 2MASS Kext | 12.8 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.135 |
| Power law αν | 0.10 ± 0.28 |
| log L5100,AGN | 42.26 ± 0.06 |
| log HβBr/[O III] | -0.67 ± 0.10 |
| log ML5100/M☉ | 6.40 ± 0.09 |
| log MHα/M☉ | 6.40 ± 0.06 |
| log MHβ/M☉ | 6.12 ± 0.12 |
| log M[O III]/M☉ | 6.53 ± 0.10 |
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 | 39.63 ± 0.18 | 1267 ± 122 | 503 ± 73 | 8.04 ± 2.05 |
| [O III] 4364 | 39.28 ± 0.16 | 264 ± 63 | 111 ± 25 | 3.89 ± 0.88 |
| He II Narrow | — | — | — | — |
| He II Broad | 39.77 ± 0.14 | 2404 ± 64 | 1021 ± 26 | 13.94 ± 2.52 |
| Hβ Narrow | 39.76 ± 0.09 | 394 ± 64 | 303 ± 26 | 14.53 ± 1.50 |
| Hβ Broad | 39.88 ± 0.10 | 1320 ± 123 | 493 ± 43 | 18.23 ± 3.62 |
| [O III] 5007 | 40.55 ± 0.01 | 394 ± 64 | 303 ± 26 | 95.56 ± 1.61 |
| He I Narrow | 38.83 ± 0.24 | 264 ± 63 | 111 ± 25 | 2.58 ± 0.98 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 39.40 ± 0.07 | 264 ± 63 | 111 ± 25 | 11.01 ± 1.05 |
| Hα Narrow | 39.89 ± 0.03 | 264 ± 63 | 111 ± 25 | 36.88 ± 1.16 |
| Hα Broad | 40.76 ± 0.02 | 2121 ± 85 | 963 ± 41 | 274.45 ± 4.67 |
| [N II] 6585 | 39.81 ± 0.03 | 264 ± 63 | 111 ± 25 | 31.10 ± 1.16 |
| [S II] 6718 | 39.68 ± 0.04 | 264 ± 63 | 111 ± 25 | 23.85 ± 1.30 |
| [S II] 6732 | 39.63 ± 0.05 | 264 ± 63 | 111 ± 25 | 21.33 ± 1.30 |
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 | 5.82 |
|---|---|
| Hβ Broad SNR | 1.85 |
| Hγ Broad SNR | 1.13 |
| AGN frac | 0.37 |
| Host frac | 0.63 |
| log L5100,Host | 42.48 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
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.