LEDA 237342
Observation
| Spectrum ID | 485333702_sp1 |
|---|---|
| Alt name | g2031350-770942 |
| z | 0.0779 |
| RA, Dec | 307.8958, -77.1617 |
| MJD | 60164.56 |
| SNR/Å B/R | 10.0/18.9 |
| Obs Airmass | 1.43 |
| SMSS ID | 485333702 |
| Closest SMSS | 10.27'', 485333701 |
| SMSS Mean r6"ap | 17.0 ± 0.1 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.097 |
| Power law αν | -1.96 ± 0.04 |
| log L5100,AGN | 42.85 ± 0.04 |
| log HβBr/[O III] | <0.22 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.46 ± 0.05 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 39.43 ± 0.36 | 226 ± 63 | 127 ± 26 | 1.93 ± 0.94 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.69 ± 0.16 | 214 ± 62 | 89 ± 25 | 3.51 ± 0.87 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.51 ± 0.28 | 226 ± 63 | 127 ± 26 | 2.31 ± 0.85 |
| Hβ Broad | <40.87 | — | — | — |
| [O III] 5007 | 40.65 ± 0.02 | 226 ± 63 | 127 ± 26 | 32.22 ± 0.96 |
| He I Narrow | — | — | — | — |
| He I Broad | 39.72 ± 0.32 | 2404 ± 62 | 1021 ± 25 | 3.85 ± 1.90 |
| [O I] 6300 | 39.67 ± 0.11 | 214 ± 62 | 89 ± 25 | 3.41 ± 0.47 |
| Hα Narrow | 40.50 ± 0.02 | 214 ± 62 | 89 ± 25 | 23.21 ± 0.54 |
| Hα Broad | 41.10 ± 0.03 | 5674 ± 175 | 2121 ± 86 | 90.76 ± 3.29 |
| [N II] 6585 | 40.42 ± 0.02 | 214 ± 62 | 89 ± 25 | 19.12 ± 0.52 |
| [S II] 6718 | 39.86 ± 0.14 | 214 ± 62 | 89 ± 25 | 5.28 ± 0.88 |
| [S II] 6732 | 39.89 ± 0.08 | 214 ± 62 | 89 ± 25 | 5.74 ± 0.64 |
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 | 1.58 |
|---|---|
| Hβ Broad SNR | 0.15 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.25 |
| Host frac | 0.75 |
| log L5100,Host | 43.32 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 1 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
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.