LEDA 3093189
Observation
| Spectrum ID | 24631101_sp1 |
|---|---|
| Alt name | g0439440-090322 |
| z | 0.0519 |
| RA, Dec | 69.9334, -9.0561 |
| MJD | 60583.73 |
| SNR/Å B/R | 14.7/32.1 |
| Obs Airmass | 1.10 |
| SMSS ID | 24631101 |
| Closest SMSS | 7.48'', 24631102 |
| SMSS Mean r6"ap | 16.0 ± 0.0 |
| 2MASS Kext | 12.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.067 |
| Power law αν | -1.96 ± 0.04 |
| log L5100,AGN | 42.89 ± 0.03 |
| log HβBr/[O III] | <-1.26 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.56 ± 0.06 |
| 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 | 39.74 ± 0.25 | 489 ± 63 | 289 ± 25 | 3.56 ± 1.15 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.59 ± 0.24 | 446 ± 62 | 188 ± 25 | 2.56 ± 0.91 |
| He II Narrow | 39.85 ± 0.14 | 446 ± 62 | 188 ± 25 | 4.63 ± 0.83 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.40 ± 0.04 | 489 ± 63 | 289 ± 25 | 16.51 ± 0.95 |
| Hβ Broad | <40.23 | — | — | — |
| [O III] 5007 | 41.49 ± 0.01 | 489 ± 63 | 289 ± 25 | 202.09 ± 1.07 |
| He I Narrow | 39.56 ± 0.15 | 446 ± 62 | 188 ± 25 | 2.41 ± 0.42 |
| He I Broad | 39.15 ± 0.49 | 1655 ± 62 | 703 ± 25 | 0.93 ± 0.75 |
| [O I] 6300 | 40.34 ± 0.02 | 446 ± 62 | 188 ± 25 | 14.49 ± 0.42 |
| Hα Narrow | 40.96 ± 0.01 | 446 ± 62 | 188 ± 25 | 60.62 ± 0.58 |
| Hα Broad | 41.22 ± 0.02 | 1840 ± 98 | 838 ± 26 | 110.25 ± 1.25 |
| [N II] 6585 | 41.17 ± 0.01 | 446 ± 62 | 188 ± 25 | 98.70 ± 0.55 |
| [S II] 6718 | 40.67 ± 0.01 | 446 ± 62 | 188 ± 25 | 30.83 ± 0.47 |
| [S II] 6732 | 40.64 ± 0.01 | 446 ± 62 | 188 ± 25 | 28.75 ± 0.46 |
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 | 7.87 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.26 |
| Host frac | 0.74 |
| log L5100,Host | 43.35 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
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.