LEDA 632446
Observation
| Spectrum ID | 488150908_sp1 |
|---|---|
| Alt name | g2105464-364806 |
| z | 0.0767 |
| RA, Dec | 316.4434, -36.8015 |
| MJD | 59440.49 |
| SNR/Å B/R | 8.6/15.6 |
| Obs Airmass | 1.08 |
| SMSS ID | 488150908 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.3 ± 0.2 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.057 |
| Power law αν | -0.05 ± 0.22 |
| log L5100,AGN | 43.16 ± 0.04 |
| log HβBr/[O III] | 0.63 ± 0.04 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.84 ± 0.04 |
| 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 | — | — | — | — |
| Hγ Broad | 40.92 ± 0.07 | 1478 ± 187 | 913 ± 70 | 21.47 ± 1.71 |
| [O III] 4364 | 39.87 ± 0.22 | 450 ± 63 | 190 ± 25 | 1.96 ± 0.62 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.67 ± 0.35 | 472 ± 65 | 364 ± 60 | 1.51 ± 1.10 |
| Hβ Broad | 41.43 ± 0.02 | — | 952 ± 25 | 86.35 ± 1.40 |
| [O III] 5007 | 40.80 ± 0.04 | 472 ± 65 | 365 ± 60 | 21.66 ± 1.28 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.60 ± 0.07 | 2831 ± 63 | 1202 ± 25 | 18.80 ± 1.57 |
| [O I] 6300 | 39.23 ± 0.40 | 450 ± 63 | 190 ± 25 | 0.92 ± 0.61 |
| Hα Narrow | 40.61 ± 0.03 | 450 ± 63 | 190 ± 25 | 23.84 ± 0.86 |
| Hα Broad | 41.93 ± 0.01 | 1541 ± 64 | 1008 ± 25 | 494.27 ± 2.34 |
| [N II] 6585 | 41.06 ± 0.02 | 450 ± 63 | 190 ± 25 | 67.46 ± 0.90 |
| [S II] 6718 | 40.20 ± 0.06 | 450 ± 63 | 190 ± 25 | 9.67 ± 0.99 |
| [S II] 6732 | 40.23 ± 0.08 | 450 ± 63 | 190 ± 25 | 10.42 ± 1.05 |
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 | 22.51 |
|---|---|
| Hβ Broad SNR | 10.39 |
| Hγ Broad SNR | 3.64 |
| AGN frac | 0.48 |
| Host frac | 0.52 |
| log L5100,Host | 43.18 |
| Fe II/Hβ | 0.97 |
| Fe II/[O III] | 4.08 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 0 |
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.