LEDA 767650
Observation
| Spectrum ID | 17699606_sp1 |
|---|---|
| Alt name | g0319486-262713 |
| z | 0.0785 |
| RA, Dec | 49.9524, -26.4535 |
| MJD | 60223.65 |
| SNR/Å B/R | 23.9/34.9 |
| Obs Airmass | 1.02 |
| SMSS ID | 17699606 |
| Closest SMSS | 5.84'', 17699607 |
| SMSS Mean r6"ap | 15.8 ± 0.1 |
| 2MASS Kext | 12.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.015 |
| Power law αν | 0.47 ± 0.02 |
| log L5100,AGN | 43.66 ± 0.01 |
| log HβBr/[O III] | -0.07 ± 0.35 |
| log ML5100/M☉ | 7.86 ± 0.02 |
| log MHα/M☉ | 7.54 ± 0.02 |
| log MHβ/M☉ | 7.68 ± 0.17 |
| log M[O III]/M☉ | 7.86 ± 0.02 |
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 | 40.16 ± 0.21 | 446 ± 63 | 295 ± 26 | 1.08 ± 0.28 |
| Hγ Broad | 41.07 ± 0.06 | 3822 ± 525 | 1273 ± 36 | 8.86 ± 0.50 |
| [O III] 4364 | 39.97 ± 0.23 | 373 ± 63 | 157 ± 25 | 0.70 ± 0.19 |
| He II Narrow | 40.20 ± 0.12 | 373 ± 63 | 157 ± 25 | 1.43 ± 0.23 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.11 ± 0.19 | 446 ± 63 | 295 ± 26 | 1.29 ± 0.33 |
| Hβ Broad | 41.43 +0.67−0.03 | 3546 ± 86 | 1313 ± 37 | 26.87 ± 0.75 |
| [O III] 5007 | 41.50 ± 0.01 | 446 ± 63 | 295 ± 26 | 34.20 ± 0.42 |
| He I Narrow | 39.47 ± 0.30 | 373 ± 63 | 157 ± 25 | 0.47 ± 0.23 |
| He I Broad | 41.27 ± 0.03 | 6048 ± 117 | 2568 ± 49 | 29.10 ± 1.01 |
| [O I] 6300 | 40.09 ± 0.08 | 373 ± 63 | 157 ± 25 | 2.30 ± 0.27 |
| Hα Narrow | 40.90 ± 0.03 | 373 ± 63 | 157 ± 25 | 16.46 ± 0.40 |
| Hα Broad | 42.22 ± 0.01 | 2824 ± 71 | 1327 ± 25 | 348.49 ± 1.41 |
| [N II] 6585 | 41.05 ± 0.02 | 373 ± 63 | 157 ± 25 | 23.67 ± 0.39 |
| [S II] 6718 | 40.59 ± 0.04 | 373 ± 63 | 157 ± 25 | 8.59 ± 0.44 |
| [S II] 6732 | 40.42 ± 0.04 | 373 ± 63 | 157 ± 25 | 5.80 ± 0.43 |
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 | 22.97 |
|---|---|
| Hβ Broad SNR | 4.63 |
| Hγ Broad SNR | 2.58 |
| AGN frac | 0.48 |
| Host frac | 0.52 |
| log L5100,Host | 43.70 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 2 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 0 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.