LEDA 926539
Observation
| Spectrum ID | 166847177_sp1 |
|---|---|
| Alt name | g1530395-141712 |
| z | 0.0520 |
| RA, Dec | 232.6646, -14.2865 |
| MJD | 60077.58 |
| SNR/Å B/R | 9.3/14.5 |
| Obs Airmass | 1.05 |
| SMSS ID | 166847177 |
| Closest SMSS | 13.07'', 1198609544 |
| SMSS Mean r6"ap | 16.2 ± 0.0 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.126 |
| Power law αν | -1.77 ± 0.14 |
| log L5100,AGN | 43.00 ± 0.03 |
| log HβBr/[O III] | 0.22 ± 0.03 |
| log ML5100/M☉ | 7.50 ± 0.04 |
| log MHα/M☉ | 7.12 ± 0.03 |
| log MHβ/M☉ | 7.46 ± 0.05 |
| log M[O III]/M☉ | 7.49 ± 0.04 |
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 | 40.63 ± 0.08 | 3560 ± 104 | 1266 ± 30 | 20.48 ± 2.04 |
| [O III] 4364 | 39.84 ± 0.16 | 406 ± 63 | 171 ± 25 | 3.38 ± 0.68 |
| He II Narrow | 39.44 ± 0.32 | 406 ± 63 | 171 ± 25 | 1.39 ± 0.59 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.24 ± 0.06 | 410 ± 63 | 186 ± 28 | 8.72 ± 0.84 |
| Hβ Broad | 41.12 ± 0.03 | 3259 ± 96 | 1237 ± 86 | 66.21 ± 2.18 |
| [O III] 5007 | 40.90 ± 0.01 | 410 ± 63 | 186 ± 28 | 40.36 ± 0.89 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.76 ± 0.06 | 6534 ± 72 | 2775 ± 29 | 30.47 ± 2.25 |
| [O I] 6300 | 39.73 ± 0.12 | 406 ± 63 | 171 ± 25 | 2.87 ± 0.48 |
| Hα Narrow | 40.91 ± 0.02 | 406 ± 63 | 171 ± 25 | 43.75 ± 0.67 |
| Hα Broad | 41.77 ± 0.01 | 2386 ± 67 | 1209 ± 30 | 320.15 ± 2.32 |
| [N II] 6585 | 40.65 ± 0.03 | 406 ± 63 | 171 ± 25 | 24.06 ± 0.65 |
| [S II] 6718 | 40.17 ± 0.05 | 406 ± 63 | 171 ± 25 | 8.00 ± 0.54 |
| [S II] 6732 | 39.91 ± 0.08 | 406 ± 63 | 171 ± 25 | 4.44 ± 0.52 |
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 | 16.94 |
|---|---|
| Hβ Broad SNR | 4.41 |
| Hγ Broad SNR | 1.53 |
| AGN frac | 0.47 |
| Host frac | 0.53 |
| log L5100,Host | 43.06 |
| Fe II/Hβ | 0.89 |
| Fe II/[O III] | 1.47 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
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.