LEDA 2816626
Observation
| Spectrum ID | 72489785_sp1 |
|---|---|
| Alt name | g0844065-140213 |
| z | 0.0278 |
| RA, Dec | 131.0269, -14.0369 |
| MJD | 59019.36 |
| SNR/Å B/R | 2.8/5.9 |
| Obs Airmass | 1.67 |
| SMSS ID | 72489785 |
| Closest SMSS | 9.51'', 72489792 |
| SMSS Mean r6"ap | 15.3 ± 0.0 |
| 2MASS Kext | 11.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.048 |
| Power law αν | -0.85 ± 0.52 |
| log L5100,AGN | 43.00 ± 0.09 |
| log HβBr/[O III] | -0.02 ± 0.10 |
| log ML5100/M☉ | 6.62 ± 0.05 |
| log MHα/M☉ | 6.35 ± 0.05 |
| log MHβ/M☉ | 6.45 ± 0.06 |
| log M[O III]/M☉ | 6.59 ± 0.05 |
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 | 39.90 ± 0.38 | — | 168 ± 25 | 3.10 ± 1.39 |
| Hγ Broad | 40.53 ± 0.23 | 1182 ± 65 | 439 ± 25 | 11.02 ± 3.38 |
| [O III] 4364 | 39.73 ± 0.37 | 124 ± 63 | 51 ± 25 | 2.06 ± 0.99 |
| He II Narrow | 39.76 ± 0.33 | 124 ± 63 | 51 ± 25 | 2.31 ± 0.90 |
| He II Broad | 40.26 ± 0.28 | 1179 ± 63 | 500 ± 25 | 8.26 ± 2.84 |
| Hβ Narrow | 39.97 ± 0.29 | — | 168 ± 25 | 4.21 ± 1.18 |
| Hβ Broad | 40.83 ± 0.09 | 1183 ± 30 | 447 ± 25 | 29.17 ± 2.86 |
| [O III] 5007 | 40.85 ± 0.06 | — | 168 ± 25 | 33.26 ± 1.33 |
| He I Narrow | 39.44 ± 0.37 | 124 ± 63 | 51 ± 25 | 1.49 ± 0.59 |
| He I Broad | 40.03 ± 0.24 | 1180 ± 62 | 501 ± 25 | 6.34 ± 1.97 |
| [O I] 6300 | 39.56 ± 0.25 | 124 ± 63 | 51 ± 25 | 2.10 ± 0.71 |
| Hα Narrow | 40.33 ± 0.11 | 124 ± 63 | 51 ± 25 | 14.25 ± 0.98 |
| Hα Broad | 41.51 ± 0.01 | 1180 ± 63 | 447 ± 25 | 212.17 ± 2.65 |
| [N II] 6585 | 40.42 ± 0.06 | 124 ± 63 | 51 ± 25 | 16.94 ± 0.94 |
| [S II] 6718 | 39.95 ± 0.14 | 124 ± 63 | 51 ± 25 | 5.68 ± 0.81 |
| [S II] 6732 | 39.92 ± 0.14 | 124 ± 63 | 51 ± 25 | 5.39 ± 0.86 |
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 | 8.21 |
|---|---|
| Hβ Broad SNR | 2.21 |
| Hγ Broad SNR | 1.22 |
| AGN frac | 0.52 |
| Host frac | 0.48 |
| log L5100,Host | 42.96 |
| Fe II/Hβ | 1.14 |
| Fe II/[O III] | 1.04 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 1 |
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.