LEDA 225607
Observation
| Spectrum ID | 408665904_sp1 |
|---|---|
| Alt name | g1514420-812338 |
| z | 0.0682 |
| RA, Dec | 228.6750, -81.3939 |
| MJD | 59015.55 |
| SNR/Å B/R | 16.9/26.9 |
| Obs Airmass | 1.58 |
| SMSS ID | 408665904 |
| Closest SMSS | 14.08'', 408665905 |
| SMSS Mean r6"ap | 16.0 ± 0.1 |
| 2MASS Kext | 12.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.234 |
| Power law αν | 0.16 ± 0.15 |
| log L5100,AGN | 44.08 ± 0.03 |
| log HβBr/[O III] | 0.34 ± 0.06 |
| log ML5100/M☉ | 8.99 ± 0.13 |
| log MHα/M☉ | 8.89 ± 0.10 |
| log MHβ/M☉ | 9.09 ± 0.13 |
| log M[O III]/M☉ | 9.11 ± 0.13 |
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 | 40.40 ± 0.28 | 407 ± 69 | 308 ± 50 | 0.75 ± 0.29 |
| Hγ Broad | 41.42 ± 0.30 | 2477 ± 1531 | 1211 ± 892 | 7.88 ± 0.58 |
| [O III] 4364 | 40.67 ± 0.13 | 361 ± 69 | 153 ± 28 | 1.39 ± 0.17 |
| He II Narrow | 40.26 ± 0.23 | 361 ± 69 | 153 ± 28 | 0.65 ± 0.17 |
| He II Broad | 40.97 ± 0.17 | 2773 ± 907 | 1178 ± 385 | 3.43 ± 0.49 |
| Hβ Narrow | 40.95 ± 0.09 | 407 ± 69 | 309 ± 50 | 3.38 ± 0.33 |
| Hβ Broad | 42.46 ± 0.06 | 10539 ± 1685 | 4241 ± 635 | 110.44 ± 1.18 |
| [O III] 5007 | 42.12 ± 0.01 | 407 ± 69 | 309 ± 50 | 53.92 ± 0.39 |
| He I Narrow | 39.91 ± 0.29 | 361 ± 69 | 153 ± 28 | 0.47 ± 0.16 |
| He I Broad | 40.81 ± 0.33 | 1399 ± 628 | 594 ± 266 | 3.67 ± 0.36 |
| [O I] 6300 | 40.77 ± 0.06 | 361 ± 69 | 153 ± 28 | 3.93 ± 0.19 |
| Hα Narrow | 41.52 ± 0.06 | 361 ± 69 | 153 ± 28 | 23.16 ± 0.29 |
| Hα Broad | 42.89 ± 0.01 | 8344 ± 844 | 3322 ± 97 | 549.51 ± 1.42 |
| [N II] 6585 | 41.52 ± 0.08 | 361 ± 69 | 153 ± 28 | 23.19 ± 0.30 |
| [S II] 6718 | 40.83 ± 0.05 | 361 ± 69 | 153 ± 28 | 5.16 ± 0.26 |
| [S II] 6732 | 40.88 ± 0.06 | 361 ± 69 | 153 ± 28 | 5.75 ± 0.27 |
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 | 18.10 |
|---|---|
| Hβ Broad SNR | 7.45 |
| Hγ Broad SNR | 3.03 |
| AGN frac | 0.82 |
| Host frac | 0.18 |
| log L5100,Host | 43.42 |
| Fe II/Hβ | 0.27 |
| Fe II/[O III] | 0.59 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.