LEDA 978862
Observation
| Spectrum ID | 193235745_sp1 |
|---|---|
| Alt name | g1653546-102300 |
| z | 0.0601 |
| RA, Dec | 253.4776, -10.3834 |
| MJD | 60160.42 |
| SNR/Å B/R | 5.6/8.3 |
| Obs Airmass | 1.07 |
| SMSS ID | 193235745 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | nan ± nan |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.671 |
| Power law αν | -1.31 ± 0.13 |
| log L5100,AGN | 43.60 ± 0.03 |
| log HβBr/[O III] | -0.34 ± 0.11 |
| log ML5100/M☉ | 7.83 ± 0.14 |
| log MHα/M☉ | 6.77 ± 0.05 |
| log MHβ/M☉ | 7.57 ± 0.15 |
| log M[O III]/M☉ | 7.88 ± 0.14 |
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 | 40.09 ± 0.45 | 395 ± 66 | 390 ± 27 | 1.39 ± 1.21 |
| Hγ Broad | 40.76 ± 0.17 | 1241 ± 81 | 337 ± 25 | 5.49 ± 1.40 |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.95 ± 0.36 | 273 ± 63 | 115 ± 25 | 1.08 ± 0.59 |
| He II Broad | 40.32 ± 0.34 | 1188 ± 63 | 504 ± 25 | 2.49 ± 1.31 |
| Hβ Narrow | 41.35 ± 0.04 | 395 ± 66 | 391 ± 27 | 28.03 ± 1.23 |
| Hβ Broad | 41.22 ± 0.11 | 3526 ± 577 | 1464 ± 60 | 19.91 ± 2.87 |
| [O III] 5007 | 41.56 ± 0.02 | 395 ± 66 | 391 ± 27 | 46.56 ± 1.24 |
| He I Narrow | 39.65 ± 0.42 | 273 ± 63 | 115 ± 25 | 0.63 ± 0.44 |
| He I Broad | 40.44 ± 0.20 | 1316 ± 64 | 559 ± 26 | 3.94 ± 0.99 |
| [O I] 6300 | 40.34 ± 0.09 | 273 ± 63 | 115 ± 25 | 3.25 ± 0.44 |
| Hα Narrow | 41.66 ± 0.01 | 273 ± 63 | 115 ± 25 | 69.76 ± 0.70 |
| Hα Broad | 41.93 ± 0.01 | 1427 ± 74 | 667 ± 28 | 129.60 ± 1.87 |
| [N II] 6585 | 41.37 ± 0.02 | 273 ± 63 | 115 ± 25 | 35.94 ± 0.60 |
| [S II] 6718 | 40.90 ± 0.03 | 273 ± 63 | 115 ± 25 | 12.46 ± 0.50 |
| [S II] 6732 | 40.82 ± 0.04 | 273 ± 63 | 115 ± 25 | 10.27 ± 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 | 9.13 |
|---|---|
| Hβ Broad SNR | 1.13 |
| Hγ Broad SNR | 1.22 |
| AGN frac | 0.67 |
| Host frac | 0.33 |
| log L5100,Host | 43.29 |
| Fe II/Hβ | 2.28 |
| Fe II/[O III] | 0.99 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.