LEDA 1073159
Observation
| Spectrum ID | 5553330_sp1 |
|---|---|
| Alt name | g2202590-031812 |
| z | 0.0445 |
| RA, Dec | 330.7458, -3.3033 |
| MJD | 60091.79 |
| SNR/Å B/R | 14.0/25.7 |
| Obs Airmass | 1.16 |
| SMSS ID | 5553330 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.0 ± 0.1 |
| 2MASS Kext | 11.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.121 |
| Power law αν | -1.95 ± 0.05 |
| log L5100,AGN | 43.05 ± 0.02 |
| log HβBr/[O III] | 0.15 ± 0.03 |
| log ML5100/M☉ | 7.98 ± 0.11 |
| log MHα/M☉ | 7.56 ± 0.03 |
| log MHβ/M☉ | 7.96 ± 0.11 |
| log M[O III]/M☉ | 8.03 ± 0.11 |
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 | 39.65 ± 0.30 | 495 ± 63 | 326 ± 34 | 2.03 ± 0.98 |
| Hγ Broad | 40.00 ± 0.19 | 1194 ± 63 | 428 ± 25 | 3.71 ± 0.99 |
| [O III] 4364 | 39.49 ± 0.28 | 484 ± 63 | 205 ± 25 | 1.41 ± 0.60 |
| He II Narrow | 39.43 ± 0.33 | 484 ± 63 | 205 ± 25 | 1.22 ± 0.52 |
| He II Broad | 39.87 ± 0.28 | 1965 ± 63 | 834 ± 25 | 3.37 ± 1.06 |
| Hβ Narrow | 40.13 ± 0.08 | 495 ± 63 | 326 ± 34 | 6.11 ± 0.82 |
| Hβ Broad | 41.22 ± 0.03 | 5523 ± 662 | 2901 ± 93 | 75.31 ± 2.33 |
| [O III] 5007 | 41.07 ± 0.01 | 495 ± 63 | 326 ± 34 | 52.95 ± 0.87 |
| He I Narrow | 39.48 ± 0.22 | 484 ± 63 | 205 ± 25 | 1.38 ± 0.34 |
| He I Broad | 39.15 ± 0.51 | 1207 ± 63 | 512 ± 25 | 0.64 ± 0.56 |
| [O I] 6300 | 39.26 ± 0.27 | 484 ± 63 | 205 ± 25 | 0.83 ± 0.35 |
| Hα Narrow | 40.68 ± 0.02 | 484 ± 63 | 205 ± 25 | 21.90 ± 0.70 |
| Hα Broad | 41.58 ± 0.01 | 4521 ± 96 | 1740 ± 25 | 176.08 ± 1.36 |
| [N II] 6585 | 40.63 ± 0.02 | 484 ± 63 | 205 ± 25 | 19.43 ± 0.49 |
| [S II] 6718 | 40.13 ± 0.04 | 484 ± 63 | 205 ± 25 | 6.21 ± 0.38 |
| [S II] 6732 | 40.13 ± 0.04 | 484 ± 63 | 205 ± 25 | 6.23 ± 0.37 |
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 | 8.30 |
|---|---|
| Hβ Broad SNR | 3.34 |
| Hγ Broad SNR | 1.27 |
| AGN frac | 0.42 |
| Host frac | 0.58 |
| log L5100,Host | 43.20 |
| Fe II/Hβ | 1.13 |
| Fe II/[O III] | 1.61 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 1 |
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.