FRL 350
Observation
| Spectrum ID | 484381572_sp1 |
|---|---|
| Alt name | g2055543-701347 |
| z | 0.0576 |
| RA, Dec | 313.9764, -70.2296 |
| MJD | 60445.8 |
| SNR/Å B/R | 9.7/19.8 |
| Obs Airmass | 1.29 |
| SMSS ID | 484381572 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 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) | 0.043 |
| Power law αν | -1.68 ± 0.10 |
| log L5100,AGN | 42.78 ± 0.08 |
| log HβBr/[O III] | 0.19 ± 0.05 |
| log ML5100/M☉ | 7.61 ± 0.09 |
| log MHα/M☉ | 7.62 ± 0.03 |
| log MHβ/M☉ | 7.62 ± 0.09 |
| log M[O III]/M☉ | 7.65 ± 0.09 |
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 | 41.12 ± 0.09 | 9441 ± 2482 | 4396 ± 93 | 104.84 ± 10.27 |
| [O III] 4364 | 39.17 ± 0.43 | 199 ± 63 | 83 ± 25 | 1.19 ± 1.13 |
| He II Narrow | 39.21 ± 0.39 | 199 ± 63 | 83 ± 25 | 1.33 ± 0.97 |
| He II Broad | 40.41 ± 0.17 | 4407 ± 120 | 1871 ± 50 | 21.17 ± 4.77 |
| Hβ Narrow | — | — | — | — |
| Hβ Broad | 41.02 ± 0.04 | 4110 ± 390 | 1632 ± 53 | 87.48 ± 5.51 |
| [O III] 5007 | 40.82 ± 0.02 | 216 ± 63 | 169 ± 34 | 56.18 ± 1.85 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.50 ± 0.08 | 3843 ± 92 | 1632 ± 38 | 27.70 ± 2.91 |
| [O I] 6300 | 39.15 ± 0.27 | 199 ± 63 | 83 ± 25 | 1.29 ± 0.57 |
| Hα Narrow | 40.48 ± 0.02 | 199 ± 63 | 83 ± 25 | 27.81 ± 0.77 |
| Hα Broad | 41.71 ± 0.01 | 4405 ± 114 | 1710 ± 27 | 473.09 ± 3.46 |
| [N II] 6585 | 40.45 ± 0.02 | 199 ± 63 | 83 ± 25 | 25.96 ± 0.70 |
| [S II] 6718 | 40.01 ± 0.04 | 199 ± 63 | 83 ± 25 | 9.40 ± 0.66 |
| [S II] 6732 | 39.97 ± 0.05 | 199 ± 63 | 83 ± 25 | 8.58 ± 0.63 |
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 | 7.21 |
|---|---|
| Hβ Broad SNR | 2.15 |
| Hγ Broad SNR | 1.35 |
| AGN frac | 0.19 |
| Host frac | 0.81 |
| log L5100,Host | 43.41 |
| Fe II/Hβ | 0.54 |
| Fe II/[O III] | 0.85 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 1 |
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.