FRL 296
Observation
| Spectrum ID | 499699954_sp1 |
|---|---|
| Alt name | g0225090-631326 |
| z | 0.0569 |
| RA, Dec | 36.2876, -63.2240 |
| MJD | 60170.79 |
| SNR/Å B/R | 7.6/10.8 |
| Obs Airmass | 1.18 |
| SMSS ID | 499699954 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.4 ± 0.2 |
| 2MASS Kext | 11.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.020 |
| Power law αν | 0.47 ± 0.03 |
| log L5100,AGN | 42.99 ± 0.01 |
| log HβBr/[O III] | 0.11 ± 0.33 |
| log ML5100/M☉ | 7.20 ± 0.03 |
| log MHα/M☉ | 7.09 ± 0.03 |
| log MHβ/M☉ | 7.10 ± 0.17 |
| log M[O III]/M☉ | 7.18 ± 0.04 |
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 | 39.46 ± 0.31 | 283 ± 63 | 151 ± 36 | 1.00 ± 0.90 |
| Hγ Broad | 40.78 ± 0.05 | — | 1012 ± 32 | 21.41 ± 1.15 |
| [O III] 4364 | 39.26 ± 0.39 | 282 ± 63 | 119 ± 25 | 0.64 ± 0.39 |
| He II Narrow | 39.02 ± 0.42 | 282 ± 63 | 119 ± 25 | 0.45 ± 0.41 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.99 ± 0.08 | 283 ± 63 | 152 ± 36 | 4.51 ± 0.89 |
| Hβ Broad | 40.97 +0.63−0.03 | 2324 ± 39 | 836 ± 25 | 43.37 ± 1.33 |
| [O III] 5007 | 40.86 ± 0.01 | 283 ± 63 | 152 ± 36 | 36.31 ± 1.04 |
| He I Narrow | 39.49 ± 0.15 | 282 ± 63 | 119 ± 25 | 2.29 ± 0.48 |
| He I Broad | 41.06 ± 0.04 | 13066 ± 72 | 5549 ± 29 | 85.19 ± 3.82 |
| [O I] 6300 | 39.54 ± 0.13 | 282 ± 63 | 119 ± 25 | 3.03 ± 0.54 |
| Hα Narrow | 40.43 ± 0.03 | 282 ± 63 | 119 ± 25 | 26.04 ± 0.84 |
| Hα Broad | 41.70 ± 0.01 | 2412 ± 88 | 1192 ± 25 | 490.86 ± 2.73 |
| [N II] 6585 | 40.16 ± 0.04 | 282 ± 63 | 119 ± 25 | 14.09 ± 0.75 |
| [S II] 6718 | 39.83 ± 0.07 | 282 ± 63 | 119 ± 25 | 6.91 ± 0.67 |
| [S II] 6732 | 39.83 ± 0.07 | 282 ± 63 | 119 ± 25 | 7.06 ± 0.68 |
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 | 15.54 |
|---|---|
| Hβ Broad SNR | 4.73 |
| Hγ Broad SNR | 3.77 |
| AGN frac | 0.67 |
| Host frac | 0.33 |
| log L5100,Host | 42.68 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 2 |
balmer | 0 |
balmer_snr | 0 |
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.