FRL 296
Observation
| Spectrum ID | 499699954_sp2 |
|---|---|
| Alt name | g0225090-631326 |
| z | 0.0569 |
| RA, Dec | 36.2876, -63.2240 |
| MJD | 60170.79 |
| SNR/Å B/R | 6.9/13.1 |
| 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 | 0.28 ± 0.17 |
| log L5100,AGN | 42.81 ± 0.04 |
| log HβBr/[O III] | 0.11 ± 0.32 |
| log ML5100/M☉ | 7.12 ± 0.04 |
| log MHα/M☉ | 7.20 ± 0.03 |
| log MHβ/M☉ | 7.08 ± 0.16 |
| log M[O III]/M☉ | 7.15 ± 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 | 39.47 ± 0.29 | 290 ± 63 | 152 ± 36 | 1.61 ± 1.40 |
| Hγ Broad | 40.69 ± 0.06 | — | 1016 ± 38 | 26.72 ± 1.75 |
| [O III] 4364 | 39.20 ± 0.41 | 288 ± 63 | 122 ± 25 | 0.90 ± 0.60 |
| He II Narrow | 39.07 ± 0.40 | 288 ± 63 | 122 ± 25 | 0.78 ± 0.64 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.96 ± 0.09 | 290 ± 63 | 153 ± 36 | 6.55 ± 1.34 |
| Hβ Broad | 40.92 +0.59−0.03 | 2326 ± 63 | 867 ± 31 | 59.50 ± 1.99 |
| [O III] 5007 | 40.81 ± 0.02 | 290 ± 63 | 153 ± 36 | 49.61 ± 1.54 |
| He I Narrow | 39.39 ± 0.15 | 288 ± 63 | 122 ± 25 | 2.72 ± 0.59 |
| He I Broad | 41.05 ± 0.04 | 12286 ± 107 | 5217 ± 45 | 123.51 ± 5.04 |
| [O I] 6300 | 39.55 ± 0.09 | 288 ± 63 | 122 ± 25 | 4.65 ± 0.71 |
| Hα Narrow | 40.51 ± 0.02 | 288 ± 63 | 122 ± 25 | 46.16 ± 1.12 |
| Hα Broad | 41.72 ± 0.01 | 2698 ± 69 | 1237 ± 27 | 744.16 ± 4.07 |
| [N II] 6585 | 40.03 ± 0.05 | 288 ± 63 | 122 ± 25 | 15.51 ± 0.99 |
| [S II] 6718 | 39.86 ± 0.05 | 288 ± 63 | 122 ± 25 | 10.80 ± 0.82 |
| [S II] 6732 | 39.85 ± 0.05 | 288 ± 63 | 122 ± 25 | 10.77 ± 0.81 |
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 | 15.92 |
|---|---|
| Hβ Broad SNR | 4.51 |
| Hγ Broad SNR | 3.38 |
| AGN frac | 0.51 |
| Host frac | 0.49 |
| log L5100,Host | 42.79 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 0 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.