2MASX J00233937-1753536
Observation
| Spectrum ID | 11934420_sp1 |
|---|---|
| Alt name | g0023394-175354 |
| z | 0.0534 |
| RA, Dec | 5.9141, -17.8984 |
| MJD | 60255.5 |
| SNR/Å B/R | 13.2/23.9 |
| Obs Airmass | 1.04 |
| SMSS ID | 11934420 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.2 ± 0.1 |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.020 |
| Power law αν | 0.43 ± 0.06 |
| log L5100,AGN | 42.90 ± 0.03 |
| log HβBr/[O III] | <-0.54 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 8.31 ± 0.07 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 39.40 ± 0.37 | 366 ± 63 | 238 ± 25 | 1.11 ± 0.72 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.26 ± 0.36 | 276 ± 63 | 116 ± 25 | 0.80 ± 0.47 |
| He II Narrow | 39.38 ± 0.31 | 276 ± 63 | 116 ± 25 | 1.26 ± 0.49 |
| He II Broad | 39.33 ± 0.47 | 1181 ± 62 | 501 ± 25 | 1.13 ± 1.08 |
| Hβ Narrow | 39.82 ± 0.15 | 366 ± 63 | 238 ± 25 | 3.77 ± 0.78 |
| Hβ Broad | <40.57 | — | — | — |
| [O III] 5007 | 41.11 ± 0.01 | 366 ± 63 | 238 ± 25 | 78.73 ± 0.92 |
| He I Narrow | — | — | — | — |
| He I Broad | 39.28 ± 0.40 | 1179 ± 62 | 500 ± 25 | 1.74 ± 1.05 |
| [O I] 6300 | 39.59 ± 0.10 | 276 ± 63 | 116 ± 25 | 4.21 ± 0.58 |
| Hα Narrow | 40.31 ± 0.03 | 276 ± 63 | 116 ± 25 | 24.47 ± 0.81 |
| Hα Broad | 41.65 ± 0.01 | 10158 ± 752 | 4670 ± 30 | 542.59 ± 5.26 |
| [N II] 6585 | 40.24 ± 0.04 | 276 ± 63 | 116 ± 25 | 20.92 ± 0.86 |
| [S II] 6718 | 39.83 ± 0.07 | 276 ± 63 | 116 ± 25 | 8.38 ± 0.77 |
| [S II] 6732 | 39.91 ± 0.05 | 276 ± 63 | 116 ± 25 | 10.27 ± 0.75 |
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 | 4.17 |
|---|---|
| Hβ Broad SNR | 0.80 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.28 |
| Host frac | 0.72 |
| log L5100,Host | 43.32 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.15 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
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.