MCG-04-33-027
Observation
| Spectrum ID | 108152512_sp1 |
|---|---|
| Alt name | g1401258-223420 |
| z | 0.0357 |
| RA, Dec | 210.3575, -22.5720 |
| MJD | 61093.73 |
| SNR/Å B/R | 12.4/25.7 |
| Obs Airmass | 1.01 |
| SMSS ID | 108152512 |
| Closest SMSS | 2.30'', 2175347892 |
| SMSS Mean r6"ap | 15.9 ± 0.1 |
| 2MASS Kext | 11.7 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.059 |
| Power law αν | -1.98 ± 0.02 |
| log L5100,AGN | 42.32 ± 0.06 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| 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 | 39.45 ± 0.22 | 352 ± 63 | 181 ± 38 | 6.76 ± 3.03 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.04 ± 0.34 | 346 ± 62 | 146 ± 25 | 2.69 ± 1.46 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.93 ± 0.06 | 352 ± 63 | 181 ± 38 | 20.15 ± 2.24 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 39.91 ± 0.06 | 352 ± 63 | 181 ± 38 | 19.76 ± 2.20 |
| He I Narrow | 38.96 ± 0.30 | 346 ± 62 | 146 ± 25 | 2.27 ± 0.87 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 39.44 ± 0.10 | 346 ± 62 | 146 ± 25 | 6.78 ± 0.91 |
| Hα Narrow | 40.67 ± 0.01 | 346 ± 62 | 146 ± 25 | 115.86 ± 1.08 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 40.36 ± 0.01 | 346 ± 62 | 146 ± 25 | 56.80 ± 1.09 |
| [S II] 6718 | 40.13 ± 0.02 | 346 ± 62 | 146 ± 25 | 33.80 ± 1.02 |
| [S II] 6732 | 40.07 ± 0.03 | 346 ± 62 | 146 ± 25 | 28.88 ± 0.98 |
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 | 0.97 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.13 |
| Host frac | 0.87 |
| log L5100,Host | 43.13 |
| Fe II/Hβ | — |
| Fe II/[O III] | 1.52 |
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.