MCG-04-05-004
Observation
| Spectrum ID | 1016803820_sp1 |
|---|---|
| Alt name | g0139204-202711 |
| z | 0.0211 |
| RA, Dec | 24.8351, -20.4531 |
| MJD | 60167.78 |
| SNR/Å B/R | 7.0/14.2 |
| Obs Airmass | 1.02 |
| SMSS ID | 1016803820 |
| Closest SMSS | 1.81'', 2023419282 |
| SMSS Mean r6"ap | 15.9 ± 0.0 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.013 |
| Power law αν | -1.92 ± 0.08 |
| log L5100,AGN | 42.36 ± 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 | 39.77 ± 0.07 | 258 ± 63 | 110 ± 34 | 12.49 ± 0.76 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.39 ± 0.10 | 258 ± 64 | 108 ± 26 | 5.49 ± 0.71 |
| He II Narrow | 39.46 ± 0.07 | 258 ± 64 | 108 ± 26 | 6.52 ± 0.60 |
| He II Broad | 39.54 ± 0.34 | 8502 ± 101 | 3611 ± 41 | 7.70 ± 3.06 |
| Hβ Narrow | 40.22 ± 0.02 | 258 ± 63 | 110 ± 34 | 35.43 ± 0.64 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 41.26 ± 0.01 | 258 ± 63 | 110 ± 34 | 402.90 ± 1.11 |
| He I Narrow | 39.13 ± 0.10 | 258 ± 64 | 108 ± 26 | 3.10 ± 0.33 |
| He I Broad | 39.16 ± 0.21 | 1281 ± 89 | 544 ± 37 | 3.16 ± 0.76 |
| [O I] 6300 | 40.02 ± 0.02 | 258 ± 64 | 108 ± 26 | 24.31 ± 0.39 |
| Hα Narrow | 41.03 ± 0.01 | 258 ± 64 | 108 ± 26 | 138.09 ± 0.58 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 40.51 ± 0.01 | 258 ± 64 | 108 ± 26 | 42.32 ± 0.44 |
| [S II] 6718 | 40.19 ± 0.01 | 258 ± 64 | 108 ± 26 | 35.67 ± 0.45 |
| [S II] 6732 | 40.11 ± 0.02 | 258 ± 64 | 108 ± 26 | 30.13 ± 0.51 |
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 | 0.00 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.51 |
| Host frac | 0.49 |
| log L5100,Host | 42.34 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.04 |
Quality flags
spurious_hab/hbb | 1.0/0 |
|---|---|
l5100 | 0 |
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.