MCG-02-12-045
Observation
| Spectrum ID | 24393139_sp1 |
|---|---|
| Alt name | g0436223-102234 |
| z | 0.0353 |
| RA, Dec | 69.0929, -10.3760 |
| MJD | 60566.77 |
| SNR/Å B/R | 9.3/14.6 |
| Obs Airmass | 1.08 |
| SMSS ID | 24393139 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.8 ± 0.2 |
| 2MASS Kext | 10.4 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.065 |
| Power law αν | 0.13 ± 0.15 |
| log L5100,AGN | 43.55 ± 0.02 |
| log HβBr/[O III] | 0.25 ± 0.02 |
| log ML5100/M☉ | 7.69 ± 0.05 |
| log MHα/M☉ | 7.32 ± 0.05 |
| log MHβ/M☉ | 7.71 ± 0.05 |
| log M[O III]/M☉ | 7.75 ± 0.05 |
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 | 40.35 ± 0.19 | 790 ± 67 | 268 ± 26 | 2.37 ± 0.40 |
| Hγ Broad | 41.27 ± 0.05 | 2438 ± 224 | 928 ± 89 | 19.17 ± 0.91 |
| [O III] 4364 | 40.12 ± 0.19 | 399 ± 72 | 169 ± 29 | 1.45 ± 0.35 |
| He II Narrow | 39.77 ± 0.34 | 399 ± 72 | 169 ± 29 | 0.76 ± 0.33 |
| He II Broad | 40.72 ± 0.10 | 1303 ± 115 | 553 ± 48 | 6.13 ± 0.60 |
| Hβ Narrow | 40.82 ± 0.07 | 790 ± 67 | 268 ± 26 | 8.67 ± 0.38 |
| Hβ Broad | 41.78 ± 0.02 | 3091 ± 176 | 1109 ± 107 | 74.81 ± 1.01 |
| [O III] 5007 | 41.53 ± 0.01 | 790 ± 67 | 268 ± 26 | 46.63 ± 0.47 |
| He I Narrow | 39.33 ± 0.37 | 399 ± 72 | 169 ± 29 | 0.44 ± 0.28 |
| He I Broad | 40.95 ± 0.09 | 2470 ± 493 | 1049 ± 209 | 16.89 ± 0.72 |
| [O I] 6300 | 39.96 ± 0.12 | 399 ± 72 | 169 ± 29 | 2.16 ± 0.33 |
| Hα Narrow | 41.14 ± 0.04 | 399 ± 72 | 169 ± 29 | 34.47 ± 0.66 |
| Hα Broad | 42.27 ± 0.01 | 2106 ± 121 | 973 ± 68 | 462.06 ± 1.38 |
| [N II] 6585 | 41.05 ± 0.08 | 399 ± 72 | 169 ± 29 | 27.53 ± 0.63 |
| [S II] 6718 | 40.43 ± 0.06 | 399 ± 72 | 169 ± 29 | 7.29 ± 0.43 |
| [S II] 6732 | 40.43 ± 0.05 | 399 ± 72 | 169 ± 29 | 7.21 ± 0.41 |
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 | 31.20 |
|---|---|
| Hβ Broad SNR | 10.14 |
| Hγ Broad SNR | 4.53 |
| AGN frac | 0.84 |
| Host frac | 0.16 |
| log L5100,Host | 42.83 |
| Fe II/Hβ | 0.53 |
| Fe II/[O III] | 0.91 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 0 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.