ESO 404-29
Observation
| Spectrum ID | 1230398_sp1 |
|---|---|
| Alt name | g2207450-323502 |
| z | 0.0591 |
| RA, Dec | 331.9376, -32.5837 |
| MJD | 60089.79 |
| SNR/Å B/R | 16.6/28.0 |
| Obs Airmass | 1.03 |
| SMSS ID | 1230398 |
| Closest SMSS | 5.66'', 2001995644 |
| SMSS Mean r6"ap | 15.4 ± 0.1 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.029 |
| Power law αν | 0.20 ± 0.16 |
| log L5100,AGN | 43.47 ± 0.03 |
| log HβBr/[O III] | 0.45 ± 0.02 |
| log ML5100/M☉ | 8.31 ± 0.03 |
| log MHα/M☉ | 7.96 ± 0.02 |
| log MHβ/M☉ | 8.45 ± 0.03 |
| log M[O III]/M☉ | 8.39 ± 0.03 |
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 | — | — | — | — |
| Hγ Broad | 41.27 ± 0.05 | 5735 ± 429 | 2246 ± 56 | 22.31 ± 1.17 |
| [O III] 4364 | 40.14 ± 0.09 | 249 ± 63 | 105 ± 25 | 1.69 ± 0.22 |
| He II Narrow | 39.87 ± 0.15 | 249 ± 63 | 105 ± 25 | 1.07 ± 0.23 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.39 ± 0.05 | 260 ± 63 | 142 ± 27 | 3.77 ± 0.41 |
| Hβ Broad | 41.95 ± 0.01 | 6576 ± 184 | 3328 ± 104 | 139.85 ± 2.24 |
| [O III] 5007 | 41.50 ± 0.01 | 260 ± 63 | 142 ± 27 | 52.20 ± 0.44 |
| He I Narrow | 39.49 ± 0.22 | 249 ± 63 | 105 ± 25 | 0.72 ± 0.25 |
| He I Broad | 41.31 ± 0.03 | 7810 ± 156 | 3317 ± 66 | 47.38 ± 2.67 |
| [O I] 6300 | 40.01 ± 0.08 | 249 ± 63 | 105 ± 25 | 2.80 ± 0.33 |
| Hα Narrow | 40.90 ± 0.02 | 249 ± 63 | 105 ± 25 | 23.99 ± 0.46 |
| Hα Broad | 42.24 ± 0.01 | 4498 ± 72 | 1968 ± 38 | 525.22 ± 2.41 |
| [N II] 6585 | 40.88 ± 0.02 | 249 ± 63 | 105 ± 25 | 22.66 ± 0.43 |
| [S II] 6718 | 40.34 ± 0.03 | 249 ± 63 | 105 ± 25 | 6.95 ± 0.42 |
| [S II] 6732 | 40.30 ± 0.04 | 249 ± 63 | 105 ± 25 | 6.31 ± 0.33 |
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 | 17.25 |
|---|---|
| Hβ Broad SNR | 7.53 |
| Hγ Broad SNR | 2.42 |
| AGN frac | 0.49 |
| Host frac | 0.51 |
| log L5100,Host | 43.49 |
| Fe II/Hβ | 0.65 |
| Fe II/[O III] | 1.84 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 1 |
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.