6dFGS gJ040933.4-372407
Observation
| Spectrum ID | 17533677_sp1 |
|---|---|
| Alt name | g0409334-372407 |
| z | 0.0585 |
| RA, Dec | 62.3890, -37.4019 |
| MJD | 60257.66 |
| SNR/Å B/R | 7.2/12.0 |
| Obs Airmass | 1.02 |
| SMSS ID | 17533677 |
| Closest SMSS | 10.85'', 17533678 |
| SMSS Mean r6"ap | 17.2 ± 0.0 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.005 |
| Power law αν | -0.12 ± 0.21 |
| log L5100,AGN | 43.00 ± 0.03 |
| log HβBr/[O III] | 0.54 ± 0.08 |
| log ML5100/M☉ | 7.06 ± 0.30 |
| log MHα/M☉ | 6.47 ± 0.05 |
| log MHβ/M☉ | 6.95 ± 0.31 |
| log M[O III]/M☉ | 6.81 ± 0.31 |
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 | 39.76 ± 0.16 | 223 ± 63 | 133 ± 25 | 2.17 ± 0.47 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.34 ± 0.31 | 195 ± 63 | 82 ± 25 | 0.82 ± 0.38 |
| He II Narrow | — | — | — | — |
| He II Broad | 39.44 ± 0.43 | 1337 ± 65 | 567 ± 26 | 1.18 ± 1.00 |
| Hβ Narrow | 40.33 ± 0.04 | 223 ± 63 | 133 ± 25 | 9.92 ± 0.50 |
| Hβ Broad | 40.95 ± 0.07 | 1969 ± 661 | 5561 ± 130 | 41.83 ± 3.94 |
| [O III] 5007 | 40.41 ± 0.03 | 223 ± 63 | 133 ± 25 | 12.58 ± 0.48 |
| He I Narrow | 39.25 ± 0.20 | 195 ± 63 | 82 ± 25 | 1.18 ± 0.31 |
| He I Broad | 40.09 ± 0.17 | 5105 ± 65 | 2168 ± 26 | 8.10 ± 1.87 |
| [O I] 6300 | 39.31 ± 0.15 | 195 ± 63 | 82 ± 25 | 1.53 ± 0.32 |
| Hα Narrow | 40.71 ± 0.01 | 195 ± 63 | 82 ± 25 | 41.60 ± 0.55 |
| Hα Broad | 41.01 ± 0.01 | 1933 ± 75 | 673 ± 25 | 83.37 ± 1.33 |
| [N II] 6585 | 40.37 ± 0.02 | 195 ± 63 | 82 ± 25 | 19.30 ± 0.46 |
| [S II] 6718 | 40.06 ± 0.03 | 195 ± 63 | 82 ± 25 | 9.82 ± 0.39 |
| [S II] 6732 | 39.96 ± 0.04 | 195 ± 63 | 82 ± 25 | 7.80 ± 0.40 |
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 | 4.81 |
|---|---|
| Hβ Broad SNR | 1.36 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.63 |
| Host frac | 0.37 |
| log L5100,Host | 42.77 |
| Fe II/Hβ | 0.19 |
| Fe II/[O III] | 0.65 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 2 |
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.