6dFGS gJ044210.6-032311
Observation
| Spectrum ID | 25142772_sp1 |
|---|---|
| Alt name | g0442106-032311 |
| z | 0.0796 |
| RA, Dec | 70.5440, -3.3863 |
| MJD | 60950.73 |
| SNR/Å B/R | 4.6/9.3 |
| Obs Airmass | 1.14 |
| SMSS ID | 25142772 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.5 ± 0.1 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.028 |
| Power law αν | -1.94 ± 0.07 |
| log L5100,AGN | 42.85 ± 0.08 |
| log HβBr/[O III] | 0.25 ± 0.03 |
| log ML5100/M☉ | 7.14 ± 0.16 |
| log MHα/M☉ | 6.78 ± 0.04 |
| log MHβ/M☉ | 7.29 ± 0.16 |
| log M[O III]/M☉ | 7.31 ± 0.16 |
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 | 40.75 ± 0.12 | 3095 ± 759 | 1359 ± 68 | 39.49 ± 5.65 |
| [O III] 4364 | 39.52 ± 0.37 | 314 ± 63 | 133 ± 25 | 2.39 ± 1.51 |
| He II Narrow | 39.49 ± 0.37 | 314 ± 63 | 133 ± 25 | 2.23 ± 1.31 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.48 ± 0.06 | 315 ± 63 | 142 ± 26 | 21.97 ± 2.24 |
| Hβ Broad | 41.39 ± 0.02 | 2319 ± 397 | 1492 ± 42 | 177.24 ± 5.53 |
| [O III] 5007 | 41.14 ± 0.01 | 315 ± 63 | 142 ± 26 | 100.22 ± 2.31 |
| He I Narrow | 39.40 ± 0.29 | 314 ± 63 | 133 ± 25 | 1.83 ± 0.70 |
| He I Broad | 40.30 ± 0.13 | 2585 ± 63 | 1097 ± 25 | 14.63 ± 2.36 |
| [O I] 6300 | 39.56 ± 0.17 | 314 ± 63 | 133 ± 25 | 2.71 ± 0.65 |
| Hα Narrow | 41.15 ± 0.01 | 314 ± 63 | 133 ± 25 | 105.51 ± 1.04 |
| Hα Broad | 41.96 ± 0.01 | 1402 ± 63 | 774 ± 25 | 678.03 ± 2.91 |
| [N II] 6585 | 39.26 ± 0.38 | 314 ± 63 | 133 ± 25 | 1.35 ± 0.77 |
| [S II] 6718 | 39.94 ± 0.11 | 314 ± 63 | 133 ± 25 | 6.50 ± 1.12 |
| [S II] 6732 | 39.95 ± 0.09 | 314 ± 63 | 133 ± 25 | 6.62 ± 1.04 |
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 | 28.16 |
|---|---|
| Hβ Broad SNR | 5.61 |
| Hγ Broad SNR | 1.46 |
| AGN frac | 0.43 |
| Host frac | 0.57 |
| log L5100,Host | 42.96 |
| Fe II/Hβ | 0.55 |
| Fe II/[O III] | 0.98 |
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.