6dFGS gJ031330.7-300751
Observation
| Spectrum ID | 17246886_sp1 |
|---|---|
| Alt name | g0313307-300751 |
| z | 0.0933 |
| RA, Dec | 48.3778, -30.1310 |
| MJD | 60224.63 |
| SNR/Å B/R | 14.9/21.5 |
| Obs Airmass | 1.04 |
| SMSS ID | 17246886 |
| Closest SMSS | 6.88'', 17246887 |
| SMSS Mean r6"ap | 17.2 ± 0.1 |
| 2MASS Kext | 13.6 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.013 |
| Power law αν | 0.43 ± 0.06 |
| log L5100,AGN | 43.38 ± 0.03 |
| log HβBr/[O III] | 0.90 ± 0.02 |
| log ML5100/M☉ | 8.57 ± 0.12 |
| log MHα/M☉ | 7.78 ± 0.03 |
| log MHβ/M☉ | 8.74 ± 0.12 |
| log M[O III]/M☉ | 8.47 ± 0.13 |
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 | 41.09 ± 0.08 | 7500 ± 450 | 2809 ± 40 | 17.69 ± 1.55 |
| [O III] 4364 | 39.79 ± 0.21 | 242 ± 63 | 102 ± 25 | 0.91 ± 0.25 |
| He II Narrow | 39.35 ± 0.40 | 242 ± 63 | 102 ± 25 | 0.39 ± 0.26 |
| He II Broad | 41.16 ± 0.07 | 10432 ± 64 | 4430 ± 26 | 25.23 ± 1.95 |
| Hβ Narrow | 40.09 ± 0.12 | 294 ± 64 | 133 ± 25 | 2.36 ± 0.34 |
| Hβ Broad | 41.94 ± 0.02 | 9251 ± 1281 | 5729 ± 72 | 167.61 ± 3.25 |
| [O III] 5007 | 41.04 ± 0.02 | 294 ± 64 | 133 ± 25 | 22.64 ± 0.45 |
| He I Narrow | 39.24 ± 0.36 | 242 ± 63 | 102 ± 25 | 0.53 ± 0.39 |
| He I Broad | 40.77 ± 0.08 | 5537 ± 66 | 2351 ± 27 | 17.61 ± 1.62 |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 40.33 ± 0.05 | 242 ± 63 | 102 ± 25 | 8.65 ± 0.52 |
| Hα Broad | 42.16 ± 0.01 | 3869 ± 119 | 2325 ± 25 | 575.01 ± 2.89 |
| [N II] 6585 | — | — | — | — |
| [S II] 6718 | 39.77 ± 0.15 | 242 ± 63 | 102 ± 25 | 2.50 ± 0.67 |
| [S II] 6732 | 39.34 ± 0.30 | 242 ± 63 | 102 ± 25 | 0.94 ± 0.55 |
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 | 15.04 |
|---|---|
| Hβ Broad SNR | 5.06 |
| Hγ Broad SNR | 1.33 |
| AGN frac | 0.47 |
| Host frac | 0.53 |
| log L5100,Host | 43.42 |
| Fe II/Hβ | 0.12 |
| Fe II/[O III] | 0.97 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 1 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.