6dFGS gJ080309.5-034938
Observation
| Spectrum ID | 74458818_sp1 |
|---|---|
| Alt name | g0803095-034938 |
| z | 0.0869 |
| RA, Dec | 120.7896, -3.8273 |
| MJD | 61006.71 |
| SNR/Å B/R | 13.2/22.6 |
| Obs Airmass | 1.14 |
| SMSS ID | 74458818 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.3 ± 0.0 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.032 |
| Power law αν | -0.13 ± 0.11 |
| log L5100,AGN | 43.65 ± 0.02 |
| log HβBr/[O III] | <-0.25 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.28 ± 0.04 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 40.31 ± 0.16 | 286 ± 63 | 268 ± 27 | 1.74 ± 0.40 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.55 ± 0.46 | 274 ± 62 | 116 ± 25 | 0.35 ± 0.27 |
| He II Broad | 40.26 ± 0.28 | 1178 ± 62 | 500 ± 25 | 1.79 ± 0.59 |
| Hβ Narrow | 41.12 ± 0.02 | 286 ± 63 | 268 ± 27 | 14.00 ± 0.55 |
| Hβ Broad | <40.85 | — | — | — |
| [O III] 5007 | 41.09 ± 0.03 | 286 ± 63 | 268 ± 27 | 13.72 ± 0.52 |
| He I Narrow | 39.70 ± 0.32 | 274 ± 62 | 116 ± 25 | 0.75 ± 0.34 |
| He I Broad | — | — | — | — |
| [O I] 6300 | 40.31 ± 0.06 | 274 ± 62 | 116 ± 25 | 3.47 ± 0.32 |
| Hα Narrow | 41.75 ± 0.01 | 274 ± 62 | 116 ± 25 | 102.85 ± 0.41 |
| Hα Broad | 41.65 ± 0.02 | 3140 ± 138 | 1771 ± 63 | 81.98 ± 1.91 |
| [N II] 6585 | 41.44 ± 0.01 | 274 ± 62 | 116 ± 25 | 50.63 ± 0.38 |
| [S II] 6718 | 40.94 ± 0.02 | 274 ± 62 | 116 ± 25 | 16.64 ± 0.40 |
| [S II] 6732 | 40.87 ± 0.03 | 274 ± 62 | 116 ± 25 | 14.46 ± 0.43 |
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 | 3.43 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.52 |
| Host frac | 0.48 |
| log L5100,Host | 43.61 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.