6dFGS gJ082101.2-115425
Observation
| Spectrum ID | 71757944_sp1 |
|---|---|
| Alt name | g0821012-115425 |
| z | 0.0691 |
| RA, Dec | 125.2552, -11.9068 |
| MJD | 60399.39 |
| SNR/Å B/R | 16.7/26.4 |
| Obs Airmass | 1.07 |
| SMSS ID | 71757944 |
| Closest SMSS | 10.87'', 71757945 |
| SMSS Mean r6"ap | 16.4 ± 0.0 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.058 |
| Power law αν | -1.99 ± 0.01 |
| log L5100,AGN | 42.77 ± 0.08 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| 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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.51 ± 0.32 | 483 ± 62 | 205 ± 25 | 2.78 ± 1.24 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.84 ± 0.22 | 526 ± 67 | 285 ± 38 | 5.85 ± 1.80 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 40.64 ± 0.03 | 526 ± 67 | 285 ± 38 | 37.36 ± 1.87 |
| He I Narrow | — | — | — | — |
| He I Broad | — | — | — | — |
| [O I] 6300 | 39.83 ± 0.12 | 483 ± 62 | 205 ± 25 | 5.85 ± 1.01 |
| Hα Narrow | 40.86 ± 0.02 | 483 ± 62 | 205 ± 25 | 62.84 ± 1.08 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 40.94 ± 0.01 | 483 ± 62 | 205 ± 25 | 76.19 ± 1.07 |
| [S II] 6718 | 40.43 ± 0.04 | 483 ± 62 | 205 ± 25 | 23.44 ± 1.15 |
| [S II] 6732 | 40.41 ± 0.04 | 483 ± 62 | 205 ± 25 | 22.29 ± 1.15 |
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 | 0.27 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.13 |
| Host frac | 0.87 |
| log L5100,Host | 43.58 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.