6dFGS gJ051041.3-384511
Observation
| Spectrum ID | 18842909_sp1 |
|---|---|
| Alt name | g0510413-384511 |
| z | 0.0873 |
| RA, Dec | 77.6722, -38.7530 |
| MJD | 60341.45 |
| SNR/Å B/R | 14.7/21.0 |
| Obs Airmass | 1.01 |
| SMSS ID | 18842909 |
| Closest SMSS | 5.81'', 18842908 |
| SMSS Mean r6"ap | 17.0 ± 0.1 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.038 |
| Power law αν | -1.94 ± 0.06 |
| log L5100,AGN | 43.00 ± 0.04 |
| log HβBr/[O III] | <-0.28 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.25 ± 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 | 39.47 ± 0.36 | 323 ± 63 | 316 ± 38 | 1.52 ± 1.50 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.68 ± 0.21 | 305 ± 63 | 129 ± 25 | 2.43 ± 0.77 |
| He II Narrow | 39.71 ± 0.19 | 305 ± 63 | 129 ± 25 | 2.61 ± 0.68 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.28 ± 0.07 | 323 ± 63 | 317 ± 38 | 9.96 ± 1.76 |
| Hβ Broad | <40.73 | — | — | — |
| [O III] 5007 | 41.01 ± 0.02 | 323 ± 63 | 317 ± 38 | 53.31 ± 1.58 |
| He I Narrow | 39.21 ± 0.40 | 305 ± 63 | 129 ± 25 | 0.84 ± 0.46 |
| He I Broad | 39.72 ± 0.28 | 1178 ± 62 | 500 ± 25 | 2.71 ± 1.01 |
| [O I] 6300 | 39.97 ± 0.07 | 305 ± 63 | 129 ± 25 | 4.87 ± 0.50 |
| Hα Narrow | 40.72 ± 0.02 | 305 ± 63 | 129 ± 25 | 27.76 ± 0.53 |
| Hα Broad | 41.19 ± 0.02 | 4146 ± 117 | 1307 ± 25 | 81.34 ± 2.03 |
| [N II] 6585 | 40.54 ± 0.02 | 305 ± 63 | 129 ± 25 | 18.17 ± 0.56 |
| [S II] 6718 | 40.35 ± 0.05 | 305 ± 63 | 129 ± 25 | 11.89 ± 0.75 |
| [S II] 6732 | 40.23 ± 0.07 | 305 ± 63 | 129 ± 25 | 8.86 ± 0.81 |
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 | 2.93 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.26 |
| Host frac | 0.74 |
| log L5100,Host | 43.44 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 1 |
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.