6dFGS gJ034623.7-441625
Observation
| Spectrum ID | 504582544_sp1 |
|---|---|
| Alt name | g0346237-441625 |
| z | 0.0781 |
| RA, Dec | 56.5986, -44.2736 |
| MJD | 60255.61 |
| SNR/Å B/R | 9.6/15.9 |
| Obs Airmass | 1.04 |
| SMSS ID | 504582544 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.3 ± 0.2 |
| 2MASS Kext | 13.2 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.010 |
| Power law αν | 0.44 ± 0.06 |
| log L5100,AGN | 43.17 ± 0.02 |
| log HβBr/[O III] | <-0.59 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.30 ± 0.05 |
| 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 | 39.55 ± 0.28 | 205 ± 62 | 83 ± 25 | 0.84 ± 0.37 |
| He II Narrow | 39.25 ± 0.39 | 205 ± 62 | 83 ± 25 | 0.51 ± 0.36 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.61 ± 0.06 | 209 ± 63 | 379 ± 37 | 12.61 ± 1.17 |
| Hβ Broad | <40.33 | — | — | — |
| [O III] 5007 | 40.92 ± 0.03 | 209 ± 63 | 379 ± 37 | 27.57 ± 1.24 |
| He I Narrow | 39.36 ± 0.22 | 205 ± 62 | 83 ± 25 | 1.13 ± 0.35 |
| He I Broad | 40.56 ± 0.11 | 7054 ± 63 | 2995 ± 25 | 17.82 ± 2.21 |
| [O I] 6300 | 39.54 ± 0.13 | 205 ± 62 | 83 ± 25 | 2.05 ± 0.69 |
| Hα Narrow | 40.97 ± 0.01 | 205 ± 62 | 83 ± 25 | 60.74 ± 0.53 |
| Hα Broad | 41.26 ± 0.01 | 1333 ± 68 | 597 ± 29 | 117.04 ± 1.82 |
| [N II] 6585 | 40.71 ± 0.01 | 205 ± 62 | 83 ± 25 | 33.48 ± 0.48 |
| [S II] 6718 | 40.31 ± 0.05 | 205 ± 62 | 83 ± 25 | 14.05 ± 0.88 |
| [S II] 6732 | 40.20 ± 0.04 | 205 ± 62 | 83 ± 25 | 10.84 ± 0.59 |
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 | 7.01 |
|---|---|
| Hβ Broad SNR | 0.74 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.51 |
| Host frac | 0.49 |
| log L5100,Host | 43.15 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
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.