2MASX J21065727-3936341
Observation
| Spectrum ID | 488172908_sp1 |
|---|---|
| Alt name | g2106573-393634 |
| z | 0.0491 |
| RA, Dec | 316.7386, -39.6097 |
| MJD | 60166.57 |
| SNR/Å B/R | 13.1/24.1 |
| Obs Airmass | 1.01 |
| SMSS ID | 488172908 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.7 ± 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) | 0.027 |
| Power law αν | -1.35 ± 0.35 |
| log L5100,AGN | 42.39 ± 0.05 |
| log HβBr/[O III] | <0.28 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.95 ± 0.06 |
| 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 | 38.73 ± 0.44 | 301 ± 63 | 126 ± 25 | 1.05 ± 0.84 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.61 ± 0.16 | 328 ± 66 | 466 ± 61 | 8.18 ± 1.79 |
| Hβ Broad | <40.14 | — | — | — |
| [O III] 5007 | 39.86 ± 0.10 | 328 ± 66 | 466 ± 61 | 14.70 ± 1.81 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.15 ± 0.09 | 8149 ± 63 | 3460 ± 25 | 32.18 ± 3.88 |
| [O I] 6300 | 39.20 ± 0.13 | 301 ± 63 | 126 ± 25 | 3.76 ± 0.69 |
| Hα Narrow | 40.25 ± 0.02 | 301 ± 63 | 126 ± 25 | 43.59 ± 0.92 |
| Hα Broad | 40.73 ± 0.02 | 4077 ± 81 | 1517 ± 32 | 129.64 ± 2.93 |
| [N II] 6585 | 40.05 ± 0.02 | 301 ± 63 | 126 ± 25 | 27.41 ± 0.84 |
| [S II] 6718 | 39.57 ± 0.06 | 301 ± 63 | 126 ± 25 | 9.28 ± 0.75 |
| [S II] 6732 | 39.30 ± 0.12 | 301 ± 63 | 126 ± 25 | 4.94 ± 0.74 |
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 | 2.74 |
|---|---|
| Hβ Broad SNR | 0.85 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.19 |
| Host frac | 0.81 |
| log L5100,Host | 43.02 |
| Fe II/Hβ | — |
| Fe II/[O III] | 1.06 |
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.