2MASS J19381959-4326461
Observation
| Spectrum ID | 480557346_sp1 |
|---|---|
| Alt name | g1938196-432646 |
| z | 0.0790 |
| RA, Dec | 294.5817, -43.4462 |
| MJD | 60082.71 |
| SNR/Å B/R | 14.8/17.5 |
| Obs Airmass | 1.04 |
| SMSS ID | 480557346 |
| Closest SMSS | 12.16'', 480557348 |
| SMSS Mean r6"ap | 15.7 ± 0.2 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.065 |
| Power law αν | -0.76 ± 0.02 |
| log L5100,AGN | 44.17 ± 0.01 |
| log HβBr/[O III] | 0.88 ± 0.02 |
| log ML5100/M☉ | 7.88 ± 0.02 |
| log MHα/M☉ | 7.74 ± 0.04 |
| log MHβ/M☉ | 7.95 ± 0.02 |
| log M[O III]/M☉ | 7.71 ± 0.02 |
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 | 40.72 ± 0.13 | 461 ± 64 | 163 ± 25 | 1.47 ± 0.20 |
| Hγ Broad | 42.17 ± 0.02 | 3377 ± 161 | 2207 ± 69 | 41.43 ± 1.02 |
| [O III] 4364 | 39.94 ± 0.39 | 275 ± 63 | 116 ± 25 | 0.24 ± 0.17 |
| He II Narrow | 40.29 ± 0.20 | 275 ± 63 | 116 ± 25 | 0.61 ± 0.17 |
| He II Broad | 42.19 ± 0.03 | 17659 ± 63 | 7499 ± 25 | 47.86 ± 1.53 |
| Hβ Narrow | 41.11 ± 0.05 | 461 ± 64 | 163 ± 25 | 4.15 ± 0.23 |
| Hβ Broad | 42.48 ± 0.01 | 2829 ± 52 | 2479 ± 45 | 97.32 ± 1.31 |
| [O III] 5007 | 41.59 ± 0.02 | 461 ± 64 | 163 ± 25 | 13.04 ± 0.24 |
| He I Narrow | 40.14 ± 0.18 | 275 ± 63 | 116 ± 25 | 0.57 ± 0.14 |
| He I Broad | 41.60 ± 0.03 | 3990 ± 72 | 1694 ± 29 | 16.21 ± 0.54 |
| [O I] 6300 | 40.00 ± 0.21 | 275 ± 63 | 116 ± 25 | 0.45 ± 0.13 |
| Hα Narrow | 41.68 ± 0.01 | 275 ± 63 | 116 ± 25 | 22.31 ± 0.28 |
| Hα Broad | 42.80 ± 0.01 | 2367 ± 64 | 1257 ± 25 | 299.04 ± 1.00 |
| [N II] 6585 | 41.22 ± 0.02 | 275 ± 63 | 116 ± 25 | 7.72 ± 0.23 |
| [S II] 6718 | 40.84 ± 0.05 | 275 ± 63 | 116 ± 25 | 3.32 ± 0.24 |
| [S II] 6732 | 40.82 ± 0.04 | 275 ± 63 | 116 ± 25 | 3.16 ± 0.19 |
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 | 35.21 |
|---|---|
| Hβ Broad SNR | 15.01 |
| Hγ Broad SNR | 7.64 |
| AGN frac | 1.00 |
| Host frac | 0.00 |
| log L5100,Host | 41.28 |
| Fe II/Hβ | 0.71 |
| Fe II/[O III] | 5.50 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 2 |
balmer_width | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.