2MASS J19560358-2605447
Observation
| Spectrum ID | 235284979_sp1 |
|---|---|
| Alt name | g1956036-260545 |
| z | 0.0889 |
| RA, Dec | 299.0149, -26.0958 |
| MJD | 60080.76 |
| SNR/Å B/R | 6.0/8.6 |
| Obs Airmass | 1.01 |
| SMSS ID | 235284979 |
| Closest SMSS | 6.09'', 235284980 |
| SMSS Mean r6"ap | 17.3 ± 0.1 |
| 2MASS Kext | 13.8 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.101 |
| Power law αν | -1.53 ± 0.32 |
| log L5100,AGN | 43.26 ± 0.04 |
| log HβBr/[O III] | 0.36 ± 0.04 |
| log ML5100/M☉ | 7.53 ± 0.04 |
| log MHα/M☉ | 6.97 ± 0.04 |
| log MHβ/M☉ | 7.60 ± 0.04 |
| log M[O III]/M☉ | 7.58 ± 0.04 |
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 | 40.04 ± 0.22 | 364 ± 63 | 277 ± 46 | 2.84 ± 1.30 |
| Hγ Broad | 41.13 ± 0.06 | 3129 ± 613 | 1313 ± 103 | 32.95 ± 2.38 |
| [O III] 4364 | 40.09 ± 0.16 | 351 ± 63 | 148 ± 25 | 3.19 ± 0.69 |
| He II Narrow | 39.75 ± 0.27 | 351 ± 63 | 148 ± 25 | 1.50 ± 0.63 |
| He II Broad | 40.85 ± 0.13 | 8361 ± 212 | 3551 ± 89 | 19.53 ± 3.36 |
| Hβ Narrow | 40.51 ± 0.08 | 364 ± 63 | 278 ± 46 | 8.92 ± 1.34 |
| Hβ Broad | 41.62 ± 0.03 | 2956 ± 122 | 1933 ± 143 | 114.43 ± 4.11 |
| [O III] 5007 | 41.26 ± 0.02 | 364 ± 63 | 278 ± 45 | 50.92 ± 1.50 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.32 ± 0.12 | 1354 ± 128 | 575 ± 53 | 5.92 ± 1.13 |
| [O I] 6300 | 39.90 ± 0.17 | 351 ± 63 | 148 ± 25 | 2.47 ± 0.68 |
| Hα Narrow | 41.01 ± 0.03 | 351 ± 63 | 148 ± 25 | 32.61 ± 0.63 |
| Hα Broad | 41.86 ± 0.01 | 1877 ± 91 | 925 ± 25 | 228.70 ± 2.00 |
| [N II] 6585 | 40.81 ± 0.03 | 351 ± 63 | 148 ± 25 | 20.64 ± 0.63 |
| [S II] 6718 | 40.40 ± 0.08 | 351 ± 63 | 148 ± 25 | 7.95 ± 0.81 |
| [S II] 6732 | 40.34 ± 0.07 | 351 ± 63 | 148 ± 25 | 6.95 ± 0.93 |
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 | 13.12 |
|---|---|
| Hβ Broad SNR | 5.62 |
| Hγ Broad SNR | 2.46 |
| AGN frac | 0.68 |
| Host frac | 0.32 |
| log L5100,Host | 42.93 |
| Fe II/Hβ | 0.32 |
| Fe II/[O III] | 0.72 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 1 |
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.