NVSS J192006-273441
Observation
| Spectrum ID | 231377863_sp1 |
|---|---|
| Alt name | g1920063-273434 |
| z | 0.0634 |
| RA, Dec | 290.0264, -27.5762 |
| MJD | 60914.47 |
| SNR/Å B/R | 11.2/17.0 |
| Obs Airmass | 1.00 |
| SMSS ID | 231377863 |
| Closest SMSS | 9.62'', 231377870 |
| SMSS Mean r6"ap | 16.1 ± 0.1 |
| 2MASS Kext | 12.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.115 |
| Power law αν | 0.18 ± 0.09 |
| log L5100,AGN | 43.57 ± 0.01 |
| log HβBr/[O III] | 0.34 ± 0.01 |
| log ML5100/M☉ | 7.45 ± 0.02 |
| log MHα/M☉ | 7.35 ± 0.03 |
| log MHβ/M☉ | 7.55 ± 0.02 |
| log M[O III]/M☉ | 7.55 ± 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 | 40.34 ± 0.13 | 297 ± 63 | 257 ± 27 | 2.11 ± 0.42 |
| Hγ Broad | 41.40 ± 0.03 | 2689 ± 251 | 1074 ± 54 | 24.28 ± 0.86 |
| [O III] 4364 | 39.58 ± 0.35 | 262 ± 63 | 109 ± 25 | 0.37 ± 0.23 |
| He II Narrow | 40.14 ± 0.10 | 262 ± 63 | 109 ± 25 | 1.56 ± 0.24 |
| He II Broad | 41.20 ± 0.04 | 5269 ± 129 | 2238 ± 54 | 18.18 ± 1.12 |
| Hβ Narrow | 40.61 ± 0.07 | 297 ± 63 | 257 ± 27 | 5.01 ± 0.46 |
| Hβ Broad | 41.98 ± 0.01 | 2308 ± 57 | 1479 ± 51 | 116.88 ± 1.46 |
| [O III] 5007 | 41.64 ± 0.01 | 297 ± 63 | 257 ± 27 | 57.06 ± 0.50 |
| He I Narrow | 39.21 ± 0.38 | 262 ± 63 | 109 ± 25 | 0.30 ± 0.21 |
| He I Broad | 40.89 ± 0.04 | 1983 ± 112 | 842 ± 47 | 14.18 ± 0.70 |
| [O I] 6300 | 39.99 ± 0.08 | 262 ± 63 | 109 ± 25 | 2.10 ± 0.25 |
| Hα Narrow | 41.05 ± 0.02 | 262 ± 63 | 109 ± 25 | 26.68 ± 0.48 |
| Hα Broad | 42.39 ± 0.01 | 2017 ± 64 | 917 ± 25 | 579.39 ± 1.46 |
| [N II] 6585 | 40.78 ± 0.02 | 262 ± 63 | 109 ± 25 | 14.49 ± 0.40 |
| [S II] 6718 | 40.41 ± 0.03 | 262 ± 63 | 109 ± 25 | 6.47 ± 0.31 |
| [S II] 6732 | 40.28 ± 0.04 | 262 ± 63 | 109 ± 25 | 4.77 ± 0.30 |
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 | 44.69 |
|---|---|
| Hβ Broad SNR | 17.33 |
| Hγ Broad SNR | 5.85 |
| AGN frac | 0.81 |
| Host frac | 0.19 |
| log L5100,Host | 42.94 |
| Fe II/Hβ | 0.57 |
| Fe II/[O III] | 1.24 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.