NGC 6814
Observation
| Spectrum ID | 286051911_sp1 |
|---|---|
| Alt name | g1942406-101925 |
| z | 0.0055 |
| RA, Dec | 295.6691, -10.3236 |
| MJD | 60163.53 |
| SNR/Å B/R | 18.2/28.8 |
| Obs Airmass | 1.07 |
| SMSS ID | 286051911 |
| Closest SMSS | 5.52'', 2399565663 |
| SMSS Mean r6"ap | 14.0 ± 0.1 |
| 2MASS Kext | 7.7 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.159 |
| Power law αν | -0.51 ± 0.16 |
| log L5100,AGN | 42.05 ± 0.02 |
| log HβBr/[O III] | 0.23 ± 0.02 |
| log ML5100/M☉ | 7.19 ± 0.05 |
| log MHα/M☉ | 6.82 ± 0.05 |
| log MHβ/M☉ | 7.23 ± 0.07 |
| log M[O III]/M☉ | 7.22 ± 0.07 |
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 | 38.39 ± 0.25 | 289 ± 63 | 142 ± 25 | 0.84 ± 0.26 |
| Hγ Broad | 39.93 ± 0.10 | 2597 ± 694 | 998 ± 240 | 31.88 ± 0.79 |
| [O III] 4364 | 38.54 ± 0.19 | 249 ± 63 | 105 ± 25 | 1.26 ± 0.23 |
| He II Narrow | 38.15 ± 0.27 | 249 ± 63 | 105 ± 25 | 0.58 ± 0.19 |
| He II Broad | 39.18 ± 0.24 | 2368 ± 1012 | 1005 ± 430 | 6.27 ± 0.63 |
| Hβ Narrow | 38.92 ± 0.07 | 289 ± 63 | 142 ± 25 | 3.40 ± 0.28 |
| Hβ Broad | 40.38 ± 0.02 | 3667 ± 141 | 1444 ± 102 | 106.70 ± 0.94 |
| [O III] 5007 | 40.15 ± 0.01 | 289 ± 63 | 142 ± 25 | 63.32 ± 0.25 |
| He I Narrow | 38.32 ± 0.21 | 249 ± 63 | 105 ± 25 | 1.18 ± 0.30 |
| He I Broad | 39.67 ± 0.10 | 4433 ± 1415 | 1882 ± 601 | 26.76 ± 1.39 |
| [O I] 6300 | 38.70 ± 0.05 | 249 ± 63 | 105 ± 25 | 3.20 ± 0.22 |
| Hα Narrow | 39.42 ± 0.03 | 249 ± 63 | 105 ± 25 | 17.93 ± 0.38 |
| Hα Broad | 40.86 ± 0.01 | 3199 ± 80 | 1195 ± 34 | 481.67 ± 1.14 |
| [N II] 6585 | 39.75 ± 0.02 | 249 ± 63 | 105 ± 25 | 38.08 ± 0.38 |
| [S II] 6718 | 39.18 ± 0.02 | 249 ± 63 | 105 ± 25 | 10.46 ± 0.27 |
| [S II] 6732 | 39.18 ± 0.02 | 249 ± 63 | 105 ± 25 | 10.51 ± 0.27 |
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 | 35.03 |
|---|---|
| Hβ Broad SNR | 13.39 |
| Hγ Broad SNR | 7.36 |
| AGN frac | 0.50 |
| Host frac | 0.50 |
| log L5100,Host | 42.04 |
| Fe II/Hβ | 0.57 |
| Fe II/[O III] | 1.00 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 0 |
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.