NGC 6814
Observation
| Spectrum ID | 286051911_sp2 |
|---|---|
| Alt name | g1942406-101925 |
| z | 0.0055 |
| RA, Dec | 295.6691, -10.3236 |
| MJD | 60557.43 |
| SNR/Å B/R | 16.8/26.3 |
| Obs Airmass | 1.08 |
| 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 | -0.21 ± 0.17 |
| log L5100,AGN | 42.30 ± 0.02 |
| log HβBr/[O III] | 0.16 ± 0.05 |
| log ML5100/M☉ | 7.28 ± 0.18 |
| log MHα/M☉ | 6.92 ± 0.05 |
| log MHβ/M☉ | 7.23 ± 0.19 |
| log M[O III]/M☉ | 7.26 ± 0.18 |
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 | 38.56 ± 0.28 | 277 ± 63 | 146 ± 25 | 0.68 ± 0.26 |
| Hγ Broad | 39.81 ± 0.14 | 2012 ± 479 | 695 ± 173 | 10.54 ± 0.65 |
| [O III] 4364 | 38.93 ± 0.11 | 253 ± 63 | 105 ± 25 | 1.65 ± 0.24 |
| He II Narrow | 38.59 ± 0.19 | 253 ± 63 | 105 ± 25 | 0.85 ± 0.19 |
| He II Broad | 39.08 ± 0.20 | 1403 ± 141 | 595 ± 59 | 2.52 ± 0.46 |
| Hβ Narrow | 38.77 ± 0.20 | 277 ± 63 | 146 ± 25 | 1.40 ± 0.25 |
| Hβ Broad | 40.42 ± 0.05 | 3577 ± 636 | 1346 ± 250 | 61.94 ± 0.83 |
| [O III] 5007 | 40.27 ± 0.01 | 277 ± 63 | 146 ± 25 | 45.80 ± 0.24 |
| He I Narrow | 38.28 ± 0.30 | 253 ± 63 | 105 ± 25 | 0.63 ± 0.27 |
| He I Broad | 39.54 ± 0.10 | 1542 ± 245 | 655 ± 104 | 10.91 ± 0.63 |
| [O I] 6300 | 38.75 ± 0.07 | 253 ± 63 | 105 ± 25 | 2.08 ± 0.21 |
| Hα Narrow | 39.42 ± 0.03 | 253 ± 63 | 105 ± 25 | 10.40 ± 0.32 |
| Hα Broad | 40.93 ± 0.01 | 3393 ± 82 | 1339 ± 45 | 346.14 ± 1.07 |
| [N II] 6585 | 39.85 ± 0.01 | 253 ± 63 | 105 ± 25 | 28.79 ± 0.33 |
| [S II] 6718 | 39.24 ± 0.02 | 253 ± 63 | 105 ± 25 | 7.18 ± 0.24 |
| [S II] 6732 | 39.22 ± 0.03 | 253 ± 63 | 105 ± 25 | 6.88 ± 0.23 |
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 | 21.78 |
|---|---|
| Hβ Broad SNR | 8.90 |
| Hγ Broad SNR | 4.13 |
| AGN frac | 0.56 |
| Host frac | 0.44 |
| log L5100,Host | 42.20 |
| Fe II/Hβ | 0.42 |
| Fe II/[O III] | 0.60 |
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.