ESO 164-1
Observation
| Spectrum ID | 468113775_sp1 |
|---|---|
| Alt name | g0800312-532142 |
| z | 0.0418 |
| RA, Dec | 120.1300, -53.3618 |
| MJD | 61009.7 |
| SNR/Å B/R | 7.6/15.7 |
| Obs Airmass | 1.09 |
| SMSS ID | 468113775 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.9 ± 0.1 |
| 2MASS Kext | 11.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.345 |
| Power law αν | -1.85 ± 0.15 |
| log L5100,AGN | 42.97 ± 0.03 |
| log HβBr/[O III] | <-0.87 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.34 ± 0.02 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 40.06 ± 0.15 | 382 ± 63 | 236 ± 25 | 6.20 ± 1.32 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.54 ± 0.28 | 288 ± 63 | 121 ± 25 | 1.87 ± 0.84 |
| He II Narrow | 40.00 ± 0.09 | 288 ± 63 | 121 ± 25 | 5.46 ± 0.73 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.63 ± 0.03 | 382 ± 63 | 236 ± 25 | 23.56 ± 1.06 |
| Hβ Broad | <40.58 | — | — | — |
| [O III] 5007 | 41.45 ± 0.01 | 382 ± 63 | 236 ± 25 | 154.30 ± 1.15 |
| He I Narrow | 39.74 ± 0.10 | 288 ± 63 | 121 ± 25 | 3.07 ± 0.37 |
| He I Broad | 40.34 ± 0.09 | 3400 ± 69 | 1443 ± 28 | 12.33 ± 1.38 |
| [O I] 6300 | 39.89 ± 0.09 | 288 ± 63 | 121 ± 25 | 4.43 ± 0.55 |
| Hα Narrow | 40.96 ± 0.01 | 288 ± 63 | 121 ± 25 | 52.17 ± 0.57 |
| Hα Broad | 41.74 ± 0.01 | 3149 ± 69 | 1733 ± 49 | 313.64 ± 3.00 |
| [N II] 6585 | 40.97 ± 0.01 | 288 ± 63 | 121 ± 25 | 53.75 ± 0.58 |
| [S II] 6718 | 40.43 ± 0.02 | 288 ± 63 | 121 ± 25 | 15.34 ± 0.41 |
| [S II] 6732 | 40.36 ± 0.02 | 288 ± 63 | 121 ± 25 | 13.21 ± 0.42 |
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 | 9.95 |
|---|---|
| Hβ Broad SNR | 0.22 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.47 |
| Host frac | 0.53 |
| log L5100,Host | 43.02 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 1 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.