ESO 140-43
Observation
| Spectrum ID | 478399456_sp1 |
|---|---|
| Alt name | g1844540-622153 |
| z | 0.0139 |
| RA, Dec | 281.2249, -62.3647 |
| MJD | 59492.38 |
| SNR/Å B/R | 8.8/19.6 |
| Obs Airmass | 1.20 |
| SMSS ID | 478399456 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.4 ± 0.1 |
| 2MASS Kext | 9.7 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.093 |
| Power law αν | -1.77 ± 0.18 |
| log L5100,AGN | 43.10 ± 0.02 |
| log HβBr/[O III] | -0.01 ± 0.04 |
| log ML5100/M☉ | 7.55 ± 0.06 |
| log MHα/M☉ | 7.11 ± 0.09 |
| log MHβ/M☉ | 7.53 ± 0.06 |
| log M[O III]/M☉ | 7.68 ± 0.06 |
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 | 39.75 ± 0.20 | 284 ± 63 | 210 ± 43 | 2.16 ± 0.68 |
| Hγ Broad | 40.52 ± 0.08 | 1655 ± 330 | 538 ± 106 | 12.43 ± 1.04 |
| [O III] 4364 | 39.69 ± 0.16 | 260 ± 63 | 109 ± 25 | 1.93 ± 0.40 |
| He II Narrow | 39.53 ± 0.20 | 260 ± 63 | 109 ± 25 | 1.36 ± 0.30 |
| He II Broad | 40.45 ± 0.17 | 2277 ± 781 | 967 ± 331 | 11.16 ± 0.91 |
| Hβ Narrow | 40.29 ± 0.04 | 284 ± 63 | 210 ± 43 | 7.63 ± 0.53 |
| Hβ Broad | 41.25 ± 0.04 | 3305 ± 199 | 1424 ± 231 | 75.96 ± 1.35 |
| [O III] 5007 | 41.26 ± 0.01 | 284 ± 63 | 210 ± 43 | 73.62 ± 0.55 |
| He I Narrow | 39.04 ± 0.31 | 260 ± 63 | 109 ± 25 | 0.46 ± 0.16 |
| He I Broad | 40.30 ± 0.18 | 1713 ± 795 | 727 ± 337 | 8.20 ± 0.44 |
| [O I] 6300 | 39.62 ± 0.07 | 260 ± 63 | 109 ± 25 | 1.82 ± 0.17 |
| Hα Narrow | 40.79 ± 0.02 | 260 ± 63 | 109 ± 25 | 26.30 ± 0.28 |
| Hα Broad | 41.88 ± 0.01 | 2169 ± 243 | 1038 ± 67 | 324.65 ± 0.76 |
| [N II] 6585 | 40.67 ± 0.04 | 260 ± 63 | 109 ± 25 | 20.06 ± 0.24 |
| [S II] 6718 | 40.21 ± 0.02 | 260 ± 63 | 109 ± 25 | 7.03 ± 0.18 |
| [S II] 6732 | 40.19 ± 0.03 | 260 ± 63 | 109 ± 25 | 6.71 ± 0.19 |
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 | 33.90 |
|---|---|
| Hβ Broad SNR | 7.60 |
| Hγ Broad SNR | 3.29 |
| AGN frac | 0.81 |
| Host frac | 0.18 |
| log L5100,Host | 42.45 |
| Fe II/Hβ | 0.50 |
| Fe II/[O III] | 0.52 |
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.