ESO138-G01
Observation
| Spectrum ID | 369182295_sp1 |
|---|---|
| Alt name | ESO138-G01 |
| z | 0.0091 |
| RA, Dec | 252.8338, -59.2300 |
| MJD | 60911.41 |
| SNR/Å B/R | 7.8/12.7 |
| Obs Airmass | 1.16 |
| SMSS ID | 369182295 |
| Closest SMSS | 5.31'', 369182294 |
| SMSS Mean r6"ap | 14.7 ± 0.0 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | S7 |
| MW E(B−V) | 0.169 |
| Power law αν | -1.54 ± 0.28 |
| log L5100,AGN | 42.30 ± 0.05 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| 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 | 39.92 ± 0.03 | 293 ± 63 | 170 ± 26 | 19.76 ± 1.09 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.78 ± 0.04 | 276 ± 63 | 117 ± 25 | 14.49 ± 0.77 |
| He II Narrow | 39.63 ± 0.05 | 276 ± 63 | 117 ± 25 | 10.73 ± 0.62 |
| He II Broad | 39.59 ± 0.12 | 1435 ± 77 | 609 ± 32 | 10.15 ± 1.31 |
| Hβ Narrow | 40.39 ± 0.02 | 293 ± 63 | 170 ± 26 | 61.32 ± 1.03 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 41.36 ± 0.01 | 293 ± 63 | 170 ± 26 | 588.20 ± 1.74 |
| He I Narrow | 39.16 ± 0.12 | 276 ± 63 | 117 ± 25 | 3.96 ± 0.46 |
| He I Broad | 39.31 ± 0.17 | 1186 ± 63 | 503 ± 25 | 5.61 ± 1.24 |
| [O I] 6300 | 40.00 ± 0.02 | 276 ± 63 | 117 ± 25 | 28.78 ± 0.59 |
| Hα Narrow | 41.04 ± 0.01 | 276 ± 63 | 117 ± 25 | 246.43 ± 0.99 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 40.51 ± 0.01 | 276 ± 63 | 117 ± 25 | 72.05 ± 0.66 |
| [S II] 6718 | 40.27 ± 0.01 | 276 ± 63 | 117 ± 25 | 54.01 ± 0.61 |
| [S II] 6732 | 40.25 ± 0.01 | 276 ± 63 | 117 ± 25 | 51.93 ± 0.64 |
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 | 0.00 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.44 |
| Host frac | 0.56 |
| log L5100,Host | 42.40 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.03 |
Quality flags
spurious_hab/hbb | 1.0/0 |
|---|---|
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.