ESO 381-7
Observation
| Spectrum ID | 97419092_sp1 |
|---|---|
| Alt name | g1240470-333412 |
| z | 0.0552 |
| RA, Dec | 190.1957, -33.5699 |
| MJD | 60081.43 |
| SNR/Å B/R | 13.0/25.5 |
| Obs Airmass | 1.02 |
| SMSS ID | 97419092 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.8 ± 0.1 |
| 2MASS Kext | 11.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.068 |
| Power law αν | -0.96 ± 0.30 |
| log L5100,AGN | 43.12 ± 0.05 |
| log HβBr/[O III] | -0.35 ± 0.02 |
| log ML5100/M☉ | 7.83 ± 0.08 |
| log MHα/M☉ | 7.70 ± 0.02 |
| log MHβ/M☉ | 7.86 ± 0.08 |
| log M[O III]/M☉ | 8.17 ± 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 | 40.19 ± 0.16 | 368 ± 63 | 227 ± 26 | 5.06 ± 0.97 |
| Hγ Broad | 40.63 ± 0.10 | 1883 ± 227 | 655 ± 34 | 13.80 ± 1.32 |
| [O III] 4364 | 40.19 ± 0.08 | 341 ± 63 | 144 ± 25 | 5.12 ± 0.61 |
| He II Narrow | 39.92 ± 0.16 | 341 ± 63 | 144 ± 25 | 2.95 ± 0.58 |
| He II Broad | 39.83 ± 0.37 | 1694 ± 104 | 719 ± 43 | 2.45 ± 1.26 |
| Hβ Narrow | 40.69 ± 0.03 | 368 ± 63 | 227 ± 26 | 18.17 ± 0.97 |
| Hβ Broad | 41.39 ± 0.02 | 4470 ± 380 | 1798 ± 44 | 89.30 ± 2.42 |
| [O III] 5007 | 41.74 ± 0.01 | 368 ± 63 | 227 ± 26 | 206.25 ± 1.14 |
| He I Narrow | 39.38 ± 0.37 | 341 ± 63 | 144 ± 25 | 1.06 ± 0.63 |
| He I Broad | 40.08 ± 0.17 | 1180 ± 62 | 501 ± 25 | 5.40 ± 1.11 |
| [O I] 6300 | 40.53 ± 0.02 | 341 ± 63 | 144 ± 25 | 16.20 ± 0.61 |
| Hα Narrow | 41.17 ± 0.01 | 341 ± 63 | 144 ± 25 | 73.46 ± 0.95 |
| Hα Broad | 42.17 ± 0.01 | 3494 ± 76 | 1541 ± 25 | 748.63 ± 2.98 |
| [N II] 6585 | 41.24 ± 0.01 | 341 ± 63 | 144 ± 25 | 86.95 ± 0.90 |
| [S II] 6718 | 40.93 ± 0.01 | 341 ± 63 | 144 ± 25 | 43.80 ± 0.74 |
| [S II] 6732 | 40.84 ± 0.01 | 341 ± 63 | 144 ± 25 | 35.90 ± 0.72 |
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 | 20.56 |
|---|---|
| Hβ Broad SNR | 3.91 |
| Hγ Broad SNR | 1.98 |
| AGN frac | 0.27 |
| Host frac | 0.73 |
| log L5100,Host | 43.55 |
| Fe II/Hβ | 0.34 |
| Fe II/[O III] | 0.15 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
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.