ESO 360-17
Observation
| Spectrum ID | 18460747_sp1 |
|---|---|
| Alt name | g0435577-355858 |
| z | 0.0605 |
| RA, Dec | 68.9905, -35.9827 |
| MJD | 60296.57 |
| SNR/Å B/R | 10.8/16.6 |
| Obs Airmass | 1.02 |
| SMSS ID | 18460747 |
| Closest SMSS | 12.99'', 18460746 |
| SMSS Mean r6"ap | 16.2 ± 0.1 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.015 |
| Power law αν | 0.31 ± 0.15 |
| log L5100,AGN | 43.05 ± 0.03 |
| log HβBr/[O III] | 0.23 ± 0.03 |
| log ML5100/M☉ | 7.66 ± 0.06 |
| log MHα/M☉ | 7.45 ± 0.03 |
| log MHβ/M☉ | 7.56 ± 0.07 |
| log M[O III]/M☉ | 7.57 ± 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 | 39.60 ± 0.27 | 303 ± 63 | 122 ± 25 | 1.27 ± 0.39 |
| Hγ Broad | 40.10 ± 0.20 | 1350 ± 121 | 488 ± 41 | 3.10 ± 0.93 |
| [O III] 4364 | 39.21 ± 0.39 | 244 ± 63 | 102 ± 25 | 0.52 ± 0.37 |
| He II Narrow | 39.47 ± 0.26 | 244 ± 63 | 102 ± 25 | 1.12 ± 0.38 |
| He II Broad | 39.64 ± 0.36 | 1218 ± 69 | 517 ± 28 | 1.58 ± 0.85 |
| Hβ Narrow | 40.23 ± 0.05 | 303 ± 63 | 122 ± 25 | 6.98 ± 0.47 |
| Hβ Broad | 41.01 ± 0.03 | 3848 ± 228 | 1487 ± 35 | 41.57 ± 1.68 |
| [O III] 5007 | 40.78 ± 0.01 | 303 ± 63 | 122 ± 25 | 26.39 ± 0.47 |
| He I Narrow | 38.91 ± 0.43 | 244 ± 63 | 102 ± 25 | 0.52 ± 0.43 |
| He I Broad | 40.51 ± 0.07 | 3948 ± 66 | 1676 ± 27 | 20.54 ± 2.04 |
| [O I] 6300 | 39.73 ± 0.08 | 244 ± 63 | 102 ± 25 | 4.00 ± 0.47 |
| Hα Narrow | 40.85 ± 0.01 | 244 ± 63 | 102 ± 25 | 58.38 ± 0.73 |
| Hα Broad | 41.57 ± 0.01 | 4024 ± 121 | 1572 ± 35 | 307.95 ± 2.89 |
| [N II] 6585 | 40.73 ± 0.01 | 244 ± 63 | 102 ± 25 | 44.54 ± 0.69 |
| [S II] 6718 | 40.20 ± 0.03 | 244 ± 63 | 102 ± 25 | 13.90 ± 0.68 |
| [S II] 6732 | 40.14 ± 0.04 | 244 ± 63 | 102 ± 25 | 12.00 ± 0.69 |
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 | 7.12 |
|---|---|
| Hβ Broad SNR | 2.86 |
| Hγ Broad SNR | 1.10 |
| AGN frac | 0.43 |
| Host frac | 0.56 |
| log L5100,Host | 43.16 |
| Fe II/Hβ | 0.72 |
| Fe II/[O III] | 1.21 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 1 |
balmer_snr | 1 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.