CTS 117
Observation
| Spectrum ID | 2621377_sp1 |
|---|---|
| Alt name | g2307402-342753 |
| z | 0.0849 |
| RA, Dec | 346.9173, -34.4648 |
| MJD | 60176.62 |
| SNR/Å B/R | 22.4/26.6 |
| Obs Airmass | 1.01 |
| SMSS ID | 2621377 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.5 ± 0.0 |
| 2MASS Kext | 12.0 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.014 |
| Power law αν | 0.31 ± 0.04 |
| log L5100,AGN | 43.98 ± 0.01 |
| log HβBr/[O III] | 1.36 ± 0.03 |
| log ML5100/M☉ | 8.46 ± 0.02 |
| log MHα/M☉ | 8.21 ± 0.03 |
| log MHβ/M☉ | 8.54 ± 0.02 |
| log M[O III]/M☉ | 8.05 ± 0.04 |
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 | 39.97 ± 0.31 | 536 ± 63 | 182 ± 25 | 0.34 ± 0.11 |
| Hγ Broad | 41.55 ± 0.03 | 3370 ± 408 | 1472 ± 50 | 12.90 ± 0.45 |
| [O III] 4364 | 39.52 ± 0.42 | 212 ± 62 | 88 ± 25 | 0.12 ± 0.09 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.22 ± 0.16 | 536 ± 63 | 182 ± 25 | 0.78 ± 0.13 |
| Hβ Broad | 42.32 ± 0.01 | 6034 ± 104 | 3815 ± 50 | 99.61 ± 1.02 |
| [O III] 5007 | 40.95 ± 0.03 | 536 ± 63 | 182 ± 25 | 4.57 ± 0.15 |
| He I Narrow | — | — | — | — |
| He I Broad | 41.28 ± 0.03 | 4894 ± 62 | 2078 ± 25 | 14.04 ± 0.51 |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 40.83 ± 0.02 | 212 ± 62 | 88 ± 25 | 6.35 ± 0.18 |
| Hα Broad | 42.62 ± 0.01 | 4631 ± 65 | 2052 ± 25 | 395.49 ± 1.08 |
| [N II] 6585 | 40.51 ± 0.04 | 212 ± 62 | 88 ± 25 | 3.12 ± 0.17 |
| [S II] 6718 | 39.71 ± 0.23 | 212 ± 62 | 88 ± 25 | 0.51 ± 0.17 |
| [S II] 6732 | 39.67 ± 0.24 | 212 ± 62 | 88 ± 25 | 0.47 ± 0.15 |
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 | 28.48 |
|---|---|
| Hβ Broad SNR | 12.19 |
| Hγ Broad SNR | 5.17 |
| AGN frac | 0.91 |
| Host frac | 0.09 |
| log L5100,Host | 43.00 |
| Fe II/Hβ | 0.47 |
| Fe II/[O III] | 10.94 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
hb_width | 1 |
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.