2dFGRS TGS354Z193
Observation
| Spectrum ID | 3057771_sp1 |
|---|---|
| Alt name | 2327340974093060224 |
| z | 0.0825 |
| RA, Dec | 355.7661, -30.6427 |
| MJD | 60478.79 |
| SNR/Å B/R | 10.7/13.5 |
| Obs Airmass | 1.03 |
| SMSS ID | 3057771 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.9 ± 0.0 |
| 2MASS Kext | 13.9 ± 0.1 |
AGN Properties
| Spectrum Type | Bad |
|---|---|
| Quality Flag | bad_all |
| AGN reference | AllBRICQS2 |
| MW E(B−V) | 0.012 |
| Power law αν | -1.25 ± 0.03 |
| log L5100,AGN | 43.24 ± 0.03 |
| 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 | 39.84 ± 0.12 | 192 ± 63 | 108 ± 33 | 1.71 ± 0.49 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | — | — | — | — |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | — | — | — | — |
| He I Narrow | 39.20 ± 0.35 | 180 ± 62 | 76 ± 25 | 0.52 ± 0.50 |
| He I Broad | 39.97 ± 0.29 | 1194 ± 62 | 507 ± 25 | 3.07 ± 1.29 |
| [O I] 6300 | 39.78 ± 0.13 | 180 ± 62 | 76 ± 25 | 2.11 ± 0.58 |
| Hα Narrow | 39.32 ± 0.30 | 180 ± 62 | 76 ± 25 | 0.75 ± 0.46 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | — | — | — | — |
| [S II] 6718 | — | — | — | — |
| [S II] 6732 | 39.90 ± 0.09 | 180 ± 62 | 76 ± 25 | 2.91 ± 0.63 |
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 | 0.25 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.34 |
| Host frac | 0.66 |
| log L5100,Host | 43.52 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
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.