APMBGC 081-007-020
Observation
| Spectrum ID | 499676875_sp1 |
|---|---|
| Alt name | RXS J02146-6430 |
| z | 0.0740 |
| RA, Dec | 33.6558, -64.5014 |
| MJD | 60918.72 |
| SNR/Å B/R | 6.8/8.8 |
| Obs Airmass | 1.19 |
| SMSS ID | 499676875 |
| Closest SMSS | 14.60'', 499676872 |
| SMSS Mean r6"ap | 15.4 ± 0.1 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | S+2000 |
| MW E(B−V) | 0.022 |
| Power law αν | -0.33 ± 0.06 |
| log L5100,AGN | 44.29 ± 0.01 |
| log HβBr/[O III] | 0.91 ± 0.04 |
| log ML5100/M☉ | 8.22 ± 0.06 |
| log MHα/M☉ | 8.29 ± 0.05 |
| log MHβ/M☉ | 8.28 ± 0.06 |
| log M[O III]/M☉ | 8.03 ± 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 | 40.78 ± 0.31 | — | 194 ± 30 | 1.10 ± 0.42 |
| Hγ Broad | 42.21 ± 0.05 | 3967 ± 346 | 1482 ± 136 | 29.57 ± 1.40 |
| [O III] 4364 | 40.47 ± 0.32 | 133 ± 65 | 54 ± 26 | 0.49 ± 0.24 |
| He II Narrow | 40.21 ± 0.38 | 133 ± 65 | 54 ± 26 | 0.30 ± 0.19 |
| He II Broad | 41.69 ± 0.08 | 3241 ± 111 | 1376 ± 46 | 11.11 ± 1.21 |
| Hβ Narrow | 40.70 ± 0.35 | — | 194 ± 30 | 1.09 ± 0.45 |
| Hβ Broad | 42.57 ± 0.02 | 3938 ± 274 | 1464 ± 105 | 84.69 ± 1.48 |
| [O III] 5007 | 41.67 ± 0.03 | — | 194 ± 30 | 10.86 ± 0.48 |
| He I Narrow | 40.21 ± 0.39 | 133 ± 65 | 54 ± 26 | 0.45 ± 0.27 |
| He I Broad | 41.17 ± 0.12 | 1193 ± 67 | 506 ± 27 | 4.64 ± 0.62 |
| [O I] 6300 | 40.09 ± 0.31 | 133 ± 65 | 54 ± 26 | 0.38 ± 0.18 |
| Hα Narrow | 40.59 ± 0.26 | 133 ± 65 | 54 ± 26 | 1.29 ± 0.37 |
| Hα Broad | 43.04 ± 0.01 | 3753 ± 103 | 1578 ± 39 | 429.70 ± 1.80 |
| [N II] 6585 | 40.52 ± 0.30 | 133 ± 65 | 54 ± 26 | 1.14 ± 0.34 |
| [S II] 6718 | 40.46 ± 0.24 | 133 ± 65 | 54 ± 26 | 1.10 ± 0.23 |
| [S II] 6732 | 40.46 ± 0.21 | 133 ± 65 | 54 ± 26 | 1.05 ± 0.23 |
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 | 16.55 |
|---|---|
| Hβ Broad SNR | 7.55 |
| Hγ Broad SNR | 3.51 |
| AGN frac | 0.98 |
| Host frac | 0.02 |
| log L5100,Host | 42.65 |
| Fe II/Hβ | 0.28 |
| Fe II/[O III] | 2.26 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.