2MASS J20473364-3613577
Observation
| Spectrum ID | 233908272_sp1 |
|---|---|
| Alt name | g2047337-361358 |
| z | 0.0934 |
| RA, Dec | 311.8902, -36.2326 |
| MJD | 59823.46 |
| SNR/Å B/R | 7.3/8.6 |
| Obs Airmass | 1.04 |
| SMSS ID | 233908272 |
| Closest SMSS | 10.56'', 1273873386 |
| SMSS Mean r6"ap | 16.2 ± 0.1 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.044 |
| Power law αν | 0.43 ± 0.07 |
| log L5100,AGN | 43.40 ± 0.02 |
| log HβBr/[O III] | 0.59 ± 0.10 |
| log ML5100/M☉ | 7.04 ± 0.10 |
| log MHα/M☉ | 6.58 ± 0.04 |
| log MHβ/M☉ | 6.91 ± 0.11 |
| log M[O III]/M☉ | 6.76 ± 0.11 |
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 | 40.18 ± 0.25 | 321 ± 66 | 492 ± 35 | 2.08 ± 0.86 |
| Hγ Broad | 40.68 ± 0.14 | 2060 ± 320 | 718 ± 73 | 5.90 ± 1.17 |
| [O III] 4364 | 39.56 ± 0.39 | 257 ± 63 | 108 ± 25 | 0.50 ± 0.37 |
| He II Narrow | 39.42 ± 0.43 | 257 ± 63 | 108 ± 25 | 0.43 ± 0.38 |
| He II Broad | 39.74 ± 0.45 | 1225 ± 65 | 520 ± 26 | 0.89 ± 0.85 |
| Hβ Narrow | 40.99 ± 0.07 | 321 ± 66 | 492 ± 35 | 17.30 ± 1.05 |
| Hβ Broad | 41.29 ± 0.07 | 1580 ± 178 | 2680 ± 121 | 35.10 ± 2.89 |
| [O III] 5007 | 40.70 ± 0.07 | 321 ± 66 | 492 ± 35 | 9.59 ± 1.20 |
| He I Narrow | 39.62 ± 0.22 | 257 ± 63 | 108 ± 25 | 1.19 ± 0.33 |
| He I Broad | 40.34 ± 0.12 | 2035 ± 68 | 864 ± 28 | 6.22 ± 0.97 |
| [O I] 6300 | 39.92 ± 0.11 | 257 ± 63 | 108 ± 25 | 2.82 ± 0.43 |
| Hα Narrow | 40.95 ± 0.02 | 257 ± 63 | 108 ± 25 | 33.21 ± 0.49 |
| Hα Broad | 41.65 ± 0.01 | 1390 ± 65 | 601 ± 25 | 166.20 ± 1.50 |
| [N II] 6585 | 40.61 ± 0.02 | 257 ± 63 | 108 ± 25 | 15.57 ± 0.48 |
| [S II] 6718 | 40.02 ± 0.08 | 257 ± 63 | 108 ± 25 | 4.20 ± 0.56 |
| [S II] 6732 | 40.13 ± 0.07 | 257 ± 63 | 108 ± 25 | 5.35 ± 0.53 |
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 | 11.36 |
|---|---|
| Hβ Broad SNR | 2.88 |
| Hγ Broad SNR | 1.39 |
| AGN frac | 0.82 |
| Host frac | 0.18 |
| log L5100,Host | 42.75 |
| Fe II/Hβ | 1.57 |
| Fe II/[O III] | 6.18 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 1 |
hb_width | 2 |
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.