2MASS J13543948-4214564
Observation
| Spectrum ID | 308129573_sp1 |
|---|---|
| Alt name | g1354395-421457 |
| z | 0.0763 |
| RA, Dec | 208.6645, -42.2490 |
| MJD | 60382.77 |
| SNR/Å B/R | 17.4/16.8 |
| Obs Airmass | 1.10 |
| SMSS ID | 308129573 |
| Closest SMSS | 12.95'', 1373820705 |
| SMSS Mean r6"ap | 15.7 ± 0.1 |
| 2MASS Kext | 11.9 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.070 |
| Power law αν | 0.42 ± 0.06 |
| log L5100,AGN | 43.92 ± 0.01 |
| log HβBr/[O III] | 0.42 ± 0.01 |
| log ML5100/M☉ | 7.59 ± 0.02 |
| log MHα/M☉ | 7.46 ± 0.04 |
| log MHβ/M☉ | 7.67 ± 0.02 |
| log M[O III]/M☉ | 7.65 ± 0.02 |
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 | 40.60 ± 0.09 | 264 ± 63 | 176 ± 25 | 1.64 ± 0.18 |
| Hγ Broad | 41.82 ± 0.02 | 2186 ± 180 | 1077 ± 47 | 27.39 ± 0.52 |
| [O III] 4364 | 40.12 ± 0.16 | 247 ± 63 | 104 ± 25 | 0.56 ± 0.13 |
| He II Narrow | 40.31 ± 0.09 | 247 ± 63 | 104 ± 25 | 1.02 ± 0.14 |
| He II Broad | 41.61 ± 0.03 | 5296 ± 222 | 2249 ± 94 | 20.15 ± 0.65 |
| Hβ Narrow | 40.93 ± 0.04 | 264 ± 63 | 176 ± 25 | 4.62 ± 0.23 |
| Hβ Broad | 42.27 ± 0.01 | 2287 ± 47 | 1372 ± 44 | 101.65 ± 0.88 |
| [O III] 5007 | 41.86 ± 0.01 | 264 ± 63 | 176 ± 25 | 41.62 ± 0.28 |
| He I Narrow | 39.65 ± 0.27 | 247 ± 63 | 104 ± 25 | 0.38 ± 0.17 |
| He I Broad | 41.43 ± 0.02 | 2617 ± 118 | 1111 ± 49 | 22.74 ± 0.61 |
| [O I] 6300 | 40.27 ± 0.07 | 247 ± 63 | 104 ± 25 | 1.89 ± 0.19 |
| Hα Narrow | 41.47 ± 0.01 | 247 ± 63 | 104 ± 25 | 32.91 ± 0.36 |
| Hα Broad | 42.64 ± 0.01 | 1904 ± 65 | 938 ± 25 | 490.50 ± 1.13 |
| [N II] 6585 | 40.90 ± 0.02 | 247 ± 63 | 104 ± 25 | 8.88 ± 0.29 |
| [S II] 6718 | 40.80 ± 0.02 | 247 ± 63 | 104 ± 25 | 7.39 ± 0.30 |
| [S II] 6732 | 40.67 ± 0.04 | 247 ± 63 | 104 ± 25 | 5.53 ± 0.35 |
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 | 56.75 |
|---|---|
| Hβ Broad SNR | 24.73 |
| Hγ Broad SNR | 11.31 |
| AGN frac | 0.87 |
| Host frac | 0.13 |
| log L5100,Host | 43.11 |
| Fe II/Hβ | 0.51 |
| Fe II/[O III] | 1.34 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.