2MASS J08545518-2423373
Observation
| Spectrum ID | 47283434_sp1 |
|---|---|
| Alt name | g0854552-242338 |
| z | 0.0911 |
| RA, Dec | 133.7300, -24.3937 |
| MJD | 60057.37 |
| SNR/Å B/R | 23.5/24.7 |
| Obs Airmass | 1.01 |
| SMSS ID | 47283434 |
| Closest SMSS | 14.10'', 1056835739 |
| SMSS Mean r6"ap | nan ± nan |
| 2MASS Kext | 12.3 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.137 |
| Power law αν | 0.49 ± 0.01 |
| log L5100,AGN | 43.86 ± 0.01 |
| log HβBr/[O III] | 0.86 ± 0.02 |
| log ML5100/M☉ | 8.28 ± 0.01 |
| log MHα/M☉ | 8.08 ± 0.03 |
| log MHβ/M☉ | 8.38 ± 0.01 |
| log M[O III]/M☉ | 8.13 ± 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 | 39.84 ± 0.42 | 724 ± 66 | 509 ± 28 | 0.32 ± 0.24 |
| Hγ Broad | 41.63 ± 0.02 | 3721 ± 231 | 1451 ± 27 | 19.99 ± 0.46 |
| [O III] 4364 | 40.03 ± 0.28 | 621 ± 63 | 263 ± 25 | 0.51 ± 0.18 |
| He II Narrow | 39.64 ± 0.44 | 621 ± 63 | 263 ± 25 | 0.25 ± 0.18 |
| He II Broad | 40.61 ± 0.12 | 2185 ± 65 | 928 ± 26 | 2.32 ± 0.34 |
| Hβ Narrow | 40.71 ± 0.08 | 724 ± 66 | 510 ± 28 | 3.18 ± 0.32 |
| Hβ Broad | 42.24 ± 0.01 | 5215 ± 82 | 2057 ± 25 | 108.68 ± 0.67 |
| [O III] 5007 | 41.38 ± 0.02 | 724 ± 66 | 510 ± 28 | 16.03 ± 0.35 |
| He I Narrow | 40.09 ± 0.16 | 621 ± 63 | 263 ± 25 | 1.24 ± 0.24 |
| He I Broad | 41.26 ± 0.03 | 4857 ± 65 | 2063 ± 26 | 18.08 ± 0.79 |
| [O I] 6300 | 40.02 ± 0.19 | 621 ± 63 | 263 ± 25 | 1.23 ± 0.34 |
| Hα Narrow | 41.24 ± 0.02 | 621 ± 63 | 263 ± 25 | 22.65 ± 0.45 |
| Hα Broad | 42.63 ± 0.01 | 3931 ± 69 | 1609 ± 25 | 555.63 ± 1.19 |
| [N II] 6585 | 40.16 ± 0.23 | 621 ± 63 | 263 ± 25 | 1.92 ± 0.42 |
| [S II] 6718 | 40.32 ± 0.11 | 621 ± 63 | 263 ± 25 | 2.95 ± 0.47 |
| [S II] 6732 | 40.55 ± 0.06 | 621 ± 63 | 263 ± 25 | 4.94 ± 0.50 |
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 | 41.44 |
|---|---|
| Hβ Broad SNR | 17.82 |
| Hγ Broad SNR | 7.19 |
| AGN frac | 0.78 |
| Host frac | 0.22 |
| log L5100,Host | 43.30 |
| Fe II/Hβ | 0.69 |
| Fe II/[O III] | 4.99 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.