2MASS J11182454-4116050
Observation
| Spectrum ID | 84145119_sp1 |
|---|---|
| Alt name | 5383331804314573056 |
| z | 0.0899 |
| RA, Dec | 169.6023, -41.2681 |
| MJD | 60675.71 |
| SNR/Å B/R | 17.0/20.9 |
| Obs Airmass | 1.08 |
| SMSS ID | 84145119 |
| Closest SMSS | 13.21'', 84145120 |
| SMSS Mean r6"ap | 16.5 ± 0.2 |
| 2MASS Kext | 12.9 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | AllBRICQS2 |
| MW E(B−V) | 0.117 |
| Power law αν | 0.47 ± 0.02 |
| log L5100,AGN | 43.88 ± 0.01 |
| log HβBr/[O III] | 0.09 ± 0.23 |
| log ML5100/M☉ | 7.48 ± 0.02 |
| log MHα/M☉ | 7.21 ± 0.04 |
| log MHβ/M☉ | 7.44 ± 0.11 |
| log M[O III]/M☉ | 7.57 ± 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 | 40.53 ± 0.20 | 583 ± 64 | 294 ± 25 | 1.52 ± 0.28 |
| Hγ Broad | 41.74 ± 0.03 | 2020 ± 109 | 1107 ± 57 | 25.10 ± 0.77 |
| [O III] 4364 | 40.24 ± 0.18 | 383 ± 64 | 162 ± 25 | 0.79 ± 0.20 |
| He II Narrow | 40.51 ± 0.08 | 383 ± 64 | 162 ± 25 | 1.75 ± 0.21 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.96 ± 0.07 | 583 ± 64 | 294 ± 25 | 5.42 ± 0.34 |
| Hβ Broad | 41.96 +0.46−0.01 | 2058 ± 42 | 757 ± 25 | 54.00 ± 0.59 |
| [O III] 5007 | 41.87 ± 0.01 | 583 ± 64 | 294 ± 25 | 47.53 ± 0.39 |
| He I Narrow | 39.90 ± 0.19 | 383 ± 64 | 162 ± 25 | 0.75 ± 0.19 |
| He I Broad | 41.32 ± 0.02 | 2949 ± 85 | 1252 ± 35 | 20.10 ± 0.66 |
| [O I] 6300 | 40.00 ± 0.16 | 383 ± 64 | 162 ± 25 | 1.12 ± 0.26 |
| Hα Narrow | 41.00 ± 0.04 | 383 ± 64 | 162 ± 25 | 12.38 ± 0.37 |
| Hα Broad | 42.47 ± 0.01 | 1623 ± 64 | 752 ± 25 | 371.71 ± 0.97 |
| [N II] 6585 | 41.01 ± 0.03 | 383 ± 64 | 162 ± 25 | 12.75 ± 0.34 |
| [S II] 6718 | 40.71 ± 0.03 | 383 ± 64 | 162 ± 25 | 6.71 ± 0.38 |
| [S II] 6732 | 40.65 ± 0.04 | 383 ± 64 | 162 ± 25 | 5.89 ± 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 | 46.06 |
|---|---|
| Hβ Broad SNR | 17.18 |
| Hγ Broad SNR | 9.46 |
| AGN frac | 0.84 |
| Host frac | 0.16 |
| log L5100,Host | 43.17 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
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.