2MASS J09172721-6456270
Observation
| Spectrum ID | 457468024_sp2 |
|---|---|
| Alt name | g0917272-645628 |
| z | 0.0860 |
| RA, Dec | 139.3634, -64.9408 |
| MJD | 59026.36 |
| SNR/Å B/R | 3.4/5.7 |
| Obs Airmass | 1.45 |
| SMSS ID | 457468024 |
| Closest SMSS | 6.17'', 457468026 |
| SMSS Mean r6"ap | 16.8 ± 0.2 |
| 2MASS Kext | 13.4 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.180 |
| Power law αν | -1.20 ± 0.47 |
| log L5100,AGN | 42.74 ± 0.20 |
| log HβBr/[O III] | <-1.26 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 8.73 ± 0.03 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 41.07 ± 0.08 | 573 ± 62 | 242 ± 25 | 92.87 ± 6.48 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 40.90 ± 0.07 | 571 ± 62 | 242 ± 25 | 65.89 ± 6.35 |
| He II Narrow | 40.52 ± 0.19 | 571 ± 62 | 242 ± 25 | 28.93 ± 5.81 |
| He II Broad | 40.05 ± 0.52 | 1183 ± 63 | 502 ± 25 | 9.74 ± 7.98 |
| Hβ Narrow | 41.41 ± 0.03 | 573 ± 62 | 242 ± 25 | 226.68 ± 6.28 |
| Hβ Broad | <41.14 | — | — | — |
| [O III] 5007 | 42.40 ± 0.01 | 573 ± 62 | 242 ± 25 | 2325.61 ± 7.68 |
| He I Narrow | 40.15 ± 0.42 | 571 ± 62 | 242 ± 25 | 14.66 ± 8.62 |
| He I Broad | 40.86 ± 0.20 | 1797 ± 63 | 763 ± 25 | 75.54 ± 14.74 |
| [O I] 6300 | 41.31 ± 0.03 | 571 ± 62 | 242 ± 25 | 228.06 ± 10.81 |
| Hα Narrow | 42.26 ± 0.01 | 571 ± 62 | 242 ± 25 | 2090.61 ± 10.71 |
| Hα Broad | 42.70 ± 0.01 | 7906 ± 117 | 2965 ± 25 | 5715.58 ± 42.60 |
| [N II] 6585 | 41.81 ± 0.01 | 571 ± 62 | 242 ± 25 | 734.30 ± 10.49 |
| [S II] 6718 | 41.51 ± 0.02 | 571 ± 62 | 242 ± 25 | 374.43 ± 12.99 |
| [S II] 6732 | 41.37 ± 0.03 | 571 ± 62 | 242 ± 25 | 275.55 ± 12.31 |
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 | 9.90 |
|---|---|
| Hβ Broad SNR | 0.70 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.13 |
| Host frac | 0.86 |
| log L5100,Host | 43.55 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.03 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.