2MASS J00395667-1749404
Observation
| Spectrum ID | 12051737_sp1 |
|---|---|
| Alt name | g0039566-174940 |
| z | 0.0874 |
| RA, Dec | 9.9861, -17.8279 |
| MJD | 60225.57 |
| SNR/Å B/R | 12.6/20.6 |
| Obs Airmass | 1.03 |
| SMSS ID | 12051737 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.2 ± 0.1 |
| 2MASS Kext | 13.5 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.018 |
| Power law αν | -1.78 ± 0.10 |
| log L5100,AGN | 43.48 ± 0.01 |
| log HβBr/[O III] | -0.29 ± 0.03 |
| log ML5100/M☉ | 7.02 ± 0.05 |
| log MHα/M☉ | 6.56 ± 0.04 |
| log MHβ/M☉ | 6.82 ± 0.06 |
| log M[O III]/M☉ | 7.11 ± 0.05 |
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 | 40.49 ± 0.07 | 402 ± 63 | 253 ± 26 | 5.04 ± 0.42 |
| Hγ Broad | 40.34 ± 0.16 | 1229 ± 70 | 391 ± 25 | 3.09 ± 0.55 |
| [O III] 4364 | 39.71 ± 0.22 | 360 ± 63 | 152 ± 25 | 0.84 ± 0.28 |
| He II Narrow | 39.95 ± 0.13 | 360 ± 63 | 152 ± 25 | 1.47 ± 0.26 |
| He II Broad | 41.18 ± 0.06 | 17659 ± 63 | 7499 ± 25 | 25.21 ± 2.05 |
| Hβ Narrow | 40.76 ± 0.05 | 402 ± 63 | 253 ± 26 | 9.59 ± 0.42 |
| Hβ Broad | 41.23 ± 0.03 | 1477 ± 75 | 932 ± 50 | 28.40 ± 0.94 |
| [O III] 5007 | 41.52 ± 0.01 | 402 ± 63 | 253 ± 26 | 55.96 ± 0.47 |
| He I Narrow | 39.92 ± 0.16 | 360 ± 63 | 152 ± 25 | 1.45 ± 0.23 |
| He I Broad | 40.17 ± 0.13 | 1180 ± 62 | 501 ± 25 | 2.57 ± 0.37 |
| [O I] 6300 | 40.25 ± 0.04 | 360 ± 63 | 152 ± 25 | 3.12 ± 0.20 |
| Hα Narrow | 41.30 ± 0.01 | 360 ± 63 | 152 ± 25 | 35.28 ± 0.24 |
| Hα Broad | 41.73 ± 0.01 | 1292 ± 63 | 552 ± 25 | 95.92 ± 0.60 |
| [N II] 6585 | 41.19 ± 0.01 | 360 ± 63 | 152 ± 25 | 27.62 ± 0.26 |
| [S II] 6718 | 40.68 ± 0.02 | 360 ± 63 | 152 ± 25 | 8.68 ± 0.25 |
| [S II] 6732 | 40.60 ± 0.02 | 360 ± 63 | 152 ± 25 | 7.18 ± 0.25 |
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 | 23.73 |
|---|---|
| Hβ Broad SNR | 7.40 |
| Hγ Broad SNR | 1.70 |
| AGN frac | 0.81 |
| Host frac | 0.19 |
| log L5100,Host | 42.85 |
| Fe II/Hβ | 1.75 |
| Fe II/[O III] | 0.90 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 1 |
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.