IRAS F23590-7713
Observation
| Spectrum ID | 491327996_sp1 |
|---|---|
| Alt name | g0001461-765714 |
| z | 0.0585 |
| RA, Dec | 0.4420, -76.9540 |
| MJD | 60254.46 |
| SNR/Å B/R | 13.5/21.8 |
| Obs Airmass | 1.43 |
| SMSS ID | 491327996 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.9 ± 0.2 |
| 2MASS Kext | 12.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.050 |
| Power law αν | 0.34 ± 0.14 |
| log L5100,AGN | 43.26 ± 0.04 |
| log HβBr/[O III] | -0.32 ± 0.02 |
| log ML5100/M☉ | 8.01 ± 0.04 |
| log MHα/M☉ | 7.69 ± 0.02 |
| log MHβ/M☉ | 7.97 ± 0.04 |
| log M[O III]/M☉ | 8.28 ± 0.03 |
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 | 40.31 ± 0.08 | 385 ± 63 | 210 ± 25 | 3.97 ± 0.44 |
| Hγ Broad | 40.80 ± 0.08 | 3153 ± 606 | 1120 ± 109 | 13.14 ± 0.94 |
| [O III] 4364 | 39.93 ± 0.16 | 336 ± 63 | 142 ± 25 | 1.67 ± 0.33 |
| He II Narrow | 39.91 ± 0.14 | 336 ± 63 | 142 ± 25 | 1.91 ± 0.34 |
| He II Broad | 39.99 ± 0.27 | 1405 ± 273 | 597 ± 115 | 1.98 ± 0.68 |
| Hβ Narrow | 40.67 ± 0.03 | 385 ± 63 | 210 ± 25 | 11.75 ± 0.49 |
| Hβ Broad | 41.37 ± 0.02 | 5149 ± 178 | 1870 ± 88 | 58.82 ± 1.40 |
| [O III] 5007 | 41.70 ± 0.01 | 385 ± 63 | 210 ± 25 | 135.71 ± 0.61 |
| He I Narrow | 39.48 ± 0.25 | 336 ± 63 | 142 ± 25 | 1.19 ± 0.39 |
| He I Broad | 40.34 ± 0.12 | 2118 ± 434 | 899 ± 184 | 7.96 ± 1.02 |
| [O I] 6300 | 40.57 ± 0.02 | 336 ± 63 | 142 ± 25 | 17.30 ± 0.45 |
| Hα Narrow | 41.13 ± 0.01 | 336 ± 63 | 142 ± 25 | 69.02 ± 0.76 |
| Hα Broad | 42.19 ± 0.01 | 3446 ± 71 | 2200 ± 44 | 791.32 ± 3.59 |
| [N II] 6585 | 41.15 ± 0.01 | 336 ± 63 | 142 ± 25 | 72.29 ± 0.71 |
| [S II] 6718 | 40.77 ± 0.01 | 336 ± 63 | 142 ± 25 | 31.46 ± 0.55 |
| [S II] 6732 | 40.73 ± 0.01 | 336 ± 63 | 142 ± 25 | 29.33 ± 0.56 |
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 | 21.49 |
|---|---|
| Hβ Broad SNR | 4.01 |
| Hγ Broad SNR | 2.16 |
| AGN frac | 0.45 |
| Host frac | 0.55 |
| log L5100,Host | 43.34 |
| Fe II/Hβ | 0.10 |
| Fe II/[O III] | 0.05 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
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.