LEDA 3096637
Observation
| Spectrum ID | 488380405_sp1 |
|---|---|
| Alt name | g2142438-472132 |
| z | 0.0919 |
| RA, Dec | 325.6823, -47.3590 |
| MJD | 60089.78 |
| SNR/Å B/R | 9.7/14.3 |
| Obs Airmass | 1.06 |
| SMSS ID | 488380405 |
| Closest SMSS | 8.08'', 1596841773 |
| SMSS Mean r6"ap | 17.1 ± 0.1 |
| 2MASS Kext | 13.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.019 |
| Power law αν | 0.46 ± 0.04 |
| log L5100,AGN | 43.11 ± 0.04 |
| log HβBr/[O III] | 0.66 ± 0.05 |
| log ML5100/M☉ | 7.43 ± 0.07 |
| log MHα/M☉ | 7.20 ± 0.02 |
| log MHβ/M☉ | 7.53 ± 0.07 |
| log M[O III]/M☉ | 7.36 ± 0.08 |
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 | 39.76 ± 0.34 | 323 ± 64 | 293 ± 48 | 1.52 ± 1.02 |
| Hγ Broad | 40.54 ± 0.13 | 1642 ± 245 | 575 ± 50 | 8.55 ± 1.40 |
| [O III] 4364 | 39.57 ± 0.35 | 302 ± 63 | 128 ± 25 | 1.01 ± 0.53 |
| He II Narrow | 39.54 ± 0.35 | 302 ± 63 | 128 ± 25 | 1.11 ± 0.63 |
| He II Broad | 41.17 ± 0.04 | 7997 ± 63 | 3396 ± 25 | 47.77 ± 3.38 |
| Hβ Narrow | — | — | — | — |
| Hβ Broad | 41.53 ± 0.02 | 2841 ± 225 | 1986 ± 53 | 119.92 ± 3.62 |
| [O III] 5007 | 40.87 ± 0.04 | 323 ± 64 | 293 ± 48 | 28.02 ± 1.53 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.67 ± 0.04 | 1950 ± 63 | 828 ± 25 | 26.20 ± 1.95 |
| [O I] 6300 | 39.66 ± 0.22 | 302 ± 63 | 128 ± 25 | 3.04 ± 1.02 |
| Hα Narrow | 40.57 ± 0.04 | 302 ± 63 | 128 ± 25 | 27.46 ± 1.05 |
| Hα Broad | 41.87 ± 0.01 | 2426 ± 65 | 1359 ± 34 | 544.73 ± 6.95 |
| [N II] 6585 | 40.44 ± 0.04 | 302 ± 63 | 128 ± 25 | 20.43 ± 1.03 |
| [S II] 6718 | 39.46 ± 0.33 | 302 ± 63 | 128 ± 25 | 2.21 ± 1.50 |
| [S II] 6732 | 39.77 ± 0.17 | 302 ± 63 | 128 ± 25 | 4.61 ± 1.50 |
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 | 12.08 |
|---|---|
| Hβ Broad SNR | 5.58 |
| Hγ Broad SNR | 1.55 |
| AGN frac | 0.37 |
| Host frac | 0.63 |
| log L5100,Host | 43.35 |
| Fe II/Hβ | 0.23 |
| Fe II/[O III] | 1.07 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
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.