LEDA 901616
Observation
| Spectrum ID | 90948400_sp2 |
|---|---|
| Alt name | g1032141-160960 |
| z | 0.0523 |
| RA, Dec | 158.0589, -16.1666 |
| MJD | 60403.46 |
| SNR/Å B/R | 4.5/9.6 |
| Obs Airmass | 1.05 |
| SMSS ID | 90948400 |
| Closest SMSS | 12.06'', 90948398 |
| SMSS Mean r6"ap | 16.8 ± 0.1 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Bad |
|---|---|
| Quality Flag | bad_blue |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.061 |
| Power law αν | -0.21 ± 0.31 |
| log L5100,AGN | 42.52 ± 0.04 |
| log HβBr/[O III] | -0.20 ± 0.63 |
| log ML5100/M☉ | 6.41 ± 0.04 |
| log MHα/M☉ | 6.00 ± 0.07 |
| log MHβ/M☉ | 6.08 ± 0.30 |
| log M[O III]/M☉ | 6.27 ± 0.07 |
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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.21 ± 0.28 | 276 ± 63 | 115 ± 25 | 2.19 ± 0.88 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.18 ± 0.41 | 291 ± 64 | 326 ± 67 | 2.17 ± 1.87 |
| Hβ Broad | 40.02 +1.14−0.10 | 1178 ± 25 | 416 ± 25 | 14.84 ± 1.91 |
| [O III] 5007 | 40.22 ± 0.06 | 291 ± 64 | 326 ± 66 | 24.81 ± 2.07 |
| He I Narrow | 38.68 ± 0.37 | 276 ± 63 | 115 ± 25 | 0.96 ± 0.49 |
| He I Broad | 39.38 ± 0.19 | 1257 ± 63 | 534 ± 25 | 4.79 ± 1.08 |
| [O I] 6300 | 38.92 ± 0.24 | 276 ± 63 | 115 ± 25 | 1.90 ± 0.56 |
| Hα Narrow | 39.64 ± 0.07 | 276 ± 63 | 115 ± 25 | 10.59 ± 0.69 |
| Hα Broad | 40.70 ± 0.02 | 1393 ± 65 | 631 ± 38 | 121.40 ± 2.35 |
| [N II] 6585 | 39.61 ± 0.05 | 276 ± 63 | 115 ± 25 | 10.03 ± 0.66 |
| [S II] 6718 | 39.15 ± 0.13 | 276 ± 63 | 115 ± 25 | 3.61 ± 0.62 |
| [S II] 6732 | 39.13 ± 0.12 | 276 ± 63 | 115 ± 25 | 3.42 ± 0.62 |
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 | 4.95 |
|---|---|
| Hβ Broad SNR | 1.90 |
| Hγ Broad SNR | 0.89 |
| AGN frac | 0.65 |
| Host frac | 0.35 |
| log L5100,Host | 42.24 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 0 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
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.