LEDA 650270
Observation
| Spectrum ID | 97309490_sp1 |
|---|---|
| Alt name | g1245098-351957 |
| z | 0.0860 |
| RA, Dec | 191.2908, -35.3325 |
| MJD | 60376.6 |
| SNR/Å B/R | 8.4/11.7 |
| Obs Airmass | 1.04 |
| SMSS ID | 97309490 |
| Closest SMSS | 8.63'', 97309488 |
| SMSS Mean r6"ap | 17.2 ± 0.1 |
| 2MASS Kext | 12.5 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.070 |
| Power law αν | -1.19 ± 0.30 |
| log L5100,AGN | 41.32 ± 0.57 |
| log HβBr/[O III] | <-0.56 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.70 ± 0.05 |
| 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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | 39.67 ± 0.44 | 1183 ± 62 | 502 ± 25 | 107.23 ± 79.92 |
| Hβ Narrow | 40.15 ± 0.12 | 365 ± 63 | 223 ± 36 | 330.19 ± 77.72 |
| Hβ Broad | <40.51 | — | — | — |
| [O III] 5007 | 41.07 ± 0.02 | 365 ± 63 | 223 ± 36 | 2820.73 ± 82.05 |
| He I Narrow | 39.40 ± 0.43 | 353 ± 62 | 148 ± 25 | 68.63 ± 48.84 |
| He I Broad | 40.60 ± 0.13 | 3786 ± 62 | 1608 ± 25 | 1098.52 ± 176.72 |
| [O I] 6300 | 40.11 ± 0.11 | 353 ± 62 | 148 ± 25 | 369.74 ± 60.33 |
| Hα Narrow | 40.94 ± 0.02 | 353 ± 62 | 148 ± 25 | 2631.48 ± 61.00 |
| Hα Broad | 41.25 ± 0.03 | 2121 ± 90 | 802 ± 25 | 5292.27 ± 148.99 |
| [N II] 6585 | 40.96 ± 0.02 | 353 ± 62 | 148 ± 25 | 2727.65 ± 59.45 |
| [S II] 6718 | 40.33 ± 0.07 | 353 ± 62 | 148 ± 25 | 649.21 ± 66.98 |
| [S II] 6732 | 40.18 ± 0.10 | 353 ± 62 | 148 ± 25 | 467.66 ± 72.58 |
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 | 4.11 |
|---|---|
| Hβ Broad SNR | 0.55 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.01 |
| Host frac | 0.99 |
| log L5100,Host | 43.51 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
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.