LEDA 981816
Observation
| Spectrum ID | 13624525_sp1 |
|---|---|
| Alt name | g0110090-100844 |
| z | 0.0585 |
| RA, Dec | 17.5375, -10.1455 |
| MJD | 60225.59 |
| SNR/Å B/R | 14.8/26.9 |
| Obs Airmass | 1.07 |
| SMSS ID | 13624525 |
| Closest SMSS | 7.69'', 13624526 |
| SMSS Mean r6"ap | 16.7 ± 0.1 |
| 2MASS Kext | 12.5 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.030 |
| Power law αν | -1.78 ± 0.15 |
| log L5100,AGN | 43.11 ± 0.02 |
| log HβBr/[O III] | -0.45 ± 0.35 |
| log ML5100/M☉ | 7.23 ± 0.03 |
| log MHα/M☉ | 6.72 ± 0.04 |
| log MHβ/M☉ | 6.85 ± 0.18 |
| log M[O III]/M☉ | 7.18 ± 0.04 |
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 | 39.51 ± 0.27 | 410 ± 68 | 238 ± 26 | 1.22 ± 0.43 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.41 ± 0.22 | 293 ± 63 | 124 ± 25 | 0.99 ± 0.30 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.43 ± 0.04 | 410 ± 68 | 238 ± 25 | 10.30 ± 0.41 |
| Hβ Broad | 40.46 +0.63−0.08 | 2268 ± 41 | 844 ± 25 | 11.10 ± 0.84 |
| [O III] 5007 | 40.91 ± 0.01 | 410 ± 68 | 238 ± 25 | 31.50 ± 0.42 |
| He I Narrow | 39.57 ± 0.09 | 293 ± 63 | 124 ± 25 | 1.49 ± 0.20 |
| He I Broad | 40.29 ± 0.08 | 3923 ± 66 | 1666 ± 27 | 7.97 ± 0.81 |
| [O I] 6300 | 39.55 ± 0.13 | 293 ± 63 | 124 ± 25 | 1.44 ± 0.22 |
| Hα Narrow | 40.90 ± 0.01 | 293 ± 63 | 124 ± 25 | 32.59 ± 0.28 |
| Hα Broad | 41.50 ± 0.01 | 1822 ± 65 | 823 ± 26 | 130.07 ± 0.89 |
| [N II] 6585 | 40.61 ± 0.01 | 293 ± 63 | 124 ± 25 | 16.73 ± 0.25 |
| [S II] 6718 | 40.27 ± 0.02 | 293 ± 63 | 124 ± 25 | 7.74 ± 0.24 |
| [S II] 6732 | 40.17 ± 0.02 | 293 ± 63 | 124 ± 25 | 6.23 ± 0.22 |
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 | 17.63 |
|---|---|
| Hβ Broad SNR | 1.95 |
| Hγ Broad SNR | 0.35 |
| AGN frac | 0.52 |
| Host frac | 0.48 |
| log L5100,Host | 43.08 |
| 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 | 0 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.