LEDA 152500
Observation
| Spectrum ID | 75828917_sp1 |
|---|---|
| Alt name | g0827341-021247 |
| z | 0.0394 |
| RA, Dec | 126.8923, -2.2130 |
| MJD | 60021.44 |
| SNR/Å B/R | 14.2/36.7 |
| Obs Airmass | 1.14 |
| SMSS ID | 75828917 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.9 ± 0.0 |
| 2MASS Kext | 11.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.027 |
| Power law αν | -0.45 ± 0.37 |
| log L5100,AGN | 42.68 ± 0.06 |
| log HβBr/[O III] | 0.11 ± 0.04 |
| log ML5100/M☉ | 7.26 ± 0.07 |
| log MHα/M☉ | 6.80 ± 0.04 |
| log MHβ/M☉ | 7.24 ± 0.08 |
| log M[O III]/M☉ | 7.31 ± 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 | 39.44 ± 0.28 | 273 ± 63 | 211 ± 28 | 2.27 ± 1.04 |
| Hγ Broad | 40.38 ± 0.08 | 1943 ± 273 | 726 ± 72 | 18.61 ± 2.00 |
| [O III] 4364 | 39.25 ± 0.27 | 238 ± 63 | 100 ± 25 | 1.49 ± 0.62 |
| He II Narrow | 39.23 ± 0.24 | 238 ± 63 | 100 ± 25 | 1.59 ± 0.59 |
| He II Broad | 40.64 ± 0.06 | 8372 ± 115 | 3555 ± 48 | 40.81 ± 3.52 |
| Hβ Narrow | 39.89 ± 0.08 | 273 ± 63 | 211 ± 28 | 7.56 ± 0.98 |
| Hβ Broad | 40.86 ± 0.03 | 2882 ± 197 | 1415 ± 116 | 70.33 ± 3.06 |
| [O III] 5007 | 40.75 ± 0.01 | 273 ± 63 | 211 ± 28 | 58.08 ± 1.07 |
| He I Narrow | 38.61 ± 0.36 | 238 ± 63 | 100 ± 25 | 0.54 ± 0.36 |
| He I Broad | 40.41 ± 0.05 | 6922 ± 189 | 2939 ± 80 | 33.81 ± 2.18 |
| [O I] 6300 | 39.39 ± 0.09 | 238 ± 63 | 100 ± 25 | 3.58 ± 0.41 |
| Hα Narrow | 40.22 ± 0.02 | 238 ± 63 | 100 ± 25 | 26.00 ± 0.50 |
| Hα Broad | 41.36 ± 0.01 | 2202 ± 68 | 991 ± 27 | 361.52 ± 2.22 |
| [N II] 6585 | 40.33 ± 0.01 | 238 ± 63 | 100 ± 25 | 33.74 ± 0.51 |
| [S II] 6718 | 39.87 ± 0.03 | 238 ± 63 | 100 ± 25 | 12.19 ± 0.51 |
| [S II] 6732 | 39.77 ± 0.03 | 238 ± 63 | 100 ± 25 | 9.64 ± 0.49 |
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 | 12.78 |
|---|---|
| Hβ Broad SNR | 3.93 |
| Hγ Broad SNR | 2.54 |
| AGN frac | 0.22 |
| Host frac | 0.78 |
| log L5100,Host | 43.22 |
| Fe II/Hβ | 0.44 |
| Fe II/[O III] | 0.55 |
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.