LEDA 1102248
Observation
| Spectrum ID | 89572623_sp1 |
|---|---|
| Alt name | g0917289-020452 |
| z | 0.0531 |
| RA, Dec | 139.3705, -2.0812 |
| MJD | 60020.5 |
| SNR/Å B/R | 6.4/18.8 |
| Obs Airmass | 1.15 |
| SMSS ID | 89572623 |
| Closest SMSS | 5.99'', 2146985701 |
| SMSS Mean r6"ap | 16.4 ± 0.1 |
| 2MASS Kext | 12.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.040 |
| Power law αν | 0.49 ± 0.01 |
| log L5100,AGN | 42.08 ± 0.10 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| 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 | 39.38 ± 0.35 | 412 ± 62 | 174 ± 25 | 6.75 ± 3.89 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | 39.33 ± 0.45 | 1182 ± 62 | 502 ± 25 | 7.28 ± 6.65 |
| Hβ Narrow | 39.88 ± 0.12 | 412 ± 62 | 174 ± 25 | 29.51 ± 4.18 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 40.33 ± 0.03 | 412 ± 62 | 174 ± 25 | 87.03 ± 4.62 |
| He I Narrow | 39.07 ± 0.33 | 406 ± 62 | 170 ± 25 | 7.09 ± 2.88 |
| He I Broad | 39.06 ± 0.52 | 1191 ± 62 | 505 ± 25 | 6.83 ± 4.94 |
| [O I] 6300 | 39.34 ± 0.15 | 406 ± 62 | 170 ± 25 | 15.44 ± 3.42 |
| Hα Narrow | 40.67 ± 0.01 | 406 ± 62 | 170 ± 25 | 370.59 ± 4.79 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 40.45 ± 0.01 | 406 ± 62 | 170 ± 25 | 226.12 ± 4.50 |
| [S II] 6718 | 40.12 ± 0.03 | 406 ± 62 | 170 ± 25 | 109.57 ± 4.30 |
| [S II] 6732 | 39.94 ± 0.04 | 406 ± 62 | 170 ± 25 | 73.30 ± 4.21 |
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 | 0.16 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.09 |
| Host frac | 0.91 |
| log L5100,Host | 43.11 |
| Fe II/Hβ | — |
| Fe II/[O III] | 0.51 |
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.