LEDA 3098145
Observation
| Spectrum ID | 307031075_sp2 |
|---|---|
| Alt name | g1514487-402153 |
| z | 0.0238 |
| RA, Dec | 228.7029, -40.3648 |
| MJD | 59346.71 |
| SNR/Å B/R | 10.0/23.3 |
| Obs Airmass | 1.27 |
| SMSS ID | 307031075 |
| Closest SMSS | 13.77'', 307031145 |
| SMSS Mean r6"ap | 14.9 ± 0.0 |
| 2MASS Kext | 10.8 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.094 |
| Power law αν | -1.07 ± 0.05 |
| log L5100,AGN | 43.30 ± 0.01 |
| log HβBr/[O III] | 0.34 ± 0.07 |
| log ML5100/M☉ | 8.22 ± 0.33 |
| log MHα/M☉ | 7.06 ± 0.07 |
| log MHβ/M☉ | 7.97 ± 0.34 |
| log M[O III]/M☉ | 7.93 ± 0.33 |
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 | — | — | — | — |
| Hβ Narrow | — | — | — | — |
| Hβ Broad | 40.92 ± 0.06 | 6456 ± 2769 | 3652 ± 75 | 20.43 ± 1.45 |
| [O III] 5007 | 40.58 ± 0.03 | 374 ± 63 | 255 ± 31 | 9.61 ± 0.38 |
| He I Narrow | 39.15 ± 0.33 | 356 ± 62 | 150 ± 25 | 0.41 ± 0.15 |
| He I Broad | 39.82 ± 0.15 | 1178 ± 62 | 500 ± 25 | 1.91 ± 0.29 |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 39.95 ± 0.05 | 356 ± 62 | 150 ± 25 | 2.89 ± 0.19 |
| Hα Broad | 41.21 ± 0.01 | 3300 ± 225 | 1677 ± 25 | 52.49 ± 0.71 |
| [N II] 6585 | 40.27 ± 0.02 | 356 ± 62 | 150 ± 25 | 6.01 ± 0.19 |
| [S II] 6718 | — | — | — | — |
| [S II] 6732 | 38.94 ± 0.41 | 356 ± 62 | 150 ± 25 | 0.29 ± 0.19 |
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 | 4.03 |
|---|---|
| Hβ Broad SNR | 1.46 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.87 |
| Host frac | 0.13 |
| log L5100,Host | 42.48 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 1 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.