LEDA 3093014
Observation
| Spectrum ID | 24774446_sp1 |
|---|---|
| Alt name | g0459071-073034 |
| z | 0.0487 |
| RA, Dec | 74.7797, -7.5095 |
| MJD | 60261.51 |
| SNR/Å B/R | 10.5/19.7 |
| Obs Airmass | 1.61 |
| SMSS ID | 24774446 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.5 ± 0.0 |
| 2MASS Kext | 12.6 ± 0.1 |
AGN Properties
| Spectrum Type | Bad |
|---|---|
| Quality Flag | bad_blue |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.050 |
| Power law αν | 0.49 ± 0.01 |
| log L5100,AGN | 42.59 ± 0.02 |
| 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 | 39.63 ± 0.24 | — | 326 ± 25 | 3.74 ± 1.66 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | 39.98 ± 0.20 | 1556 ± 62 | 661 ± 25 | 10.24 ± 3.27 |
| Hβ Narrow | 39.65 ± 0.26 | — | 326 ± 25 | 5.07 ± 1.56 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 39.81 ± 0.14 | — | 326 ± 25 | 8.16 ± 1.67 |
| He I Narrow | — | — | — | — |
| He I Broad | 39.40 ± 0.43 | 1556 ± 62 | 661 ± 25 | 4.68 ± 2.88 |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 40.31 ± 0.03 | 254 ± 62 | 107 ± 25 | 50.76 ± 2.04 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 40.10 ± 0.04 | 254 ± 62 | 107 ± 25 | 31.56 ± 1.83 |
| [S II] 6718 | 39.89 ± 0.06 | 254 ± 62 | 107 ± 25 | 20.17 ± 1.66 |
| [S II] 6732 | 39.57 ± 0.12 | 254 ± 62 | 107 ± 25 | 9.73 ± 1.68 |
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 | 0.23 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.14 |
| Host frac | 0.86 |
| log L5100,Host | 43.37 |
| Fe II/Hβ | — |
| Fe II/[O III] | 3.40 |
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.