LEDA 3095700
Observation
| Spectrum ID | 25156608_sp1 |
|---|---|
| Alt name | g0447390-040330 |
| z | 0.0819 |
| RA, Dec | 71.9124, -4.0583 |
| MJD | 60912.79 |
| SNR/Å B/R | 11.4/19.0 |
| Obs Airmass | 1.22 |
| SMSS ID | 25156608 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 15.5 ± 0.0 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.035 |
| Power law αν | -0.92 ± 0.05 |
| log L5100,AGN | 44.00 ± 0.01 |
| log HβBr/[O III] | 0.82 ± 0.06 |
| log ML5100/M☉ | 7.33 ± 0.03 |
| log MHα/M☉ | 6.97 ± 0.04 |
| log MHβ/M☉ | 7.19 ± 0.04 |
| log M[O III]/M☉ | 6.95 ± 0.05 |
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 | 40.33 ± 0.30 | 231 ± 64 | 144 ± 27 | 0.90 ± 0.32 |
| Hγ Broad | 41.45 ± 0.09 | 1972 ± 609 | 1191 ± 112 | 11.89 ± 1.26 |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | 40.39 ± 0.36 | 1466 ± 63 | 622 ± 25 | 1.12 ± 0.66 |
| Hβ Narrow | 40.79 ± 0.11 | 231 ± 64 | 144 ± 27 | 2.98 ± 0.33 |
| Hβ Broad | 41.85 ± 0.03 | 1636 ± 63 | 791 ± 39 | 34.03 ± 1.12 |
| [O III] 5007 | 41.03 ± 0.05 | 231 ± 64 | 144 ± 27 | 5.31 ± 0.34 |
| He I Narrow | — | — | — | — |
| He I Broad | 41.06 ± 0.08 | 2981 ± 65 | 1266 ± 26 | 6.72 ± 0.79 |
| [O I] 6300 | 39.76 ± 0.35 | 220 ± 63 | 90 ± 25 | 0.36 ± 0.19 |
| Hα Narrow | 41.08 ± 0.03 | 220 ± 63 | 90 ± 25 | 8.07 ± 0.28 |
| Hα Broad | 42.32 ± 0.01 | 1369 ± 64 | 636 ± 25 | 137.52 ± 0.84 |
| [N II] 6585 | 40.84 ± 0.04 | 220 ± 63 | 90 ± 25 | 4.62 ± 0.24 |
| [S II] 6718 | 40.17 ± 0.16 | 220 ± 63 | 90 ± 25 | 1.01 ± 0.23 |
| [S II] 6732 | 40.04 ± 0.21 | 220 ± 63 | 90 ± 25 | 0.76 ± 0.28 |
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 | 19.00 |
|---|---|
| Hβ Broad SNR | 7.00 |
| Hγ Broad SNR | 2.37 |
| AGN frac | 0.63 |
| Host frac | 0.37 |
| log L5100,Host | 43.76 |
| Fe II/Hβ | 1.27 |
| Fe II/[O III] | 8.38 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
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.