LEDA 73264
Observation
| Spectrum ID | 503920932_sp3 |
|---|---|
| Alt name | g0008461-464911 |
| z | 0.0700 |
| RA, Dec | 2.1920, -46.8196 |
| MJD | 60473.8 |
| SNR/Å B/R | 6.7/16.2 |
| Obs Airmass | 1.09 |
| SMSS ID | 503920932 |
| Closest SMSS | 7.51'', 503920933 |
| SMSS Mean r6"ap | 16.8 ± 0.1 |
| 2MASS Kext | 13.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.015 |
| Power law αν | -1.34 ± 0.29 |
| log L5100,AGN | 41.25 ± 0.64 |
| log HβBr/[O III] | -0.14 ± 0.11 |
| log ML5100/M☉ | 6.87 ± 0.32 |
| log MHα/M☉ | 7.66 ± 0.02 |
| log MHβ/M☉ | 7.36 ± 0.16 |
| log M[O III]/M☉ | 7.54 ± 0.15 |
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 | 39.68 ± 0.32 | 442 ± 63 | 203 ± 30 | 120.47 ± 69.87 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.33 ± 0.43 | 437 ± 62 | 184 ± 25 | 55.60 ± 48.12 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.18 ± 0.11 | 442 ± 63 | 203 ± 30 | 412.41 ± 66.36 |
| Hβ Broad | 40.61 ± 0.11 | 3767 ± 619 | 1554 ± 52 | 1085.21 ± 148.24 |
| [O III] 5007 | 40.74 ± 0.03 | 442 ± 63 | 203 ± 30 | 1565.61 ± 72.42 |
| He I Narrow | — | — | — | — |
| He I Broad | 39.91 ± 0.21 | 1384 ± 62 | 587 ± 25 | 255.72 ± 64.18 |
| [O I] 6300 | 40.20 ± 0.04 | 437 ± 62 | 184 ± 25 | 529.11 ± 30.09 |
| Hα Narrow | 40.76 ± 0.02 | 437 ± 62 | 184 ± 25 | 1978.80 ± 34.99 |
| Hα Broad | 41.70 ± 0.01 | 4669 ± 86 | 2260 ± 45 | 17195.50 ± 176.66 |
| [N II] 6585 | 40.50 ± 0.03 | 437 ± 62 | 184 ± 25 | 1091.64 ± 34.11 |
| [S II] 6718 | 40.38 ± 0.04 | 437 ± 62 | 184 ± 25 | 841.18 ± 39.82 |
| [S II] 6732 | 40.30 ± 0.04 | 437 ± 62 | 184 ± 25 | 693.08 ± 38.05 |
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 | 6.46 |
|---|---|
| Hβ Broad SNR | 1.03 |
| Hγ Broad SNR | 0.56 |
| AGN frac | 0.01 |
| Host frac | 0.99 |
| log L5100,Host | 43.31 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
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.