LEDA 632834
Observation
| Spectrum ID | 17170606_sp1 |
|---|---|
| Alt name | g0329498-364609 |
| z | 0.0817 |
| RA, Dec | 52.4576, -36.7691 |
| MJD | 60255.6 |
| SNR/Å B/R | 16.7/30.4 |
| Obs Airmass | 1.02 |
| SMSS ID | 17170606 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.7 ± 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) | 0.011 |
| Power law αν | 0.38 ± 0.12 |
| log L5100,AGN | 43.09 ± 0.04 |
| log HβBr/[O III] | -0.21 ± 0.34 |
| log ML5100/M☉ | 7.42 ± 0.03 |
| log MHα/M☉ | 7.29 ± 0.02 |
| log MHβ/M☉ | 7.20 ± 0.17 |
| log M[O III]/M☉ | 7.43 ± 0.03 |
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 | 39.53 ± 0.37 | 404 ± 63 | 201 ± 36 | 0.95 ± 0.91 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.78 ± 0.24 | 401 ± 63 | 170 ± 25 | 1.73 ± 0.59 |
| He II Narrow | 39.40 ± 0.39 | 401 ± 63 | 170 ± 25 | 0.86 ± 0.55 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.41 ± 0.06 | 404 ± 63 | 202 ± 36 | 9.48 ± 1.05 |
| Hβ Broad | 40.82 +0.61−0.07 | 2832 ± 27 | 1038 ± 25 | 24.32 ± 1.71 |
| [O III] 5007 | 41.03 ± 0.02 | 404 ± 63 | 202 ± 36 | 41.86 ± 1.23 |
| He I Narrow | 39.50 ± 0.26 | 401 ± 63 | 170 ± 25 | 1.82 ± 0.67 |
| He I Broad | 40.49 ± 0.10 | 4356 ± 66 | 1850 ± 26 | 17.76 ± 2.15 |
| [O I] 6300 | 39.53 ± 0.19 | 401 ± 63 | 170 ± 25 | 2.30 ± 0.70 |
| Hα Narrow | 41.01 ± 0.01 | 401 ± 63 | 170 ± 25 | 76.37 ± 0.90 |
| Hα Broad | 41.68 ± 0.01 | 3104 ± 72 | 1310 ± 37 | 356.76 ± 3.70 |
| [N II] 6585 | 40.77 ± 0.02 | 401 ± 63 | 170 ± 25 | 44.46 ± 0.88 |
| [S II] 6718 | 40.27 ± 0.04 | 401 ± 63 | 170 ± 25 | 15.02 ± 1.20 |
| [S II] 6732 | 40.14 ± 0.08 | 401 ± 63 | 170 ± 25 | 10.99 ± 1.23 |
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 | 8.79 |
|---|---|
| Hβ Broad SNR | 1.97 |
| Hγ Broad SNR | 0.81 |
| AGN frac | 0.24 |
| Host frac | 0.76 |
| log L5100,Host | 43.59 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
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.