LEDA 608595
Observation
| Spectrum ID | 1709145_sp1 |
|---|---|
| Alt name | g2243086-382827 |
| z | 0.0668 |
| RA, Dec | 340.7858, -38.4742 |
| MJD | 60176.56 |
| SNR/Å B/R | 18.0/30.9 |
| Obs Airmass | 1.06 |
| SMSS ID | 1709145 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.6 ± 0.1 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.011 |
| Power law αν | 0.41 ± 0.09 |
| log L5100,AGN | 42.98 ± 0.04 |
| log HβBr/[O III] | -0.01 ± 0.07 |
| log ML5100/M☉ | 7.05 ± 0.25 |
| log MHα/M☉ | 7.00 ± 0.04 |
| log MHβ/M☉ | 6.87 ± 0.26 |
| log M[O III]/M☉ | 7.00 ± 0.25 |
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 | 39.92 ± 0.16 | 398 ± 63 | 343 ± 37 | 2.95 ± 0.77 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.34 ± 0.31 | 371 ± 63 | 157 ± 25 | 0.80 ± 0.40 |
| He II Narrow | 39.14 ± 0.42 | 371 ± 63 | 157 ± 25 | 0.60 ± 0.43 |
| He II Broad | 39.46 ± 0.39 | 1179 ± 62 | 501 ± 25 | 1.25 ± 0.76 |
| Hβ Narrow | 40.51 ± 0.04 | 398 ± 63 | 343 ± 37 | 15.29 ± 0.96 |
| Hβ Broad | 40.80 ± 0.07 | 1950 ± 533 | 2616 ± 99 | 29.68 ± 2.30 |
| [O III] 5007 | 40.81 ± 0.02 | 398 ± 63 | 343 ± 37 | 32.54 ± 1.05 |
| He I Narrow | 39.43 ± 0.20 | 371 ± 63 | 157 ± 25 | 2.00 ± 0.54 |
| He I Broad | 40.80 ± 0.05 | 8668 ± 65 | 3681 ± 26 | 47.17 ± 2.77 |
| [O I] 6300 | 39.72 ± 0.09 | 371 ± 63 | 157 ± 25 | 4.60 ± 0.61 |
| Hα Narrow | 41.09 ± 0.01 | 371 ± 63 | 157 ± 25 | 120.68 ± 0.86 |
| Hα Broad | 41.40 ± 0.01 | 2693 ± 90 | 1517 ± 36 | 242.56 ± 3.22 |
| [N II] 6585 | 40.93 ± 0.01 | 371 ± 63 | 157 ± 25 | 83.36 ± 0.82 |
| [S II] 6718 | 40.33 ± 0.03 | 371 ± 63 | 157 ± 25 | 21.89 ± 0.79 |
| [S II] 6732 | 40.23 ± 0.03 | 371 ± 63 | 157 ± 25 | 17.50 ± 0.82 |
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 | 7.06 |
|---|---|
| Hβ Broad SNR | 1.93 |
| Hγ Broad SNR | 0.72 |
| AGN frac | 0.26 |
| Host frac | 0.74 |
| log L5100,Host | 43.43 |
| Fe II/Hβ | 1.45 |
| Fe II/[O III] | 1.42 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
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.