LEDA 1095123
Observation
| Spectrum ID | 7738739_sp1 |
|---|---|
| Alt name | g2258019-021945 |
| z | 0.0801 |
| RA, Dec | 344.5079, -2.3291 |
| MJD | 60176.6 |
| SNR/Å B/R | 13.3/23.3 |
| Obs Airmass | 1.17 |
| SMSS ID | 7738739 |
| Closest SMSS | 5.58'', 2012959744 |
| SMSS Mean r6"ap | 16.4 ± 0.1 |
| 2MASS Kext | 12.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.061 |
| Power law αν | -1.96 ± 0.04 |
| log L5100,AGN | 43.13 ± 0.05 |
| log HβBr/[O III] | 0.19 ± 0.03 |
| log ML5100/M☉ | 7.65 ± 0.07 |
| log MHα/M☉ | 7.23 ± 0.03 |
| log MHβ/M☉ | 7.74 ± 0.07 |
| log M[O III]/M☉ | 7.80 ± 0.06 |
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 | 39.79 ± 0.30 | 380 ± 63 | 225 ± 26 | 2.31 ± 0.96 |
| Hγ Broad | 40.67 ± 0.11 | 2101 ± 505 | 911 ± 95 | 17.31 ± 2.14 |
| [O III] 4364 | 39.67 ± 0.26 | 307 ± 63 | 128 ± 25 | 1.76 ± 0.66 |
| He II Narrow | 39.41 ± 0.38 | 307 ± 63 | 128 ± 25 | 0.98 ± 0.60 |
| He II Broad | 39.98 ± 0.27 | 1261 ± 69 | 535 ± 28 | 3.55 ± 1.22 |
| Hβ Narrow | 40.33 ± 0.09 | 380 ± 63 | 225 ± 26 | 8.01 ± 0.90 |
| Hβ Broad | 41.52 ± 0.03 | 3641 ± 260 | 4431 ± 118 | 126.72 ± 4.83 |
| [O III] 5007 | 41.33 ± 0.01 | 380 ± 63 | 225 ± 26 | 81.75 ± 1.11 |
| He I Narrow | — | — | — | — |
| He I Broad | 40.40 ± 0.08 | 1722 ± 68 | 731 ± 27 | 9.54 ± 1.20 |
| [O I] 6300 | 39.65 ± 0.16 | 307 ± 63 | 128 ± 25 | 1.72 ± 0.40 |
| Hα Narrow | 40.72 ± 0.03 | 307 ± 63 | 128 ± 25 | 20.27 ± 0.55 |
| Hα Broad | 41.92 ± 0.01 | 2421 ± 84 | 1092 ± 25 | 323.36 ± 1.71 |
| [N II] 6585 | 40.70 ± 0.02 | 307 ± 63 | 128 ± 25 | 19.24 ± 0.48 |
| [S II] 6718 | 40.16 ± 0.07 | 307 ± 63 | 128 ± 25 | 5.54 ± 0.61 |
| [S II] 6732 | 40.17 ± 0.06 | 307 ± 63 | 128 ± 25 | 5.74 ± 0.57 |
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 | 17.36 |
|---|---|
| Hβ Broad SNR | 3.58 |
| Hγ Broad SNR | 1.78 |
| AGN frac | 0.29 |
| Host frac | 0.71 |
| log L5100,Host | 43.52 |
| Fe II/Hβ | 0.21 |
| Fe II/[O III] | 0.33 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 2 |
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.