6dFGS gJ150541.8-284952
Observation
| Spectrum ID | 113578097_sp1 |
|---|---|
| Alt name | g1505418-284952 |
| z | 0.0742 |
| RA, Dec | 226.4240, -28.8310 |
| MJD | 61114.7 |
| SNR/Å B/R | 9.5/16.8 |
| Obs Airmass | 1.02 |
| SMSS ID | 113578097 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.8 ± 0.0 |
| 2MASS Kext | 12.7 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.5+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.172 |
| Power law αν | -1.99 ± 0.01 |
| log L5100,AGN | 42.08 ± 0.55 |
| log HβBr/[O III] | <0.17 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.74 ± 0.05 |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | — | — | — | — |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.23 ± 0.12 | 394 ± 63 | 172 ± 26 | 70.92 ± 15.51 |
| Hβ Broad | <41.12 | — | — | — |
| [O III] 5007 | 40.96 ± 0.02 | 394 ± 63 | 172 ± 26 | 381.39 ± 16.82 |
| He I Narrow | — | — | — | — |
| He I Broad | — | — | — | — |
| [O I] 6300 | 40.10 ± 0.11 | 387 ± 62 | 164 ± 25 | 53.01 ± 8.44 |
| Hα Narrow | 40.79 ± 0.03 | 387 ± 62 | 164 ± 25 | 261.40 ± 9.71 |
| Hα Broad | 41.62 ± 0.02 | 5433 ± 267 | 2065 ± 25 | 1784.61 ± 41.76 |
| [N II] 6585 | 40.91 ± 0.02 | 387 ± 62 | 164 ± 25 | 349.14 ± 10.03 |
| [S II] 6718 | 40.53 ± 0.04 | 387 ± 62 | 164 ± 25 | 142.92 ± 10.23 |
| [S II] 6732 | 40.40 ± 0.06 | 387 ± 62 | 164 ± 25 | 106.38 ± 12.41 |
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 | 2.79 |
|---|---|
| Hβ Broad SNR | 0.52 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.02 |
| Host frac | 0.98 |
| log L5100,Host | 43.71 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 2 |
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.