ESO 149-28
Observation
| Spectrum ID | 503262872_sp1 |
|---|---|
| Alt name | g0018046-544908 |
| z | 0.0691 |
| RA, Dec | 4.5194, -54.8188 |
| MJD | 60165.72 |
| SNR/Å B/R | 14.3/26.9 |
| Obs Airmass | 1.09 |
| SMSS ID | 503262872 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.3 ± 0.0 |
| 2MASS Kext | 11.2 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8+ |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.013 |
| Power law αν | -0.02 ± 0.24 |
| log L5100,AGN | 43.03 ± 0.04 |
| log HβBr/[O III] | <-1.06 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.88 ± 0.03 |
| 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 | 39.59 ± 0.36 | 508 ± 64 | 337 ± 25 | 1.34 ± 0.74 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | 39.67 ± 0.21 | 361 ± 63 | 152 ± 25 | 1.87 ± 0.53 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.56 ± 0.04 | 508 ± 64 | 337 ± 25 | 15.73 ± 0.85 |
| Hβ Broad | <40.38 | — | — | — |
| [O III] 5007 | 41.44 ± 0.01 | 508 ± 64 | 337 ± 25 | 123.90 ± 1.03 |
| He I Narrow | 39.03 ± 0.43 | 361 ± 63 | 152 ± 25 | 0.67 ± 0.49 |
| He I Broad | 39.78 ± 0.26 | 2161 ± 63 | 918 ± 25 | 3.76 ± 1.25 |
| [O I] 6300 | 40.16 ± 0.04 | 361 ± 63 | 152 ± 25 | 10.28 ± 0.58 |
| Hα Narrow | 41.07 ± 0.01 | 361 ± 63 | 152 ± 25 | 90.68 ± 0.78 |
| Hα Broad | 41.48 ± 0.01 | 2225 ± 66 | 986 ± 52 | 233.20 ± 3.26 |
| [N II] 6585 | 41.11 ± 0.01 | 361 ± 63 | 152 ± 25 | 101.22 ± 0.77 |
| [S II] 6718 | 40.60 ± 0.02 | 361 ± 63 | 152 ± 25 | 32.38 ± 0.76 |
| [S II] 6732 | 40.51 ± 0.02 | 361 ± 63 | 152 ± 25 | 26.12 ± 0.73 |
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 | 9.28 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.31 |
| Host frac | 0.69 |
| log L5100,Host | 43.39 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
l5100 | 1 |
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.