[VV2006] J045850.6-190604
Observation
| Spectrum ID | 22956317_sp1 |
|---|---|
| Alt name | J045850.6-190604 |
| z | 0.0627 |
| RA, Dec | 74.7108, -19.1012 |
| MJD | 60950.75 |
| SNR/Å B/R | 11.3/25.5 |
| Obs Airmass | 1.03 |
| SMSS ID | 22956317 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 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) | 0.037 |
| Power law αν | -1.96 ± 0.04 |
| log L5100,AGN | 41.50 ± 0.56 |
| log HβBr/[O III] | <0.02 |
| log ML5100/M☉ | — |
| log MHα/M☉ | 7.61 ± 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 | 39.59 ± 0.35 | 395 ± 71 | 215 ± 26 | 62.89 ± 33.78 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | — | — | — | — |
| Hβ Broad | <40.57 | — | — | — |
| [O III] 5007 | 40.55 ± 0.04 | 395 ± 71 | 215 ± 26 | 581.45 ± 30.35 |
| He I Narrow | — | — | — | — |
| He I Broad | 39.92 ± 0.21 | 2502 ± 62 | 1062 ± 25 | 135.26 ± 35.13 |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 40.06 ± 0.06 | 302 ± 62 | 128 ± 25 | 188.37 ± 12.42 |
| Hα Broad | 41.29 ± 0.02 | 5875 ± 254 | 2526 ± 57 | 3172.13 ± 68.86 |
| [N II] 6585 | 40.17 ± 0.04 | 302 ± 62 | 128 ± 25 | 242.88 ± 12.41 |
| [S II] 6718 | 39.80 ± 0.09 | 302 ± 62 | 128 ± 25 | 103.82 ± 13.05 |
| [S II] 6732 | 39.37 ± 0.22 | 302 ± 62 | 128 ± 25 | 38.55 ± 12.30 |
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 | 2.25 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.01 |
| Host frac | 0.99 |
| log L5100,Host | 43.48 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/2 |
|---|---|
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.