2MASS J12570643-4435201
Observation
| Spectrum ID | 319052134_sp1 |
|---|---|
| Alt name | g1257064-443520 |
| z | 0.0965 |
| RA, Dec | 194.2768, -44.5889 |
| MJD | 60403.59 |
| SNR/Å B/R | 1.9/1.4 |
| Obs Airmass | 1.03 |
| SMSS ID | 319052134 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.0 ± 0.0 |
| 2MASS Kext | 12.3 ± 0.1 |
AGN Properties
| Spectrum Type | Bad |
|---|---|
| Quality Flag | bad_all |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.075 |
| Power law αν | 0.47 ± 0.02 |
| log L5100,AGN | 42.90 ± 0.01 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | 6.10 ± 0.08 |
| 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 | 39.80 ± 0.20 | 280 ± 62 | 118 ± 25 | 2.75 ± 0.82 |
| He II Narrow | — | — | — | — |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.82 ± 0.35 | — | 344 ± 25 | 3.95 ± 1.40 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 40.06 ± 0.19 | — | 344 ± 25 | 7.11 ± 1.70 |
| He I Narrow | — | — | — | — |
| He I Broad | — | — | — | — |
| [O I] 6300 | — | — | — | — |
| Hα Narrow | 40.26 ± 0.11 | 280 ± 62 | 118 ± 25 | 22.28 ± 2.69 |
| Hα Broad | 40.79 ± 0.08 | 1461 ± 78 | 537 ± 25 | 74.03 ± 6.29 |
| [N II] 6585 | 39.73 ± 0.26 | 280 ± 62 | 118 ± 25 | 6.55 ± 2.29 |
| [S II] 6718 | — | — | — | — |
| [S II] 6732 | 39.57 ± 0.33 | 280 ± 62 | 118 ± 25 | 4.84 ± 2.87 |
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 | 1.92 |
|---|---|
| Hβ Broad SNR | 0.38 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.92 |
| Host frac | 0.08 |
| log L5100,Host | 41.81 |
| Fe II/Hβ | — |
| Fe II/[O III] | 3.99 |
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.