2MASS J05053990-7912013
Observation
| Spectrum ID | 490877201_sp1 |
|---|---|
| Alt name | 4624111912867529344 |
| z | 0.0827 |
| RA, Dec | 76.4164, -79.2003 |
| MJD | 59969.55 |
| SNR/Å B/R | 14.0/20.8 |
| Obs Airmass | 1.57 |
| SMSS ID | 490877201 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 16.4 ± 0.0 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.0 |
|---|---|
| Quality Flag | good |
| AGN reference | AllBRICQS2 |
| MW E(B−V) | 0.124 |
| Power law αν | -0.09 ± 0.11 |
| log L5100,AGN | 43.75 ± 0.01 |
| log HβBr/[O III] | 0.73 ± 0.01 |
| log ML5100/M☉ | 7.76 ± 0.02 |
| log MHα/M☉ | 7.39 ± 0.04 |
| log MHβ/M☉ | 7.91 ± 0.02 |
| log M[O III]/M☉ | 7.73 ± 0.02 |
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 | 40.66 ± 0.09 | 408 ± 63 | 223 ± 26 | 2.99 ± 0.29 |
| Hγ Broad | 41.61 ± 0.02 | 2850 ± 239 | 1070 ± 46 | 27.16 ± 0.74 |
| [O III] 4364 | 40.37 ± 0.12 | 364 ± 63 | 154 ± 25 | 1.56 ± 0.25 |
| He II Narrow | 40.35 ± 0.10 | 364 ± 63 | 154 ± 25 | 1.73 ± 0.24 |
| He II Broad | 41.46 ± 0.04 | 5683 ± 380 | 2413 ± 161 | 21.94 ± 1.00 |
| Hβ Narrow | 41.12 ± 0.03 | 408 ± 63 | 223 ± 26 | 10.71 ± 0.32 |
| Hβ Broad | 42.27 ± 0.01 | 3010 ± 70 | 2648 ± 88 | 152.01 ± 1.80 |
| [O III] 5007 | 41.53 ± 0.01 | 408 ± 63 | 223 ± 26 | 29.66 ± 0.37 |
| He I Narrow | 40.20 ± 0.09 | 364 ± 63 | 154 ± 25 | 1.86 ± 0.23 |
| He I Broad | 41.27 ± 0.02 | 3529 ± 173 | 1498 ± 73 | 22.31 ± 0.68 |
| [O I] 6300 | 39.51 ± 0.27 | 364 ± 63 | 154 ± 25 | 0.43 ± 0.24 |
| Hα Narrow | 41.39 ± 0.02 | 364 ± 63 | 154 ± 25 | 36.06 ± 0.37 |
| Hα Broad | 42.60 ± 0.01 | 1808 ± 65 | 969 ± 25 | 580.18 ± 1.01 |
| [N II] 6585 | 40.62 ± 0.04 | 364 ± 63 | 154 ± 25 | 6.18 ± 0.32 |
| [S II] 6718 | 40.27 ± 0.08 | 364 ± 63 | 154 ± 25 | 2.84 ± 0.40 |
| [S II] 6732 | 40.28 ± 0.07 | 364 ± 63 | 154 ± 25 | 2.92 ± 0.41 |
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 | 60.08 |
|---|---|
| Hβ Broad SNR | 18.53 |
| Hγ Broad SNR | 7.61 |
| AGN frac | 0.82 |
| Host frac | 0.18 |
| log L5100,Host | 43.09 |
| Fe II/Hβ | 0.43 |
| Fe II/[O III] | 2.32 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.