NGC 526
Observation
| Spectrum ID | 9343939_sp1 |
|---|---|
| Alt name | g0123544-350356 |
| z | 0.0189 |
| RA, Dec | 20.9766, -35.0654 |
| MJD | 60166.79 |
| SNR/Å B/R | 13.0/26.8 |
| Obs Airmass | 1.02 |
| SMSS ID | 9343939 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.8 ± 0.0 |
| 2MASS Kext | 10.4 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.022 |
| Power law αν | -1.73 ± 0.20 |
| log L5100,AGN | 42.07 ± 0.15 |
| log HβBr/[O III] | -1.52 ± 0.14 |
| log ML5100/M☉ | 6.22 ± 0.08 |
| log MHα/M☉ | 6.16 ± 0.07 |
| log MHβ/M☉ | 5.93 ± 0.10 |
| log M[O III]/M☉ | 6.75 ± 0.03 |
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 | 39.63 ± 0.08 | 258 ± 62 | 109 ± 25 | 16.79 ± 1.40 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.19 ± 0.17 | 248 ± 63 | 104 ± 25 | 6.53 ± 1.29 |
| He II Narrow | 39.40 ± 0.10 | 248 ± 63 | 104 ± 25 | 10.66 ± 1.10 |
| He II Broad | 39.19 ± 0.35 | 1370 ± 63 | 582 ± 25 | 6.59 ± 2.47 |
| Hβ Narrow | 40.09 ± 0.02 | 258 ± 62 | 109 ± 25 | 51.00 ± 1.19 |
| Hβ Broad | 39.67 ± 0.14 | 1181 ± 26 | 442 ± 25 | 18.23 ± 2.34 |
| [O III] 5007 | 41.18 ± 0.01 | 258 ± 62 | 109 ± 25 | 656.48 ± 1.87 |
| He I Narrow | 38.93 ± 0.18 | 248 ± 63 | 104 ± 25 | 3.88 ± 0.73 |
| He I Broad | 38.82 ± 0.44 | 1179 ± 63 | 500 ± 25 | 2.91 ± 1.69 |
| [O I] 6300 | 39.70 ± 0.03 | 248 ± 63 | 104 ± 25 | 23.33 ± 0.82 |
| Hα Narrow | 40.58 ± 0.01 | 248 ± 63 | 104 ± 25 | 178.58 ± 1.11 |
| Hα Broad | 40.73 ± 0.03 | 1637 ± 91 | 620 ± 33 | 242.87 ± 2.42 |
| [N II] 6585 | 40.47 ± 0.02 | 248 ± 63 | 104 ± 25 | 137.64 ± 1.03 |
| [S II] 6718 | 40.11 ± 0.01 | 248 ± 63 | 104 ± 25 | 60.17 ± 0.92 |
| [S II] 6732 | 40.01 ± 0.02 | 248 ± 63 | 104 ± 25 | 48.34 ± 0.91 |
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 | 9.82 |
|---|---|
| Hβ Broad SNR | 1.59 |
| Hγ Broad SNR | 0.90 |
| AGN frac | 0.14 |
| Host frac | 0.86 |
| log L5100,Host | 42.86 |
| Fe II/Hβ | 5.85 |
| Fe II/[O III] | 0.16 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
hb_width | 0 |
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.