IC 4329A
Observation
| Spectrum ID | 101780207_sp1 |
|---|---|
| Alt name | g1349193-301834 |
| z | 0.0160 |
| RA, Dec | 207.3302, -30.3095 |
| MJD | 60375.76 |
| SNR/Å B/R | 15.5/33.0 |
| Obs Airmass | 1.05 |
| SMSS ID | 101780207 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 13.8 ± 0.1 |
| 2MASS Kext | 8.8 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.050 |
| Power law αν | -1.54 ± 0.24 |
| log L5100,AGN | 42.34 ± 0.04 |
| log HβBr/[O III] | 0.01 ± 0.01 |
| log ML5100/M☉ | 7.71 ± 0.04 |
| log MHα/M☉ | 8.19 ± 0.01 |
| log MHβ/M☉ | 7.97 ± 0.04 |
| log M[O III]/M☉ | 8.11 ± 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 | 39.52 ± 0.22 | 675 ± 63 | 339 ± 26 | 7.13 ± 1.99 |
| Hγ Broad | 40.36 ± 0.08 | 2916 ± 257 | 1074 ± 55 | 47.01 ± 3.21 |
| [O III] 4364 | 39.60 ± 0.15 | 652 ± 63 | 276 ± 25 | 8.53 ± 1.47 |
| He II Narrow | 39.22 ± 0.31 | 652 ± 63 | 276 ± 25 | 3.74 ± 1.31 |
| He II Broad | 39.40 ± 0.32 | 1378 ± 117 | 585 ± 49 | 5.08 ± 1.84 |
| Hβ Narrow | 40.23 ± 0.04 | 675 ± 63 | 340 ± 26 | 38.38 ± 1.94 |
| Hβ Broad | 41.17 ± 0.01 | 5723 ± 122 | 2126 ± 35 | 334.28 ± 4.11 |
| [O III] 5007 | 41.16 ± 0.01 | 675 ± 63 | 340 ± 26 | 333.84 ± 2.11 |
| He I Narrow | 39.25 ± 0.36 | 652 ± 63 | 276 ± 25 | 4.35 ± 1.12 |
| He I Broad | 40.08 ± 0.07 | 1181 ± 63 | 501 ± 25 | 29.50 ± 1.60 |
| [O I] 6300 | 40.11 ± 0.03 | 652 ± 63 | 276 ± 25 | 32.92 ± 1.24 |
| Hα Narrow | 41.18 ± 0.01 | 652 ± 63 | 276 ± 25 | 393.75 ± 2.16 |
| Hα Broad | 42.14 ± 0.01 | 6340 ± 65 | 2169 ± 25 | 3582.60 ± 4.78 |
| [N II] 6585 | 40.84 ± 0.01 | 652 ± 63 | 276 ± 25 | 180.99 ± 2.13 |
| [S II] 6718 | 40.40 ± 0.02 | 652 ± 63 | 276 ± 25 | 66.60 ± 1.42 |
| [S II] 6732 | 40.43 ± 0.01 | 652 ± 63 | 276 ± 25 | 70.14 ± 1.42 |
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 | 46.94 |
|---|---|
| Hβ Broad SNR | 7.49 |
| Hγ Broad SNR | 2.56 |
| AGN frac | 0.15 |
| Host frac | 0.85 |
| log L5100,Host | 43.10 |
| Fe II/Hβ | 0.34 |
| Fe II/[O III] | 0.35 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 0 |
balmer_width | 1 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.