IC 3834
Observation
| Spectrum ID | 104764983_sp1 |
|---|---|
| Alt name | g1251324-141316 |
| z | 0.0141 |
| RA, Dec | 192.8849, -14.2212 |
| MJD | 59016.39 |
| SNR/Å B/R | 27.1/52.5 |
| Obs Airmass | 1.05 |
| SMSS ID | 104764983 |
| Closest SMSS | 7.72'', 2170537380 |
| SMSS Mean r6"ap | nan ± nan |
| 2MASS Kext | 10.3 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.047 |
| Power law αν | 0.22 ± 0.18 |
| log L5100,AGN | 42.35 ± 0.03 |
| log HβBr/[O III] | -0.26 ± 0.03 |
| log ML5100/M☉ | 7.24 ± 0.05 |
| log MHα/M☉ | 6.78 ± 0.05 |
| log MHβ/M☉ | 7.03 ± 0.07 |
| log M[O III]/M☉ | 7.25 ± 0.06 |
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 | 38.91 ± 0.14 | 239 ± 62 | 119 ± 25 | 1.31 ± 0.25 |
| Hγ Broad | 39.50 ± 0.14 | 2846 ± 608 | 1201 ± 63 | 4.84 ± 0.84 |
| [O III] 4364 | 38.95 ± 0.12 | 236 ± 62 | 99 ± 25 | 1.46 ± 0.23 |
| He II Narrow | 39.01 ± 0.09 | 236 ± 62 | 99 ± 25 | 1.96 ± 0.21 |
| He II Broad | 39.23 ± 0.13 | 1180 ± 63 | 501 ± 25 | 3.19 ± 0.46 |
| Hβ Narrow | 39.51 ± 0.03 | 239 ± 62 | 119 ± 25 | 6.66 ± 0.25 |
| Hβ Broad | 40.10 ± 0.03 | 3348 ± 102 | 1260 ± 28 | 25.76 ± 0.85 |
| [O III] 5007 | 40.37 ± 0.01 | 239 ± 62 | 119 ± 25 | 51.16 ± 0.28 |
| He I Narrow | 38.75 ± 0.09 | 236 ± 62 | 99 ± 25 | 1.77 ± 0.21 |
| He I Broad | 39.96 ± 0.04 | 7374 ± 69 | 3131 ± 28 | 28.76 ± 1.31 |
| [O I] 6300 | 39.16 ± 0.03 | 236 ± 62 | 99 ± 25 | 5.35 ± 0.24 |
| Hα Narrow | 40.16 ± 0.01 | 236 ± 62 | 99 ± 25 | 57.98 ± 0.32 |
| Hα Broad | 40.88 ± 0.01 | 3010 ± 64 | 1383 ± 25 | 309.28 ± 1.48 |
| [N II] 6585 | 40.13 ± 0.01 | 236 ± 62 | 99 ± 25 | 54.88 ± 0.31 |
| [S II] 6718 | 39.63 ± 0.01 | 236 ± 62 | 99 ± 25 | 18.15 ± 0.30 |
| [S II] 6732 | 39.56 ± 0.02 | 236 ± 62 | 99 ± 25 | 15.33 ± 0.32 |
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 | 16.43 |
|---|---|
| Hβ Broad SNR | 3.72 |
| Hγ Broad SNR | 1.21 |
| AGN frac | 0.28 |
| Host frac | 0.72 |
| log L5100,Host | 42.75 |
| Fe II/Hβ | 0.32 |
| Fe II/[O III] | 0.17 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
hb_width | 0 |
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.