ESO 327-25
Observation
| Spectrum ID | 308543986_sp3 |
|---|---|
| Alt name | g1452310-422625 |
| z | 0.0498 |
| RA, Dec | 223.1292, -42.4402 |
| MJD | 59725.51 |
| SNR/Å B/R | 17.3/40.9 |
| Obs Airmass | 1.03 |
| SMSS ID | 308543986 |
| Closest SMSS | 9.99'', 308543989 |
| SMSS Mean r6"ap | 15.6 ± 0.0 |
| 2MASS Kext | 10.9 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 1.2 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.101 |
| Power law αν | -1.37 ± 0.19 |
| log L5100,AGN | 43.47 ± 0.04 |
| log HβBr/[O III] | 0.37 ± 0.03 |
| log ML5100/M☉ | 7.50 ± 0.25 |
| log MHα/M☉ | 7.26 ± 0.03 |
| log MHβ/M☉ | 7.46 ± 0.25 |
| log M[O III]/M☉ | 7.43 ± 0.25 |
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 | 40.02 ± 0.29 | 535 ± 63 | 256 ± 36 | 1.63 ± 0.83 |
| Hγ Broad | 40.47 ± 0.16 | 1227 ± 66 | 431 ± 25 | 3.95 ± 0.89 |
| [O III] 4364 | 39.60 ± 0.43 | 526 ± 63 | 223 ± 25 | 0.63 ± 0.57 |
| He II Narrow | 39.51 ± 0.48 | 526 ± 63 | 223 ± 25 | 0.53 ± 0.48 |
| He II Broad | 39.91 ± 0.39 | 1479 ± 64 | 628 ± 25 | 1.32 ± 0.82 |
| Hβ Narrow | 40.52 ± 0.14 | 535 ± 63 | 257 ± 36 | 5.48 ± 0.74 |
| Hβ Broad | 41.57 ± 0.02 | 2588 ± 691 | 1847 ± 55 | 62.19 ± 1.69 |
| [O III] 5007 | 41.20 ± 0.02 | 535 ± 63 | 257 ± 36 | 26.67 ± 0.78 |
| He I Narrow | 40.09 ± 0.10 | 526 ± 63 | 223 ± 25 | 2.34 ± 0.31 |
| He I Broad | 40.87 ± 0.07 | 5785 ± 64 | 2456 ± 26 | 14.06 ± 1.03 |
| [O I] 6300 | 39.44 ± 0.34 | 526 ± 63 | 223 ± 25 | 0.54 ± 0.30 |
| Hα Narrow | 41.17 ± 0.02 | 526 ± 63 | 223 ± 25 | 30.14 ± 0.47 |
| Hα Broad | 42.26 ± 0.01 | 1989 ± 66 | 1221 ± 25 | 366.30 ± 1.14 |
| [N II] 6585 | 41.22 ± 0.01 | 526 ± 63 | 223 ± 25 | 33.86 ± 0.43 |
| [S II] 6718 | 40.63 ± 0.03 | 526 ± 63 | 223 ± 25 | 8.86 ± 0.35 |
| [S II] 6732 | 40.48 ± 0.04 | 526 ± 63 | 223 ± 25 | 6.18 ± 0.35 |
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 | 28.08 |
|---|---|
| Hβ Broad SNR | 5.55 |
| Hγ Broad SNR | 1.48 |
| AGN frac | 0.34 |
| Host frac | 0.66 |
| log L5100,Host | 43.75 |
| Fe II/Hβ | 1.64 |
| Fe II/[O III] | 3.91 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 1 |
balmer | 0 |
balmer_snr | 1 |
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.