6dFGS gJ161732.0-085222
Observation
| Spectrum ID | 192448947_sp1 |
|---|---|
| Alt name | g1617320-085222 |
| z | 0.0774 |
| RA, Dec | 244.3833, -8.8726 |
| MJD | 60902.42 |
| SNR/Å B/R | 5.5/9.4 |
| Obs Airmass | 1.14 |
| SMSS ID | 192448947 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.8 ± 0.2 |
| 2MASS Kext | 12.7 ± 0.2 |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.218 |
| Power law αν | -1.88 ± 0.13 |
| log L5100,AGN | 42.51 ± 0.17 |
| log HβBr/[O III] | -0.04 ± 0.05 |
| log ML5100/M☉ | 6.81 ± 0.11 |
| log MHα/M☉ | 6.77 ± 0.04 |
| log MHβ/M☉ | 6.97 ± 0.09 |
| log M[O III]/M☉ | 7.13 ± 0.08 |
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 | 39.59 ± 0.40 | 265 ± 63 | 175 ± 27 | 6.09 ± 6.07 |
| Hγ Broad | 40.59 ± 0.13 | 1845 ± 238 | 621 ± 39 | 57.98 ± 9.53 |
| [O III] 4364 | — | — | — | — |
| He II Narrow | — | — | — | — |
| He II Broad | 40.95 ± 0.13 | 12848 ± 64 | 5456 ± 26 | 141.75 ± 23.06 |
| Hβ Narrow | 40.17 ± 0.14 | 265 ± 63 | 176 ± 27 | 23.74 ± 5.14 |
| Hβ Broad | 41.10 ± 0.05 | 1873 ± 166 | 1078 ± 55 | 202.74 ± 13.28 |
| [O III] 5007 | 41.15 ± 0.02 | 265 ± 63 | 176 ± 27 | 224.76 ± 5.22 |
| He I Narrow | 39.42 ± 0.38 | 245 ± 63 | 101 ± 25 | 4.31 ± 2.40 |
| He I Broad | 40.21 ± 0.16 | 1179 ± 62 | 500 ± 25 | 26.74 ± 6.98 |
| [O I] 6300 | 39.34 ± 0.34 | 245 ± 63 | 101 ± 25 | 3.62 ± 2.03 |
| Hα Narrow | 40.71 ± 0.03 | 245 ± 63 | 101 ± 25 | 85.03 ± 2.55 |
| Hα Broad | 41.45 ± 0.01 | 2001 ± 71 | 652 ± 25 | 464.07 ± 6.06 |
| [N II] 6585 | 40.53 ± 0.03 | 245 ± 63 | 101 ± 25 | 56.23 ± 2.41 |
| [S II] 6718 | 40.18 ± 0.08 | 245 ± 63 | 101 ± 25 | 25.04 ± 3.77 |
| [S II] 6732 | 40.00 ± 0.12 | 245 ± 63 | 101 ± 25 | 16.81 ± 3.60 |
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 | 6.09 |
|---|---|
| Hβ Broad SNR | 2.71 |
| Hγ Broad SNR | 1.31 |
| AGN frac | 0.13 |
| Host frac | 0.87 |
| log L5100,Host | 43.35 |
| Fe II/Hβ | 0.24 |
| Fe II/[O III] | 0.21 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 1 |
hb_width | 1 |
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.