NGC 6860
Observation
| Spectrum ID | 485673774_sp6 |
|---|---|
| Alt name | g2008469-610560 |
| z | 0.0146 |
| RA, Dec | 302.1954, -61.0999 |
| MJD | 60413.79 |
| SNR/Å B/R | 24.7/41.9 |
| Obs Airmass | 1.22 |
| SMSS ID | 485673774 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 14.3 ± 0.1 |
| 2MASS Kext | 9.4 ± 0.0 |
AGN Properties
| Spectrum Type | Sy 1.8 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.036 |
| Power law αν | -1.97 ± 0.03 |
| log L5100,AGN | 42.09 ± 0.08 |
| log HβBr/[O III] | -0.74 ± 0.04 |
| log ML5100/M☉ | 6.79 ± 0.28 |
| log MHα/M☉ | 6.80 ± 0.04 |
| log MHβ/M☉ | 6.70 ± 0.28 |
| log M[O III]/M☉ | 7.16 ± 0.28 |
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 | 39.36 ± 0.09 | 375 ± 62 | 221 ± 25 | 9.65 ± 1.81 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 38.59 ± 0.35 | 354 ± 62 | 150 ± 25 | 1.62 ± 0.90 |
| He II Narrow | 38.98 ± 0.17 | 354 ± 62 | 150 ± 25 | 3.99 ± 1.46 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 39.74 ± 0.04 | 375 ± 62 | 221 ± 25 | 23.08 ± 1.14 |
| Hβ Broad | 40.13 ± 0.04 | 2261 ± 667 | 1592 ± 70 | 56.12 ± 2.91 |
| [O III] 5007 | 40.87 ± 0.01 | 375 ± 62 | 222 ± 25 | 313.25 ± 1.31 |
| He I Narrow | 38.52 ± 0.30 | 354 ± 62 | 150 ± 25 | 1.38 ± 0.59 |
| He I Broad | 39.87 ± 0.08 | 7168 ± 63 | 3044 ± 25 | 31.00 ± 3.08 |
| [O I] 6300 | 39.73 ± 0.02 | 354 ± 62 | 150 ± 25 | 22.83 ± 0.64 |
| Hα Narrow | 40.30 ± 0.01 | 354 ± 62 | 150 ± 25 | 84.76 ± 0.75 |
| Hα Broad | 41.16 ± 0.01 | 2534 ± 69 | 1430 ± 25 | 614.60 ± 2.56 |
| [N II] 6585 | 40.49 ± 0.01 | 354 ± 62 | 150 ± 25 | 130.19 ± 0.74 |
| [S II] 6718 | 40.04 ± 0.01 | 354 ± 62 | 150 ± 25 | 46.51 ± 0.67 |
| [S II] 6732 | 40.01 ± 0.01 | 354 ± 62 | 150 ± 25 | 42.93 ± 0.69 |
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 | 22.58 |
|---|---|
| Hβ Broad SNR | 2.79 |
| Hγ Broad SNR | 0.33 |
| AGN frac | 0.12 |
| Host frac | 0.88 |
| log L5100,Host | 42.95 |
| Fe II/Hβ | 1.19 |
| Fe II/[O III] | 0.21 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 2 |
balmer | 1 |
balmer_snr | 2 |
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.