2MASS J23421687-0502053
Observation
| Spectrum ID | 8576278_sp1 |
|---|---|
| Alt name | g2342169-050205 |
| z | 0.0768 |
| RA, Dec | 355.5703, -5.0348 |
| MJD | 60171.67 |
| SNR/Å B/R | 9.2/12.9 |
| Obs Airmass | 1.12 |
| SMSS ID | 8576278 |
| Closest SMSS | None (< 15") |
| SMSS Mean r6"ap | 17.1 ± 0.1 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | 6dFGS |
| MW E(B−V) | 0.027 |
| Power law αν | -0.60 ± 0.16 |
| log L5100,AGN | 43.28 ± 0.02 |
| log HβBr/[O III] | -0.07 ± 0.21 |
| log ML5100/M☉ | 7.29 ± 0.03 |
| log MHα/M☉ | 7.06 ± 0.03 |
| log MHβ/M☉ | 7.26 ± 0.11 |
| log M[O III]/M☉ | 7.45 ± 0.02 |
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 | 40.19 ± 0.09 | 301 ± 63 | 182 ± 28 | 3.28 ± 0.55 |
| Hγ Broad | 41.20 ± 0.03 | 3205 ± 162 | 1070 ± 47 | 33.27 ± 1.00 |
| [O III] 4364 | 39.93 ± 0.16 | 288 ± 63 | 122 ± 25 | 1.81 ± 0.33 |
| He II Narrow | 39.97 ± 0.10 | 288 ± 63 | 122 ± 25 | 2.24 ± 0.33 |
| He II Broad | — | — | — | — |
| Hβ Narrow | 40.57 ± 0.04 | 301 ± 63 | 182 ± 28 | 9.35 ± 0.60 |
| Hβ Broad | 41.41 +0.40−0.02 | 2232 ± 55 | 821 ± 28 | 64.84 ± 1.01 |
| [O III] 5007 | 41.49 ± 0.01 | 301 ± 63 | 182 ± 28 | 79.90 ± 0.68 |
| He I Narrow | 39.26 ± 0.35 | 288 ± 63 | 122 ± 25 | 0.59 ± 0.32 |
| He I Broad | 40.58 ± 0.05 | 2331 ± 142 | 990 ± 60 | 12.53 ± 0.86 |
| [O I] 6300 | 39.76 ± 0.09 | 288 ± 63 | 122 ± 25 | 2.09 ± 0.27 |
| Hα Narrow | 40.89 ± 0.02 | 288 ± 63 | 122 ± 25 | 29.48 ± 0.50 |
| Hα Broad | 42.08 ± 0.01 | 1795 ± 65 | 830 ± 25 | 463.27 ± 1.52 |
| [N II] 6585 | 40.28 ± 0.05 | 288 ± 63 | 122 ± 25 | 7.35 ± 0.48 |
| [S II] 6718 | 40.03 ± 0.06 | 288 ± 63 | 122 ± 25 | 4.19 ± 0.54 |
| [S II] 6732 | 39.91 ± 0.09 | 288 ± 63 | 122 ± 25 | 3.21 ± 0.57 |
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 | 38.93 |
|---|---|
| Hβ Broad SNR | 10.31 |
| Hγ Broad SNR | 5.29 |
| AGN frac | 0.81 |
| Host frac | 0.18 |
| log L5100,Host | 42.64 |
| Fe II/Hβ | — |
| Fe II/[O III] | — |
Quality flags
spurious_hab/hbb | 0.0/1 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 0 |
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.