LEDA 90210
Observation
| Spectrum ID | 114036187_sp1 |
|---|---|
| Alt name | IRAS 15238-3058 |
| z | 0.0477 |
| RA, Dec | 231.7229, -31.1439 |
| MJD | 60904.38 |
| SNR/Å B/R | 6.1/10.7 |
| Obs Airmass | 1.04 |
| SMSS ID | 114036187 |
| Closest SMSS | 14.58'', 114036185 |
| SMSS Mean r6"ap | 15.9 ± 0.0 |
| 2MASS Kext | 11.1 ± 0.1 |
AGN Properties
| Spectrum Type | Sy 2 |
|---|---|
| Quality Flag | good |
| AGN reference | PGC |
| MW E(B−V) | 0.305 |
| Power law αν | -1.36 ± 0.28 |
| log L5100,AGN | 43.66 ± 0.03 |
| log HβBr/[O III] | — |
| log ML5100/M☉ | — |
| log MHα/M☉ | — |
| log MHβ/M☉ | — |
| log M[O III]/M☉ | — |
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 | 40.58 ± 0.19 | 586 ± 67 | 236 ± 27 | 3.67 ± 0.59 |
| Hγ Broad | — | — | — | — |
| [O III] 4364 | 39.91 ± 0.36 | 472 ± 67 | 200 ± 27 | 0.80 ± 0.57 |
| He II Narrow | 39.95 ± 0.42 | 472 ± 67 | 200 ± 27 | 0.92 ± 0.49 |
| He II Broad | 40.36 ± 0.29 | 1192 ± 81 | 506 ± 33 | 2.32 ± 0.78 |
| Hβ Narrow | 41.14 ± 0.06 | 586 ± 67 | 236 ± 27 | 14.54 ± 0.54 |
| Hβ Broad | — | — | — | — |
| [O III] 5007 | 40.93 ± 0.05 | 586 ± 67 | 236 ± 27 | 9.03 ± 0.52 |
| He I Narrow | 39.86 ± 0.33 | 472 ± 67 | 200 ± 27 | 0.86 ± 0.34 |
| He I Broad | 40.03 ± 0.35 | 1178 ± 62 | 500 ± 25 | 1.32 ± 0.53 |
| [O I] 6300 | 40.72 ± 0.05 | 472 ± 67 | 200 ± 27 | 6.48 ± 0.36 |
| Hα Narrow | 41.96 ± 0.04 | 472 ± 67 | 200 ± 27 | 97.19 ± 0.63 |
| Hα Broad | — | — | — | — |
| [N II] 6585 | 41.73 ± 0.04 | 472 ± 67 | 200 ± 27 | 57.71 ± 0.57 |
| [S II] 6718 | 41.25 ± 0.01 | 472 ± 67 | 200 ± 27 | 23.40 ± 0.44 |
| [S II] 6732 | 41.29 ± 0.02 | 472 ± 67 | 200 ± 27 | 25.62 ± 0.44 |
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 | 0.00 |
|---|---|
| Hβ Broad SNR | 0.00 |
| Hγ Broad SNR | 0.00 |
| AGN frac | 0.92 |
| Host frac | 0.08 |
| log L5100,Host | 42.61 |
| Fe II/Hβ | — |
| Fe II/[O III] | 1.50 |
Quality flags
spurious_hab/hbb | 1.0/0 |
|---|---|
l5100 | 0 |
balmer | 2 |
balmer_snr | 2 |
hb_width | 2 |
balmer_width | 2 |
Hα mass estimates from Cho+2023. Remaining mass estimates from R–L relations in Wang & Woo 2024 and zero-points from Amrutha+2026.