LEDA 3095695
Observation
| Spectrum ID | 19557796_sp1 |
|---|---|
| Alt name | PGC 3095695 |
| z | 0.0800 |
| RA, Dec | 70.3439, -27.1387 |
| MJD | 60946.76 |
| SNR/Å B/R | 9.6/15.9 |
| Obs Airmass | 1.00 |
| SMSS ID | 19557796 |
| Closest SMSS | 10.98'', 19557800 |
| SMSS Mean r6"ap | 15.5 ± 0.0 |
| 2MASS Kext | nan ± nan |
AGN Properties
| Spectrum Type | Sy 1.5 |
|---|---|
| Quality Flag | good |
| AGN reference | PGC |
| MW E(B−V) | 0.031 |
| Power law αν | -1.45 ± 0.14 |
| log L5100,AGN | 44.03 ± 0.02 |
| log HβBr/[O III] | -0.34 ± 0.06 |
| log ML5100/M☉ | 7.85 ± 0.15 |
| log MHα/M☉ | 7.87 ± 0.06 |
| log MHβ/M☉ | 7.85 ± 0.16 |
| log M[O III]/M☉ | 8.20 ± 0.16 |
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 | 41.07 ± 0.08 | 345 ± 63 | 189 ± 31 | 5.12 ± 0.52 |
| Hγ Broad | 41.41 ± 0.14 | 2035 ± 724 | 619 ± 223 | 10.07 ± 0.80 |
| [O III] 4364 | 40.85 ± 0.17 | 340 ± 63 | 143 ± 25 | 3.10 ± 0.33 |
| He II Narrow | 40.88 ± 0.09 | 340 ± 63 | 143 ± 25 | 3.42 ± 0.31 |
| He II Broad | 41.14 ± 0.19 | 2013 ± 915 | 854 ± 388 | 4.95 ± 0.69 |
| Hβ Narrow | 41.42 ± 0.05 | 345 ± 63 | 189 ± 31 | 12.19 ± 0.53 |
| Hβ Broad | 42.20 ± 0.06 | 2920 ± 464 | 1400 ± 297 | 74.29 ± 1.15 |
| [O III] 5007 | 42.54 ± 0.01 | 345 ± 63 | 189 ± 31 | 165.00 ± 0.67 |
| He I Narrow | 40.30 ± 0.21 | 340 ± 63 | 143 ± 25 | 1.03 ± 0.20 |
| He I Broad | 41.22 ± 0.14 | 2300 ± 964 | 977 ± 409 | 8.02 ± 0.56 |
| [O I] 6300 | 40.86 ± 0.04 | 340 ± 63 | 143 ± 25 | 3.91 ± 0.21 |
| Hα Narrow | 42.02 ± 0.02 | 340 ± 63 | 143 ± 25 | 57.90 ± 0.42 |
| Hα Broad | 42.88 ± 0.01 | 2600 ± 149 | 1242 ± 39 | 417.33 ± 1.02 |
| [N II] 6585 | 41.26 ± 0.04 | 340 ± 63 | 143 ± 25 | 10.14 ± 0.34 |
| [S II] 6718 | 41.22 ± 0.02 | 340 ± 63 | 143 ± 25 | 9.19 ± 0.29 |
| [S II] 6732 | 41.10 ± 0.03 | 340 ± 63 | 143 ± 25 | 7.01 ± 0.29 |
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 | 37.82 |
|---|---|
| Hβ Broad SNR | 9.85 |
| Hγ Broad SNR | 2.80 |
| AGN frac | 0.90 |
| Host frac | 0.10 |
| log L5100,Host | 43.07 |
| Fe II/Hβ | 0.37 |
| Fe II/[O III] | 0.17 |
Quality flags
spurious_hab/hbb | 0.0/0 |
|---|---|
l5100 | 0 |
balmer | 0 |
balmer_snr | 1 |
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.