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Table 3
Summary of observational constraints for the DSO nature.
| Constraint | Note |
|
|
|
| SED | “red” source; Ks − L′> 3 |
| broad emission lines | FWHMBrγ ~ 100 km s-1 |
| source of polarized Ks band emission | polarization degree ~30% |
| stability and compactness | no significant tidal elongation |
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