X-ray and optical spectroscopy of IRAS 20181-2244: not a type 2 QSO, but a I Zw 1 object (Q68823656)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | X-ray and optical spectroscopy of IRAS 20181-2244: not a type 2 QSO, but a I Zw 1 object |
No description defined |