Swift data hint at a binary supermassive black hole candidate at sub-parsec separation
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| Description | scholarly article by P Severgnini et al published 28 June 2018 in Monthly Notices of the Royal Astronomical Society |
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author: Claudia Cicone Roberto della Ceca Sergio Campana Valentina Braito Lucia Ballo Alessandro Caccianiga Cristian Vignali |
| Publication date | June 28, 2018 |
| Language | English |
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