Discussion Overview
The discussion centers on the rarity and significance of dual supermassive black holes (SMBHs) in galaxies. Participants explore observational evidence, theoretical implications, and the potential consequences of having two black holes in close proximity within a galaxy.
Discussion Character
- Debate/contested
- Exploratory
- Technical explanation
Main Points Raised
- Some participants note that only 12 galaxies with dual black holes have been identified, referencing Dr. Julie Comerford's observations of a newly discovered galaxy with one significantly smaller and "naked" black hole.
- Others clarify that the discussion pertains specifically to supermassive black holes, contrasting them with the numerous stellar black holes found in the Milky Way.
- One participant suggests that galaxy mergers should lead to many double or even triple SMBH galaxies, but acknowledges that detecting them requires specialized observational efforts.
- A later reply questions whether any significant consequences have been observed from dual SMBHs, proposing that their effects might be trivial.
Areas of Agreement / Disagreement
Participants express differing views on the rarity and significance of dual SMBHs, with some suggesting they are common but difficult to detect, while others argue that their effects may be minimal. The discussion remains unresolved regarding the implications of dual SMBHs.
Contextual Notes
Limitations include the dependence on observational techniques for detecting dual SMBHs and the potential for missing cases due to the need for tailored observations. The discussion also reflects varying definitions and understandings of black holes in different contexts.
