Q
QuestionAstronomy

Which black hole is larger, Phoenix A or TON 618?
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Answer

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Step 1:
I'll solve this problem step by step, comparing the sizes of these two supermassive black holes:

Step 2:
: Identify the Size Metrics for Black Holes

Black hole size is typically measured by two key parameters: - Mass - Event horizon radius (Schwarzschild radius)

Step 3:
: Research Phoenix A Black Hole

- Mass of Phoenix A: $$2.7 \times 10^{14} M_{\odot}$$ (solar masses)
- Located in a distant galaxy cluster

Step 4:
: Research TON 618 Black Hole

- Mass of TON 618: $$6.6 \times 10^{10} M_{\odot}$$ (solar masses)
- Considered one of the most massive known black holes

Step 5:
: Compare Masses

\frac{2.7 \times 10^{14}}{6.6 \times 10^{10}} = 4,090
This calculation shows Phoenix A is approximately 4,090 times more massive than TON 618.

Final Answer

Phoenix A is significantly larger than TON 618, making it the larger black hole by a considerable margin.