Black Holes or Black Hole Stars? Astronomers Spar over 'Little Red Dots'(quantamagazine.org) |
Black Holes or Black Hole Stars? Astronomers Spar over 'Little Red Dots'(quantamagazine.org) |
One example, Canis Majoris has a radius of about 1420 solar radii. But its mass is roughly 17±8 times the mass of the Sun and therefore an average density of 5.33 to 8.38 mg/m3. “It is over 100.000 times less dense than Earth’s atmosphere at sea level.”
That's nuts. How on earth does fusion happen at that density? Is there a denser core that actually fuses, and the outer fluffy bits just glow from the inner heat?
As an example, I pulled the stats for an electric locomotive. 19x3x4.4 meters, mass 90 metric tonnes. That's an average density of about 1/3rd of water.
Is there anything behind these objects they could lens?
PBS Space Time: https://www.youtube.com/watch?v=FMdrD_jcYgE
love those channels