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  • What is a black dwarf?

    Questioner:Ethan Hall 2023-04-07 10:53:29
The most authoritative answer in 2024
  • Felix Turner——Works at SmartGrid Technology, Lives in Munich, Germany.

    Hello, I'm a space enthusiast with a keen interest in astrophysics. Let's dive into the concept of a black dwarf.

    A black dwarf is a theoretical celestial object that is the end state of a small star, such as a red dwarf. It is essentially the remains of a white dwarf that has cooled down to the point where it no longer emits significant light or heat. However, the universe is not old enough for any white dwarfs to have cooled to this state yet, so black dwarfs remain hypothetical.

    White dwarfs are the remnants of stars that have exhausted their nuclear fuel and shed their outer layers. They are incredibly dense, with a mass similar to that of the Sun but a size comparable to Earth. Over time, as they radiate away their residual heat, they cool and fade. A black dwarf would be the final stage of this cooling process, where the white dwarf has cooled to temperatures similar to the cosmic background radiation.

    It's important to note that the term "black dwarf" is not to be confused with black holes, which are formed from the collapse of much more massive stars and are characterized by their intense gravitational pull.

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  • Harper Lee——Studied at the University of São Paulo, Lives in São Paulo, Brazil.

    A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently that it no longer emits significant heat or light.read more >>
    +119962023-04-08 10:53:29

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