Black Holes

123456789101112131415161718192021
Across
  1. 3. A type of neutron star with an extremely strong magnetic field, capable of producing intense bursts of X-rays and gamma-rays.
  2. 6. A category of stars that includes neutron stars and black holes, characterized by high density and small size.
  3. 7. A powerful and explosive event in which a star reaches the end of its life cycle, leading to the ejection of outer layers and the formation of a neutron star.
  4. 11. A type of pulsar with a very short rotation period, typically in the range of milliseconds, believed to be spun up by accreting matter from a companion star.
  5. 12. The stretching and elongation of objects (or matter) into long, thin shapes due to intense gravitational forces near a black hole.
  6. 13. A hypothetical exotic compact star composed of quark matter, which may exist as an alternative to neutron stars.
  7. 17. A highly dense stellar remnant formed from the collapsed core of a massive star after a supernova explosion, primarily composed of neutrons.
  8. 19. A point at the center of a black hole where gravitational forces are infinitely strong and space-time is infinitely curved.
  9. 20. An extremely bright and energetic object powered by a supermassive black hole at its center.
  10. 21. The hypothetical opposite of a black hole, where matter and light are ejected outward instead of being pulled in.
Down
  1. 1. The point at which the density of a neutron star is so high that neutrons "drip" out of the star's interior.
  2. 2. he regular interval or recurrence of pulsar pulses, indicating the rotation period of the neutron star.
  3. 4. Energy in the form of electromagnetic waves, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays, emitted by pulsars.
  4. 5. A swirling disk of gas, dust, and other matter that orbits a black hole before being pulled into it.
  5. 8. A highly magnetized, rotating neutron star that emits beams of electromagnetic radiation, often observed in binary systems with black holes.
  6. 9. The emission of energy in the form of gravitational waves, often produced by the acceleration of massive objects, such as the motion of neutron stars.
  7. 10. The region of space around a pulsar or magnetized celestial object where the magnetic field dominates the behavior of charged particles.
  8. 14. A pulsar that is part of a binary star system, orbiting around a companion star, often used in gravitational wave studies.
  9. 15. The region around a black hole where photons can orbit in a circular path, just outside the event horizon.
  10. 16. A hypothetical tunnel-like structure that connects two separate points in spacetime, potentially providing a shortcut for travel.
  11. 18. The boundary surrounding a black hole beyond which nothing, not even light, can escape