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Centaurus X-3

Oct. 22, 2026

Scientists have discovered that one of the brightest X-ray pulsars, Centaurus X-3 is gobbling up material through an accretion disk.

About Centaurus X-3:

  • It is one of the brightest X-ray pulsars discovered in the constellation Centaurus.
  • It is a high-mass X-ray binary (HMXB) where the companion is more than 10 times the Sun’s mass,
  • Location: It is located approximately 24,000 light-years from Earth. 
  • It contains a disk-fed pulsar with a period of 4.84 seconds that is in a 2.087 day orbit around an O-star companion. 
    • An X-ray binary pulsar consists of a pulsar— a highly magnetised neutron star, and a Sun-like star bound in a gravitational dance.
    • A neutron star is a celestial body with the mass of our sun crunched into a ball the size of Bangalore.
    • In an X-ray binary, the pulsar’s extreme gravity pulls in material ejected by its companion star, and the pulsar starts accreting material from it, shooting out X-rays in the process.

What are Pulsars?

  • These are rapidly rotating neutron stars that blast out pulses of radiation at regular intervals ranging from seconds to milliseconds. 
  • Pulsars emit radiation from their magnetic poles, known as the primary emission.
  • Pulsars have very strong magnetic fields, which funnel jets of particles out along the two magnetic poles. These accelerated particles produce very powerful beams of light.
  • Pulsars have been primarily observed at radio wavelengths.

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