Intergalactic dust

Intergalactic dust is cosmic dust in between galaxies in intergalactic space.[1] Evidence for intergalactic dust has been suggested as early as 1949, and study of it grew throughout the late 20th century.[1] There are large variations in the distribution of intergalactic dust.[1] Dust may affect intergalactic distance measurements, such as supernovae and quasars in other galaxies.[2] Partially due to the dust's absorption and re-emission of visible light, observations of more distant astronomical objects have greater apparent magnitude when conducted in infrared.[3]

Intergalactic dust can form intergalactic dust clouds, known since the 1960s to exist around some galaxies.[1] By the 1980s, at least four intergalactic dust clouds had been discovered within several megaparsecs of the Milky Way galaxy,[1] exemplified by the Okroy Cloud.[1]

See also

References

  1. ^ a b c d e f M. E. Bailey; D. A. Williams (1988). Dust in the universe: the proceedings of a conference at the Department of Astronomy, University of Manchester, 14–18 December 1987. CUP Archive. p. 509. ISBN 978-0-521-35580-3.
  2. ^ Atkinson, Nancy (February 26, 2009). "Intergalactic Dust Could Be Messing Up Observations, Calculations". Universe Today. Retrieved December 13, 2021.
  3. ^ "New Images From Euclid Mission Reveal Wide View of the Dark Universe".

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