Intergalactic dust ( Eng. Intergalactic dust ) - cosmic dust in intergalactic space [1] . Early evidence of the existence of intergalactic dust appeared in 1949, and the study took place throughout the end of the 20th century [1] . Many variations of the distribution of intergalactic dust have been discovered [1] . Dust can distort distance measurements at intergalactic scales, for example, distances to objects such as supernovae and quasars in other galaxies. [2]
Intergalactic dust can be part of the clouds of intergalactic dust [1] . By 1980, four intergalactic dust clouds were detected within a few megaparsec (Mpc) of the Milky Way galaxy, as an example, the Okroy cloud.
In February 2014, NASA announced a significantly modernized database for tracking polycyclic aromatic hydrocarbons (PAHs) in the universe [3] . According to scientists, more than 20% of the carbon in the universe can be associated with PAHs, possible starting materials for life formation. PAHs appear to have been formed as early as two billion years after the big bang, widespread throughout the universe and associated with new stars and exoplanets .
The intergalactic space is filled with extremely rarefied ionized gas with an average density of less than 1 hydrogen atom per 1 dm³ [4] .
See also
- Extragalactic Astronomy
- Intergalactic space
- Intergalactic star
- Intergalactic environment
- Super speed stars
Notes
- ↑ 1 2 3 4 ME Bailey, David Arnold Williams - Dust in the Universe: the proceedings of a conference at the Department of Astronomy, University of Manchester, December 14-18, 1987 - page 509 (Google Books accessed 2010)
- ↑ Nancy Atkinson - Intergalactic Dust Could Be Messing Up Observations, Calculations (February 26, 2009) - Universe Today
- ↑ NASA Ames PAH IR Spectroscopic Database . www.astrochemistry.org. Date of treatment June 25, 2019.
- ↑ State Corporation for Space Activities “Roscosmos” . www.roscosmos.ru. Date of treatment June 25, 2019.
- DETECTION OF THE INTERGALACTIC METEOR PARTICLE ON THE 6TH TELESCOPE
- Hoover, Rachel Need to Track Organic Nano-Particles Across the Universe? NASA's Got an App for That . NASA (February 21, 2014). Date of treatment February 22, 2014.